Re: Making an ER40 Collet Chuck
Glenn
Sent: Thursday,
April 23, 2020, 7:38 PM
Subject:
[atlas-craftsman IO] Making an ER40 Collet Chuck
toggle quoted message
Show quoted text
Where is Jody going to get a forge and how will he keep it at
1000+ degrees for several hours?
Typos are courtesy of autocorrect.
Or you can put it in a metal box or can packed with
carbon, scraps of leather or horn, or a few other things,
seal it, and put it in a forge and keep it red-hot for
several hours. Then dump and quench. There are usually
several ways to do things in metalworking. Some of them
are old-fashioned and not as controllable, but adequate
for occasional use.?
I guess it helps if you read old books on how things
were done before modern equipment was invented.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to
change a diaper, plan an invasion,
butcher a hog, conn a ship, design a
building, write a sonnet, balance
accounts, build a wall, set a bone,
comfort the dying, take orders,
give orders, cooperate, act alone,
solve equations, analyze a new
problem, pitch manure, program a
computer, cook a tasty meal, fight
efficiently, die gallantly.
Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 08:31:38 PM CDT, Andrei
<calciu1@...> wrote:
1018 can be hardened
by carburizing. It takes hours at high
temperatures, it takes a special furnace where
they pump carbon monoxide and sulphur and other
stuff. Definitely not something you can do at
home.? And it won't be as good as o1 steel
Typos are courtesy of autocorrect.
Glenn sticking 1018 in water
will not harden its a waist of time
GP
Glenn
Sent: Thursday, April
23, 2020, 5:18 PM
Subject:
[atlas-craftsman IO] Making an
ER40 Collet Chuck
So I went by the metal store by the
house and picked up a 3" 1018 round
bar drop off for a few bucks.? Very
little round bar to choose from so I
grabbed a piece of what they had since
its only a few bucks.
I believe I should be able to get
this heat treated afterwards.? ?I'll
have to see what sort of hardness it?
an provide.
I have no idea how this will
machine.? I'll give it a spin.
So what sort of hardness is needed
for a? collet chuck.
-Jody
Sent via the Samsung Galaxy S10+,
an AT&T 5G Evolution capable
smartphone
-------- Original message
--------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO]
Making an ER40 Collet Chuck
A collet chuck needs
a hardened surface where the
collet"s contact the taper of the
chuck. You can use a oil hardening
steel or water hardening. Make
sure you do it properly and watch
the colors of the steel when you
dunk it in. I can walk you thru
the process but i need to know the
type of steel
GP
On Thursday, April 23, 2020,
4:38:15 PM EDT, Andrei
<calciu1@...>
wrote:
Oops. forgot about the
collets being hardened and
the cast iron, vastly less
so. Thanks?GP
A collet
chuck needs to be made
from tool steel not
cast iron. The collet
will dig in to the
cast iron. Its a no no
GP
On Thursday, April
23, 2020, 4:16:05 PM
EDT, Andrei
<calciu1@...> wrote:
1 foot long
piece of 4.25"
cast iron is 106
bucks at
mcmaster. yuo
need this
diameter to
finish at 100mm
for your chuck.
1144 is only
available in 3"
max diameter, so
your options may
be limited in
using this.?
Cast iron
is always a
good (but
messy) option.
You can order
a slice of
various
diameters from
McMaster Carr.
This is a
company that
never
disappoints,
until your
check your
bill
?.
Their products
are top notch,
selections are
wide and deep
and they are
delivered
quickly. The
prices match
the quality of
product and
service. I
have never
hesitated
buying from
them.?
Best
Regards,
Andrei
D. Calciu
6371 Birch
Leaf Court
Burke, VA
22015-3528 USA
?
703-995-4822
(landline and
Fax)
571-436-0169
(mobile)
mailto:calciu1@...
?
?
Jody -
Regarding your
question about
stainless for
your project:
I have not had
much
experience
working with
stainless, but
what little I
have had has
all been bad.
This may say
more about my
fairly limited
machining
experience
than anything
else, but I
found work
hardening to
be a real
problem.
Take a look at
this chart for
some idea of
how easy it is
to machine
various
metals:
You might
consider 1144
stressproof.
You can look
up various
alloys on
SpeedyMetals
and get more
information on
typical uses.
|
Re: Making an ER40 Collet Chuck
Okay, I believe you. You would do well to tell these people
of their error also please?
