Re: Need Pulley for Craftsman Speed-Reducing Attachment
John is the one who found and posted it. I'd seen it before & recognized it, is all. So I posted a link to his message with that attachment. I figured that was more useful than spending hours looking for the copy I'm pretty sure I have here somewhere.
Bill in OKC
On Fri, Apr 17, 2020 at 6:10 PM -0500, "Robert Downs via groups.io" <wa5cab@...> wrote:
Bill, ? That was a good find. ? Robert Downs ? ? Mike, what you need to see is in the attachment to this email from John Wilshusen.
/g/atlas-craftsman/message/107056
HTH!
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
I assume that the pulley must have worked OK but it certainly doesn¡¯t match the recommendations in Machinery¡¯s Handbook.? The angles given in there are 38 degrees max for a pulley nominal diameter of 4.2¡±.? But the groove? widths don¡¯t match, either.? Given that this pulley was sold for years and must have worked OK, I think that I would make it to the drawing at least as far as the grooves are concerned.? As several others have said, you probably don¡¯t need to remove as much metal from the inside as is shown. ? Robert Downs ?
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From: [email protected] [mailto:[email protected]] On Behalf Of mondosmetals
Sent: Friday, April 17, 2020 10:42
To: [email protected]
Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment? On Fri, Apr 17, 2020 at 09:35 AM, jmartin957 <jmartin957@...> wrote: but you¡¯d need different form tools for each pulley diameter. ?The angles are different for each diameter. Please explain. The factory drawing notes that all grooves are 43¡ã Included angle.
Raymond
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Bill, ? That was a good find. ? Robert Downs ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Bill in OKC too via groups.io
Sent: Friday, April 17, 2020 11:39
To: [email protected]
Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment? Mike, what you need to see is in the attachment to this email from John Wilshusen.
/g/atlas-craftsman/message/107056
HTH!
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Wherever this goes thanks GP for starting the fire store of knowledge ?on this thread. Brian Cayer
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On Apr 17, 2020, at 5:46 PM, Robert Downs via groups.io <wa5cab@...> wrote:
? That¡¯s correct.? And not only the recommended angle of the groove sides but the recommended width of the groove at the OD also changes with diameter. ? ? ? Not only would a form tool make no sense because of the likelihood of chatter, but you¡¯d need different form tools for each pulley diameter. ?The angles are different for each diameter.
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
I have to disagree, it also (mainly) feeds the ego of the poster.
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On Apr 17, 2020, at 5:21 PM, Robert Downs via groups.io <wa5cab@...> wrote:
? I¡¯ll have to side with Bill on this matter.? The only thing accomplished by telling someone who asked how to do something that they should already know the answer is to PO the asker.? Had he known the answer, he wouldn¡¯t have asked.? Fortunately, someone else did give the or at least a answer.? Which was that at least with our equipment, it will probably require three cutters, a straight grooving tool and two boring tools, one LH and one RH. ? Robert Downs
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
I¡¯ll have to side with Bill on this matter.? The only thing accomplished by telling someone who asked how to do something that they should already know the answer is to PO the asker.? Had he known the answer, he wouldn¡¯t have asked.? Fortunately, someone else did give the or at least a answer.? Which was that at least with our equipment, it will probably require three cutters, a straight grooving tool and two boring tools, one LH and one RH. ? Robert Downs _._,_._,_
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
That¡¯s correct.? And not only the recommended angle of the groove sides but the recommended width of the groove at the OD also changes with diameter. ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of jmartin957 <jmartin957@...> via groups.io
Sent: Friday, April 17, 2020 08:36
To: [email protected]
Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment? Not only would a form tool make no sense because of the likelihood of chatter, but you¡¯d need different form tools for each pulley diameter. ?The angles are different for each diameter.