It gives the short list of specs for 1018.
Thanks for correcting me, before I bought some and went to
all the trouble of machining it and heating it up for an hour or
so.
Glenn
Please don't take this wrong as it is meant as an honest
thanks and compliment.
Sent: Thursday,
April 23, 2020, 6:05 PM
Subject:
[atlas-craftsman IO] Making an ER40 Collet Chuck
toggle quoted message
Show quoted text
Glenn sticking 1018 in
water will not harden its a waist of time
GP
Glenn
Sent: Thursday, April 23, 2020, 5:18 PM
Subject: [atlas-craftsman IO] Making an
ER40 Collet Chuck
So I went by the metal store by the house and
picked up a 3" 1018 round bar drop off for a few
bucks.? Very little round bar to choose from so I
grabbed a piece of what they had since its only a few
bucks.
I believe I should be able to get this heat treated
afterwards.? ?I'll have to see what sort of hardness
it? an provide.
I have no idea how this will machine.? I'll give it
a spin.
So what sort of hardness is needed for a? collet
chuck.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G
Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40
Collet Chuck
A collet chuck needs a hardened
surface where the collet"s contact the taper of
the chuck. You can use a oil hardening steel or
water hardening. Make sure you do it properly and
watch the colors of the steel when you dunk it in.
I can walk you thru the process but i need to know
the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT,
Andrei <calciu1@...>
wrote:
Oops. forgot about the collets being
hardened and the cast iron, vastly less so.
Thanks?GP
A collet chuck needs to
be made from tool steel not cast iron.
The collet will dig in to the cast
iron. Its a no no
GP
On Thursday, April 23, 2020,
4:16:05 PM EDT, Andrei <calciu1@...>
wrote:
1 foot long piece of 4.25"
cast iron is 106 bucks at
mcmaster. yuo need this diameter
to finish at 100mm for your
chuck.
1144 is only available in 3"
max diameter, so your options
may be limited in using this.?
Cast iron is always a good
(but messy) option. You can
order a slice of various
diameters from McMaster Carr.
This is a company that never
disappoints, until your check
your bill ?. Their
products are top notch,
selections are wide and deep
and they are delivered
quickly. The prices match
the quality of product and
service. I have never
hesitated buying from them.?
Best
Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and
Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your
question about stainless for
your project: I have not had
much experience working with
stainless, but what little I
have had has all been bad.
This may say more about my
fairly limited machining
experience than anything else,
but I found work hardening to
be a real problem.
Take a look at this chart for
some idea of how easy it is to
machine various metals:
You might consider 1144
stressproof. You can look up
various alloys on SpeedyMetals
and get more information on
typical uses.
|
Re: Finding small objects
Perry said:
"Any suggestions for finding small parts thrown by the wire wheel on the grinder"
A couple of preemptive options are to attach some kind of handle to your part, it a nut, put it on a bolt, on really small parts i wrap one end in blue tape with a long tail, if I drop it and the tail survives the wire wheel it is way easier to find. On some parts (if safe) I attach a short length of soft wire (no sharp ends) to give a better hold on the part, if it catches in the machine I let go. Also listen carefully to the sounds the part makes as it bounces around and you can often identify what makes those sounds when a part is bounced off of them. For threaded parts I bought a few cheap vice grip type pliers at HF and clamped nuts of various sizes in the jaw then welded them in, then sawed the captive nut in two, and ground out a little extra space in the jaw area to make room for the bolt/screw head. Also put a chunk of old shag carpet in the target zone of your grinder, it tends to capture parts or at least slow them down.
Murphy's law of small parts; If there is a hole or drain, a dropped part will find it.
I build a partially functioning Interocitor, I found that if i leave it powered up by the grinder it somehow captures those nuts, bolts and parts that other people loose into hyperspace and they just come flying out of a small time/space portal. It gets annoying, sometimes I need a shovel there are so many ; )
--
Ken H in AZ
Knowledge is like manure, it won't do any good unless you spread it around.
|
Re: Making an ER40 Collet Chuck
Lots of people have built forges and furnaces by digging a hole in the ground. Or piling up dirt. Bricks, blocks, or rocks? too. A fan, a handful of feathers, or a shop vac to force draft. Scrap wood, charcoal, waste oil, propane... There are a lot of ways to do it.?