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Machinery¡¯s Handbook has drawings of recommended grooves versus pulley diameter.? They give the recommended width and angle between the sides of the groove. ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of mike allen
Sent: Thursday, April 16, 2020 18:34
To: [email protected]
Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment? ??? ??? any one have any pic's of the tool profile they use for makin pulleys ? ??? ??? animal On 4/16/2020 2:46 PM, Dave Matticks wrote: Nice article! Procedure look good, I'd use different tooling but same idea. Not going to make one for this episode but I have made a pulley or 2 in the past. Trued up a couple die cast ones as well, some are near useless out of the box. Not only made in USA but 2 miles from my house! On April 16, 2020 at 1:02 PM "John Wilshusen via groups.io" <wilshusen@...> wrote:
Bruce, One additional thing to add to your literature pile. ?I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. ?You might find it useful as well. John So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things. ? On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote: Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice. Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself! They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum. McMaster Carr can surprise you sometimes. On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote: Thanks all! ? Glenn N ¨C Yes, Robert Downs put this file in the files section. ? Brad ¨C How can 3-D printing & casting & machining be less expensive than the piece of aluminum? ? Kay ¨C Thanks for the Speedy Metals link. ? Robert Downs / Guenther Paul ¨C Thanks for the suggestions on how to machine it more easily. ? Kay Davis / Dave Matticks ¨C 7075 seems much more expensive than the other aluminum choices. ? Craig Treleaven ¨C Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful. ? So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
? ?
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
43 degrees doesn¡¯t make sense to me. ?Machinery¡¯s Handbook says, for a 4L belt, 30 degrees for diameters under 2.65¡± to 38 degrees for diameters over 5.65¡±. ?You don¡¯t have to vary the angles, but you¡¯ll get a lot better contact if you do.
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On Apr 17, 2020, at 11:42 AM, mondosmetals <jwrey@...> wrote:
?On Fri, Apr 17, 2020 at 09:35 AM, jmartin957 <jmartin957@...> wrote:
but you¡¯d need different form tools for each pulley diameter. ?The angles are different for each diameter.
Please explain. The factory drawing notes that all grooves are 43¡ã Included angle. Raymond
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
RE: Form tools on an Atlas 12" lathe
Bruce:
I was fortunate to learn lathe work in the early '60's when most tooling was ground from HSS blanks and the experience I got then has been invaluable now that it's a hobby. The key is to keep the clearance and rake angles as well as the feeds and speeds for the various materials in mind no matter what tool you are grinding. The trickiest tools were usually the small boring or internal threading tools made from a 1/4" or 3/8" HSS blank that had to work inside a 1" diameter blind bore 1 1/2 inches deep. Still, the basics were the same. Keep practicing, keep making chips with offhand ground tools and you'll get really good at it.
I'm not a fan of using form tools on a light lathe like my Atlas 10". It's not a matter of the horsepower, but of the chatter and the possibility of hoggin in. One approach is to nibble away at the work, where a stronger lathe would allow a form tool plunge cut. Use a ball cutter where the tool is basically single point cutting, rather than try to form cut a 1 1/2" diameter sphere. If you don't have a ball cutter make a series of tangential cuts approximating a sphere, check the form with a radius gauge and finish it with a file and wet-or-dry paper. Do a deep cutoff by making several plunge cuts with a parting tool offset by 10 thou to provide plenty of side clearance for chips and lube. In other words, get inventive and have some fun figuring out how to overcome the limitations of your machine.
The pdf of the pulley groove turnng setup is a great example of how to use an inventive setup to solve a problem. Most of all, keep making chips and have fun.
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Good going Bruce, looks like a useful tool to have and beautifully executed.
Sent from my Boost Mobile Phone.
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-------- Original message -------- From: exerpd+groupsio@... Date: 4/17/20 10:57 AM (GMT-05:00) Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment
Also, just so people will not think I am totally clueless, this is my COVID19 project I just completed on my lathe.? It is a knock-off of an old Miller Falls No. 1 Hand Vise.? I am proud of it since it is only about the 3rd project I have ever done¡¡¡¡¡¡.
Art Eckstein ¨C Thanks for the additional pdf!
-- Bruce Varner
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Gman
Sent: Friday,
April 17, 2020, 10:29 AM
Subject:
[atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing
Attachment
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The Miller Falls knock-off is not completely done.? I now need to
learn how to small part heat treat, so I can harden the area of
the jaws..........................
--
Bruce Varner
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Interesting discourse. When I did my first pulley ~20 years ago,
I didn't have many resources for asking questions, so I just went
with a single tool with just under 30* point. I basically plunged
straight in until it complained and then started working down the
sides until it was deep and wide enough. Then I just cleaned up
the edges to final size. It was only a 2 step motor pulley, but I
learned a lot. As to form tools, they work pretty well if you can
spin the work fast enough and can jog side to side so it isn't
cutting everything at once. I use a piece of wood planer blade to
grind the profile on and then braze it to a 1/2" square bar at
about a 3* angle and mount it in the QCTP. Of course I did this
before somebody told me I couldn't do it :)
Gman
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?
Thanks
to all for the info on the types, sizes, & locations
for aluminum (& Cast Iron) to do the job.? It will be
an interesting project.
John
WIlshusen ¨C Thank you very much for the pdf!?
Just the kind of thing I need.
Guenther
Paul ¨C (And the others after him who responded
to the tool grinding statement) Unfortunately I am new to
machining.? I have made & ground 2 or 3 of my common
facing & parting tools.? They have worked out good.?
But, I am lacking in knowledge of grinding different
tools, particularly form tools.? Not to mention that I am
unsure how large a surface cutting area I can safely use
on my lathe with a form tool? (Craftsman 12¡± #101.07403)?
Seems like a can easily get my lathe to bog if hogging out
too much metal at once.? Then gratefully jmartin957
comes along & adds that I should be using facing &
parting tools for the pulley job.? I kind of understand
that, but it leads to more questions.
1)
Any specific suggestions on good YouTube videos or other
instructional documentation on cutting all types of
tools?? I have looked at many.? Some make sense, some not.
2)
jmartin957, are you just saying that say
the normal facing (left or right) tool is used, just
ground at much different angles to accommodate the area to
which you need access?
3)
I am also specifically interested in any knowledge of what
should just not be attempted on my particular lathe?? Like
form tools.? Example would be let¡¯s say a 90 degree form
tool.? One where it would cut a full 90 degrees or ? of a
ball.? Not talking this project, but others.?
Instinctively guess that something that radical would be
way too much for my lathe.? Would a larger ? or 1 HP motor
help or would that just as likely break something as
help?? My lathe currently has what I believe to be the
original ? HP motor.
I
cannot apprentice with anyone so as to watch them and
learn.? So I am stuck with finding what I can on the
internet, which as you know is not always correct
information¡¡¡¡
I know
this is old hat to most, but important to me.? I have the
luxury of being old (retired) and in no hurry.? So, while
I am not trying to learn the trade for pay, I am doing
something better.? Learning because I just want to and
enjoy it¡¡¡¡..
--
Bruce Varner
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
That _MakingV-BeltPulleys file is great, I don't even need a pulley but if I did that would show me where to start! I'll save it somewhere I hope I can find it if I need it. Actually I "could" use some crowned pulleys. I"ll probable just knock the radius off a square pulley with a file.
Ralph
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
The Miller Falls knock-off is not completely done.? I now need to learn how to small part heat treat, so I can harden the area of the jaws..........................
--
Bruce Varner
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
??? ??? at $2,800.00 I see a government contract in yer future .
keep up the good work
??? ??? animal
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Thanks for the
nice comments about the hand vise.? No production, at my rate of
speed & at my hourly wage before retiring, I would have to
charge about $2,800 per vise. Ha Ha!? I little too much, don¡¯t
you think?
Could not find
a drawing.? Found one image online where a person had placed a
rule beside there vise.? I just extrapolated from that.
Used the lathe,
the milling attachment, the drill press, & the belt sander.?
Could not use anything else because that is all I have¡¡¡¡.
Jmartin957
¨C Thanks for the feedback about creating tools.? I figured it
would boil down to experimentation.? I bought a couple of sets
of different size tool blanks, just have not started playing
with them yet¡¡¡¡
--
Bruce Varner
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Thanks for the nice comments about the hand vise.? No production, at my rate of speed & at my hourly wage before retiring, I would have to charge about $2,800 per vise. Ha Ha!? I little too much, don¡¯t you think?
Could not find a drawing.? Found one image online where a person had placed a rule beside there vise.? I just extrapolated from that.
Used the lathe, the milling attachment, the drill press, & the belt sander.? Could not use anything else because that is all I have¡¡¡¡.
Jmartin957 ¨C Thanks for the feedback about creating tools.? I figured it would boil down to experimentation.? I bought a couple of sets of different size tool blanks, just have not started playing with them yet¡¡¡¡
-- Bruce Varner
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Animal, I probably broke all the rules of good machining when I made mine, which is also why it probably took me so long to make. ?Remember, I was working on a 618, so start from there.