Alexander Weygers has a pretty good book, The Complete Modern Blacksmith.?
https://www.amazon.com/Complete-Modern-Blacksmith-Alexander-Weygers-ebook/dp/B007KPNJD8/ref=mp_s_a_1_3?dchild=1&keywords=complete+modern+blacksmith&qid=1587698705&sr=8-3
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 09:38:37 PM CDT, Andrei <calciu1@...> wrote:
Where is Jody going to get a forge and how will he keep it at 1000+ degrees for several hours?
Typos are courtesy of autocorrect.
Or you can put it in a metal box or can packed with carbon, scraps of leather or horn, or a few other things, seal it, and put it in a forge and keep it red-hot for several hours. Then dump and quench. There are usually several ways to do things in metalworking.
Some of them are old-fashioned and not as controllable, but adequate for occasional use.?
I guess it helps if you read old books on how things were done before modern equipment was invented.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 08:31:38 PM CDT, Andrei <calciu1@...> wrote:
1018 can be hardened by carburizing. It takes hours at high temperatures, it takes a special furnace where they pump carbon monoxide and sulphur and other stuff. Definitely not something you can do at home.? And it won't be as good
as o1 steel
Typos are courtesy of autocorrect.
Glenn sticking 1018 in water will not harden its a waist of time
GP
On Thursday, April 23, 2020, 9:02:06 PM EDT, Glenn N <glennsneff@...> wrote:
Glenn
Sent: Thursday, April 23, 2020, 5:18 PM
Subject: [atlas-craftsman IO] Making an ER40 Collet Chuck
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you
thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei
<calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei
<calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
|
Re: Making an ER40 Collet Chuck
Bill, I agree 110%! Some times you just have to work with whats available. When I made mine I just happened to come across a slug of 8620 that was free. I did not harden it, and has performed flawlessly since 2013 with no need for truing. I made another one on the fly out of 6061 aluminum and it has been is use since 2018 with minor touch ups. When it comes down to it, one has to weigh the usage, life expectancy and cost. I will offer a piece of advice on making one, make the snout a tad longer if you have room and then thread the snout a few extra threads, then as wear takes place you can trim the snout back after you true up the taper bore for proper collet and nut fit.
|
Re: Making an ER40 Collet Chuck
Where is Jody going to get a forge and how will he keep it at 1000+ degrees for several hours?
Typos are courtesy of autocorrect.
toggle quoted message
Show quoted text
Or you can put it in a metal box or can packed with carbon, scraps of leather or horn, or a few other things, seal it, and put it in a forge and keep it red-hot for several hours. Then dump and quench. There are usually several ways to do things in metalworking.
Some of them are old-fashioned and not as controllable, but adequate for occasional use.?
I guess it helps if you read old books on how things were done before modern equipment was invented.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 08:31:38 PM CDT, Andrei <calciu1@...> wrote:
1018 can be hardened by carburizing. It takes hours at high temperatures, it takes a special furnace where they pump carbon monoxide and sulphur and other stuff. Definitely not something you can do at home.? And it won't be as good
as o1 steel
Typos are courtesy of autocorrect.
Glenn sticking 1018 in water will not harden its a waist of time
GP
On Thursday, April 23, 2020, 9:02:06 PM EDT, Glenn N <glennsneff@...> wrote:
Glenn
Sent: Thursday, April 23, 2020, 5:18 PM
Subject: [atlas-craftsman IO] Making an ER40 Collet Chuck
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you
thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei
<calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei
<calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
|
Re: Making an ER40 Collet Chuck
Once the collet chuck is finished machined it must be hardened that also includes 4140??
GP
On Thursday, April 23, 2020, 9:51:52 PM EDT, Dave Matticks <dpm100@...> wrote:
If you use "tool steel" and don't harden it that might even set you back! When you buy a slug of O1,? A2, whatever it's not even near ready! Bare, marginal minimum in my opinion would be 4140 prehard.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- From: Andrei <calciu1@...> Date: 4/23/20 15:38 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
enther Paul <paulguenter@...>
Sent: Thursday, April 23, 2020 4:34 PM
To: [email protected] < [email protected]>
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
?
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
If you use "tool steel" and don't harden it that might even set you back! When you buy a slug of O1,? A2, whatever it's not even near ready! Bare, marginal minimum in my opinion would be 4140 prehard.?