I started with a chunk of 3¡± round stock. ?Turned the basic diameters out for the two pulleys, and a smaller part on one side where the set screw would go. ?Then I bored a half inch hole straight through and mounted the thing to an arbor (home made from a piece of half inch drill rod that i put a slight taper on. ?It took a little finagling to get it where i could press it on and still get it to hold. ?I discovered later that super glue would have been helpful. ?Live and learn I reckon)
FWIW, I had to use the arbor in order to get the pulley set far enough away from the chuck that I could cut the insides of the left pulley flanges using the compound.
After getting it set up on the arbor, I used my parting blade to cut the majority of the groove to finish depth. ?Then i switched to using right/left hand 15 degree insert holders (I¡¯m using the set from Little Machine Shop, on a 0XA wedge-type tool post). ?I found that the bottom of the pulley grooves were just barely wide enough that I could get all the way to the inside corner if I carefully set the tool angle. ?It probably was not perfectly aligned for cutting like the textbook would suggest, but it worked. ?I took very light cuts down the angled faces until I got to the full depth, then switched to the other side and repeated the process. ?The hardest part to cut was the inside face of the smaller diameter pulley ¡ª the outer edge of the inside face of the larger pulley ended up very close to the compound so it required watching closely. ?I am not sure I could have made it fit if it had been more than a two step pulley; that¡¯s something different in your case so you might need to do a bit of fiddling to find a way to get the tool cutting edge where you want it without the rest of the pulley interfering with the cut.
I would have preferred to use the tool that was diagrammed in the article I linked, but I did not have a grinder at the time so had no practical way to cut a blank to shape. ?That angled tool in the article would have made it a whole lot easier, that I can assure you.
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On Apr 17, 2020, at 12:42 PM, mike allen <animal@...> wrote:
?
??? ??? I'm hep to not usiin a form tool . I made a pulley a few
years back & it took some time gettin the cutter right for
doin the facing . I have since lost that tool & for the? life
of me I can't remember the profile that I ended
??? ??? up with that worked . I did start with? parting tool
& when I found a facing grind that worked I ground both side
of the bit for right & left . that tool bit is either in some
dark corner that? can't see or may have fallen into
??? ??? the swarf bucket . which brings us to today . I need to
make a replacement 4 groove pulley for my big enco mill/drill
& I don't want to **** it up simple as that . so that's why I
asked for some insight
??? ??? animal
Guenther¡¯s reply may have seemed harsh, but I don¡¯t think he was
far off target.
I¡¯d have instead said that any decent machinist - or anyone
with experience running one of these light lathes - will already
know how to grind the tools to cut the pulley grooves. Because
the key word here is tools - not tool.
Trying to turn grooves for normal sized V belts on lathes
like these doesn¡¯t work very well with form tools. ?Instead, you
need several different tools - the ones you use every day. ?A
parting tool to cut the depth of the groove, and to cut the
bottom to width. ?A facing tool to cut the left side of the
groove, with the compound feeding at the proper angle. ?And then
the mirror image of that facing tool to cut the right side of
the groove, with the compound set the other way. ?No pics should
be needed.
Not only would a form tool make no sense because of the
likelihood of chatter, but you¡¯d need different form tools for
each pulley diameter. ?The angles are different for each
diameter.
On Apr 17, 2020, at 12:44 AM, Bill in
OKC too via groups.io <wmrmeyers@...>
wrote:
?
Guenther, most of us here are amateurs. Not
professional machinists. That is quite enough. If you do
not have something constructive to say, do not say
anything at all.
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)
Any decent machinist should
know how to grind cutting tool for his
machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM
EDT, mike allen <animal@...>
wrote:
??? ??? any one have any pic's of the
tool profile they use for makin
pulleys ?
??? ??? animal
On
4/16/2020 2:46 PM, Dave Matticks
wrote:
John,
Nice article! Procedure look good,
I'd use different tooling but same
idea.
Not going to make one for this
episode but I have made a pulley or 2
in the past.
Trued up a couple die cast ones as
well, some are near useless out of the
box.
Not only made in USA but 2 miles
from my house!
Dave
On April 16,
2020 at 1:02 PM "John Wilshusen via
groups.io" <wilshusen@...>
wrote:
Bruce,
One additional thing to add to
your literature pile. ?I read and
applied what i learned in this
write-up when I was making the motor
pulley for my lathe. ?You might find
it useful as well.
?
?
Good luck!
John
?
So you're planning to
create a pulley, eh? I'd
really like to see a video of
that!?
Most of us have to
settle for fabricating
things.
On Wed, Apr 15,
2020, 7:00 PM Dave Matticks
< dpm100@...>
wrote:
Bruce,
Yeah, 7075 is
expensive but 6061 would
work better than fine.
7075 just cuts so nice.
Going cast iron is
not going to save any
money regardless of how
you do it unless you
pour it yourself!
They don't carry
round 7075 but you might
get a good price on 6061
from Clinton Aluminum.
McMaster Carr can
surprise you sometimes.
Alro sucks price
wise!
Have fun,
Dave
On April 15, 2020 at
7:46 AM exerpd+groupsio@...
wrote:
Thanks all!
?
Glenn N ¨C Yes,
Robert Downs put this
file in the files
section.
?
Brad ¨C How can 3-D
printing & casting
& machining be
less expensive than
the piece of aluminum?
?
Kay ¨C Thanks for
the Speedy Metals
link.
?
Robert Downs /
Guenther Paul ¨C Thanks
for the suggestions on
how to machine it more
easily.
?
Kay Davis / Dave
Matticks ¨C 7075 seems
much more expensive
than the other
aluminum choices.
?
Craig Treleaven ¨C
Thanks for filling me
in on the edits I make
causing problems.? I
get the update only
daily, so do not have
this problem.? The
only times I do this
instead of a separate
post, is when I have
grammar or formatting
errors.? It seems like
every group has
different formatting
defaults.? And in this
group you cannot see
what the final
formatting is going to
look like until AFTER
you post.? Will try to
be more careful.
?
So everyone
understands, it may be
a while before I
create this aluminum
pulley.? I will update
everyone when I
complete this or have
questions.? Prior to
November, I did not
even own a lathe, so I
am new to this &
still learning.? What
might be easy to some,
is new to me.? I am
going to a) wait a
little while to see if
I can locate an OEM
60-29 pulley.? b) If
not, then I will do
the aluminum pulley
machining.? As was
discussed early in
this thread, I do not
use the drill press
constantly & it is
working as is.? So
this is not an
immediate necessity.
--
Bruce Varner
?
?
?
?
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
One thing you could do to get the shape you want is use forged carbon steel tooling. That's really, REALLY old-school. ;)
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 Friday, April 17, 2020, 12:01:24 PM CDT, mike allen <animal@...> wrote:
??? ??? thanks Bill , I have that been thinking bout making one , got to see if I have any stock that will fit the tool holder ??? ??? animal
On 4/17/2020 9:39 AM, Bill in OKC too via groups.io wrote:
Mike, what you need to see is in the attachment to this email from John Wilshusen. /g/atlas-craftsman/message/107056 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 Friday, April 17, 2020, 11:26:55 AM CDT, mike allen <animal@...> wrote:
??? ??? well I guess I'm not decent , or at least a decent machinist ??? ??? animal
On 4/16/2020 9:26 PM, Guenther Paul wrote:
Any decent machinist should know how to grind cutting tool for his machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM EDT, mike allen <animal@...> wrote:
??? ??? any one have any pic's of the tool profile they use for makin pulleys ? ??? ??? animal
On 4/16/2020 2:46 PM, Dave Matticks wrote:
John, Nice article! Procedure look good, I'd use different tooling but same idea. Not going to make one for this episode but I have made a pulley or 2 in the past. Trued up a couple die cast ones as well, some are near useless out of the box. Not only made in USA but 2 miles from my house!
Dave
On April 16, 2020 at 1:02 PM "John Wilshusen via groups.io" <wilshusen@...> wrote:
Bruce, One additional thing to add to your literature pile. ?I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. ?You might find it useful as well.
?
?
Good luck! John ?