Dave?
Sent from my T-Mobile 4G LTE Device
toggle quoted message
Show quoted text
-------- Original message -------- From: Andrei <calciu1@...> Date: 4/23/20 15:38 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
enther Paul <paulguenter@...>
Sent: Thursday, April 23, 2020 4:34 PM
To: [email protected] < [email protected]>
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
?
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
Or you can put it in a metal box or can packed with carbon, scraps of leather or horn, or a few other things, seal it, and put it in a forge and keep it red-hot for several hours. Then dump and quench. There are usually several ways to do things in metalworking. Some of them are old-fashioned and not as controllable, but adequate for occasional use.?
I guess it helps if you read old books on how things were done before modern equipment was invented.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 08:31:38 PM CDT, Andrei <calciu1@...> wrote:
1018 can be hardened by carburizing. It takes hours at high temperatures, it takes a special furnace where they pump carbon monoxide and sulphur and other stuff. Definitely not something you can do at home.? And it won't be as good as o1 steel
Typos are courtesy of autocorrect.
Glenn sticking 1018 in water will not harden its a waist of time
GP
On Thursday, April 23, 2020, 9:02:06 PM EDT, Glenn N <glennsneff@...> wrote:
Glenn
Sent: Thursday, April 23, 2020, 5:18 PM
Subject: [atlas-craftsman IO] Making an ER40 Collet Chuck
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you
thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei
<calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei
<calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
|
Re: Making an ER40 Collet Chuck
As long as it's really true in the end.
Dave?
Sent from my T-Mobile 4G LTE Device
toggle quoted message
Show quoted text
-------- Original message -------- From: Ralph Hulslander <rhulslander@...> Date: 4/23/20 14:00 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Why bother with adjustments? I like the ?no adjustment?needed.
Ralph On Thu, Apr 23, 2020 at 2:37 PM Jody < jp4lsu@...> wrote: Thanks for the explanation Andrei.? I knew there were chucks with those true features.? I don't think I've seen a collet chuck with the feature.
So basically you have a 2 piece collet chuck.? One (adaptor) that goes on spindle then the actual chuck that can be adjusted? on the adaptor. -Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message -------- Date: 4/23/20 12:22 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Jody,
the set-true feature is like a 4-jaw chuck adjustment, but at the chuck/plate connection, instead of the chuck jaws.?
It is comprised of 4 set-screws located at 90 degrees from each other. They screw in from the outside of the chuck and they press on the registration boss on the adapter plate. Effectively, they allow you to indicate your chuck while attached to the spindle.
once your indicator is close to perfect, you tighten the mounting bolts and you are done.
You can make your first chuck without this feature. Just machine the adapter plate as per instructions (usually, skim the faces of the registration boss and backing surface, the same amount!), drill the mounting holes, install the ER40 chuck and you are done.?
You can always add the set-true feature later, if you want to have a simpler project to start with.?
Thanks Bill, I'm not familiar with that feature.? I'll check out the link
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 11:31 AM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Jody:
Not sure if you're considering building a "set-tru" feature into your ER40 chuck, but if you are,
with drawings for doing so.
I used the drawings for building a "set-tru" 5C collet chuck, and it turned out pretty well.?
Bill
|
Re: Making an ER40 Collet Chuck
1018 can be hardened by carburizing. It takes hours at high temperatures, it takes a special furnace where they pump carbon monoxide and sulphur and other stuff. Definitely not something you can do at home.? And it won't be as good as o1 steel
Typos are courtesy of autocorrect.
toggle quoted message
Show quoted text
Glenn sticking 1018 in water will not harden its a waist of time
GP
On Thursday, April 23, 2020, 9:02:06 PM EDT, Glenn N <glennsneff@...> wrote:
Glenn
Sent: Thursday, April 23, 2020, 5:18 PM
Subject: [atlas-craftsman IO] Making an ER40 Collet Chuck
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you
thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei
<calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei
<calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
|
Re: Making an ER40 Collet Chuck
Glenn sticking 1018 in water will not harden its a waist of time
GP
On Thursday, April 23, 2020, 9:02:06 PM EDT, Glenn N <glennsneff@...> wrote:
Glenn
Sent: Thursday,
April 23, 2020, 5:18 PM
Subject:
[atlas-craftsman IO] Making an ER40 Collet Chuck
So I went by the metal store by the house and
picked up a 3" 1018 round bar drop off for a few bucks.? Very
little round bar to choose from so I grabbed a piece of what
they had since its only a few bucks.