So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things. On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote: Bruce, Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice. Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself! They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum. McMaster Carr can surprise you sometimes. Alro sucks price wise! Have fun,
Dave On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all! ? Glenn N ¨C Yes, Robert Downs put this file in the files section. ? Brad ¨C How can 3-D printing & casting & machining be less expensive than the piece of aluminum? ? Kay ¨C Thanks for the Speedy Metals link. ? Robert Downs / Guenther Paul ¨C Thanks for the suggestions on how to machine it more easily. ? Kay Davis / Dave Matticks ¨C 7075 seems much more expensive than the other aluminum choices. ? Craig Treleaven ¨C Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful. ? So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
? ?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
??? ??? thanks Bill , I have that been thinking bout making one ,
got to see if I have any stock that will fit the tool holder
??? ??? animal
On 4/17/2020 9:39 AM, Bill in OKC too
via groups.io wrote:
toggle quoted message
Show quoted text
Mike, what you need to see is in the attachment to this
email from John Wilshusen.
/g/atlas-craftsman/message/107056
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 Friday, April 17, 2020, 11:26:55 AM CDT, mike allen
<animal@...> wrote:
??? ??? well I guess I'm not decent , or at least a
decent machinist
??? ??? animal
On 4/16/2020
9:26 PM, Guenther Paul wrote:
Any decent machinist should know how
to grind cutting tool for his machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM EDT,
mike allen <animal@...>
wrote:
??? ??? any one have any pic's of the tool
profile they use for makin pulleys ?
??? ??? animal
On
4/16/2020 2:46 PM, Dave Matticks wrote:
John,
Nice article! Procedure look good, I'd
use different tooling but same idea.
Not going to make one for this episode
but I have made a pulley or 2 in the past.
Trued up a couple die cast ones as well,
some are near useless out of the box.
Not only made in USA but 2 miles from my
house!
Dave
On April 16, 2020 at
1:02 PM "John Wilshusen via groups.io" <wilshusen@...>
wrote:
Bruce,
One additional thing to add to your
literature pile. ?I read and applied what
i learned in this write-up when I was
making the motor pulley for my lathe. ?You
might find it useful as well.
?
?
Good luck!
John
?
So you're planning to create a
pulley, eh? I'd really like to see a
video of that!?
Most of us have to settle for
fabricating things.
On Wed, Apr 15, 2020,
7:00 PM Dave Matticks < dpm100@...>
wrote:
Bruce,
Yeah, 7075 is expensive
but 6061 would work better
than fine. 7075 just cuts so
nice.
Going cast iron is not
going to save any money
regardless of how you do it
unless you pour it yourself!
They don't carry round
7075 but you might get a good
price on 6061 from Clinton
Aluminum.
McMaster Carr can surprise
you sometimes.
Alro sucks price wise!
Have fun,
Dave
On
April 15, 2020 at 7:46 AM exerpd+groupsio@...
wrote:
Thanks
all!
?
Glenn
N ¨C Yes, Robert Downs put
this file in the files
section.
?
Brad
¨C How can 3-D printing &
casting & machining be
less expensive than the
piece of aluminum?
?
Kay ¨C
Thanks for the Speedy Metals
link.
?
Robert
Downs / Guenther Paul ¨C
Thanks for the suggestions
on how to machine it more
easily.
?
Kay
Davis / Dave Matticks ¨C 7075
seems much more expensive
than the other aluminum
choices.
?
Craig
Treleaven ¨C Thanks for
filling me in on the edits I
make causing problems.? I
get the update only daily,
so do not have this
problem.? The only times I
do this instead of a
separate post, is when I
have grammar or formatting
errors.? It seems like every
group has different
formatting defaults.? And in
this group you cannot see
what the final formatting is
going to look like until
AFTER you post.? Will try to
be more careful.
?
So
everyone understands, it may
be a while before I create
this aluminum pulley.? I
will update everyone when I
complete this or have
questions.? Prior to
November, I did not even own
a lathe, so I am new to this
& still learning.? What
might be easy to some, is
new to me.? I am going to a)
wait a little while to see
if I can locate an OEM 60-29
pulley.? b) If not, then I
will do the aluminum pulley
machining.? As was discussed
early in this thread, I do
not use the drill press
constantly & it is
working as is.? So this is
not an immediate necessity.
--
Bruce Varner
?
?
?
?
|
Bill in OKC too
Brian Cayer
John Wilshusen