I believe I should be able to get this heat
treated afterwards.? ?I'll have to see what sort of hardness it?
an provide.
I have no idea how this will machine.? I'll give
it a spin.
So what sort of hardness is needed for a? collet
chuck.
-Jody
Sent via the Samsung Galaxy S10+, an
AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet
Chuck
A collet chuck needs a
hardened surface where the collet"s contact the taper of the
chuck. You can use a oil hardening steel or water hardening.
Make sure you do it properly and watch the colors of the
steel when you dunk it in. I can walk you thru the process
but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei
<calciu1@...> wrote:
Oops. forgot about the collets being hardened and the
cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made
from tool steel not cast iron. The collet will
dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT,
Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is
106 bucks at mcmaster. yuo need this
diameter to finish at 100mm for your
chuck.
1144 is only available in 3" max
diameter, so your options may be limited
in using this.?
Cast iron is always a good (but
messy) option. You can order a slice of
various diameters from McMaster Carr.
This is a company that never
disappoints, until your check your bill
?. Their products are top notch,
selections are wide and deep and they
are delivered quickly. The prices
match the quality of product and
service. I have never hesitated buying
from them.?
Best
Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about
stainless for your project: I have not
had much experience working with
stainless, but what little I have had
has all been bad. This may say more
about my fairly limited machining
experience than anything else, but I
found work hardening to be a real
problem.
Take a look at this chart for some idea
of how easy it is to machine various
metals:
You might consider 1144 stressproof. You
can look up various alloys on
SpeedyMetals and get more information on
typical uses.
|
Re: Making an ER40 Collet Chuck
Glenn
Sent: Thursday,
April 23, 2020, 5:18 PM
Subject:
[atlas-craftsman IO] Making an ER40 Collet Chuck
toggle quoted message
Show quoted text
So I went by the metal store by the house and
picked up a 3" 1018 round bar drop off for a few bucks.? Very
little round bar to choose from so I grabbed a piece of what
they had since its only a few bucks.
I believe I should be able to get this heat
treated afterwards.? ?I'll have to see what sort of hardness it?
an provide.
I have no idea how this will machine.? I'll give
it a spin.
So what sort of hardness is needed for a? collet
chuck.
-Jody
Sent via the Samsung Galaxy S10+, an
AT&T 5G Evolution capable smartphone
-------- Original message --------
Date: 4/23/20 4:00 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet
Chuck
A collet chuck needs a
hardened surface where the collet"s contact the taper of the
chuck. You can use a oil hardening steel or water hardening.
Make sure you do it properly and watch the colors of the
steel when you dunk it in. I can walk you thru the process
but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei
<calciu1@...> wrote:
Oops. forgot about the collets being hardened and the
cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made
from tool steel not cast iron. The collet will
dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT,
Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is
106 bucks at mcmaster. yuo need this
diameter to finish at 100mm for your
chuck.
1144 is only available in 3" max
diameter, so your options may be limited
in using this.?
Cast iron is always a good (but
messy) option. You can order a slice of
various diameters from McMaster Carr.
This is a company that never
disappoints, until your check your bill
?. Their products are top notch,
selections are wide and deep and they
are delivered quickly. The prices
match the quality of product and
service. I have never hesitated buying
from them.?
Best
Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about
stainless for your project: I have not
had much experience working with
stainless, but what little I have had
has all been bad. This may say more
about my fairly limited machining
experience than anything else, but I
found work hardening to be a real
problem.
Take a look at this chart for some idea
of how easy it is to machine various
metals:
You might consider 1144 stressproof. You
can look up various alloys on
SpeedyMetals and get more information on
typical uses.
|
Re: Making an ER40 Collet Chuck
I send a drawing for you
GP
On Thursday, April 23, 2020, 8:12:08 PM EDT, Jody <jp4lsu@...> wrote:
Thanks GP,? Yes I bought the nut already.? That is the drawing I have from either you or Steve Haskill.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message -------- From: Guenther Paul <paulguenter@...> Date: 4/23/20 4:00 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
This is for the collet chuck maker. I would buy the front nut.
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
Jody The only thing you can have done to 1018 is case harden it. Case hardening will do for a while. The hardness is about 0.010 - 0.15 deep depends on who does it. You have to take it to a hardening shop to get it done. I don't recommend you try the hardening process? ?1018 machines real stringy so have a sharp cutting tool.
GP
On Thursday, April 23, 2020, 8:18:56 PM EDT, Jody <jp4lsu@...> wrote:
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck. -Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message -------- From: Guenther Paul <paulguenter@...> Date: 4/23/20 4:00 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
1018 is mild steel. It won't heat-treat, though you can case-harden it. It's ok to machine, HSS ground for steel and honed sharp will get you a decent finish. It won't last as long as 4140, it won't machine as nicely as 12L14, but you can learn everything you need to make a better one next time, if you don't like how it comes out. A lot of the tooling made over the past hundred years or so has been made from metal not quite as good as 1018.
HTH!
Bill in OKC William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 07:18:56 PM CDT, Jody <jp4lsu@...> wrote:
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck. -Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message -------- From: Guenther Paul <paulguenter@...> Date: 4/23/20 4:00 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
So I went by the metal store by the house and picked up a 3" 1018 round bar drop off for a few bucks.? Very little round bar to choose from so I grabbed a piece of what they had since its only a few bucks.
I believe I should be able to get this heat treated afterwards.? ?I'll have to see what sort of hardness it? an provide.
I have no idea how this will machine.? I'll give it a spin.
So what sort of hardness is needed for a? collet chuck. -Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
toggle quoted message
Show quoted text
-------- Original message -------- From: Guenther Paul <paulguenter@...> Date: 4/23/20 4:00 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you thru the process but i need to know the type of steel
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
Thanks GP,? Yes I bought the nut already.? That is the drawing I have from either you or Steve Haskill.
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
toggle quoted message
Show quoted text
-------- Original message -------- From: Guenther Paul <paulguenter@...> Date: 4/23/20 4:00 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
This is for the collet chuck maker. I would buy the front nut.
GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu
6371 Birch Leaf Court
Burke, VA 22015-3528 USA
?
703-995-4822 (landline and Fax)
571-436-0169 (mobile)
mailto:calciu1@...
?
?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
https://www.speedymetals.com/s-108-cold-finished.aspx
|
Re: Making an ER40 Collet Chuck
Jody, 12L14 is leaded, and can't be hardened. More or less. You can case harden it, but the metal under the case will remain relatively soft. Where using it is a benefit is in ease of machining. If you're not a professional machinist, you could use it, and it might last all your life and still be good for your heirs, 4140 is an ordinance steel, and it can be annealed or hard when you buy it. Hard is tougher to machine, but wouldn't need to be hardened after machining. Annealed you could get away without hardening, but if GP's offering to walk you through it, I'd take him up on the offer. You could use the heck out of it, AND hand it down in like-new condition. And learn some fun and useful stuff while you're making it.
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 23, 2020, 04:00:19 PM CDT, Jody <jp4lsu@...> wrote:
GP, What about 12L14 or 4140??? They are good carbon steels, but I'm not sure if they would be hard enough. -Jody
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei < calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards, Andrei D. Calciu6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@...? ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals:
You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses.
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Re: Making an ER40 Collet Chuck
On Thu, Apr 23, 2020 at 12:54 PM, William Nelson wrote:
I'm not getting why you would make a 2 piece chuck body with a adjust-tru feature. If it's one piece when it's mounted to your spindle and then the inside is machined to the collet taper it would seem that is the best it can get. There will be variables as the spindle is not adjusted properly or has some other deviation. The collets themselves will add a slight bit of run out but you can adjust for every collet you use. So a one piece body with careful machining and perhaps grinding seem to be the best you can get. Am I missing something?
I agree.? The benefit of the set-tru feature is that it allows one to easily correct for inaccuracies introduced by the collet nut and also the collets themselves.? My set of 5C's vary +/- 0.0004", which is a lot if you're using the collet chuck for multiple operations.? The only downside for us hobbyists?with smaller lathes is the set-true feature moves you further away from the spindle nose. I suppose you could machine a backplate with enough slop to allow for adjustments, but you don't get the benefit of the four positioning screws which allow for easy, precise adjustments. Just one opinion, however.
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Ken H
Bill in OKC too
ram50v8efi
Bill Buckalew