Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
??? ??? Good deal , sometimes yer the windshield , sometimes yer
the bug .
??? animal
On 1/19/24 3:18 PM, Rick Kruger wrote:
toggle quoted message
Show quoted text
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote:
Good possibility. A
little WD-40 or some brake cleaner might free it up.?
?
Bill in OKC
?
William R. Meyers, MSgt, USAF(Ret.)
?
?
On Friday, January 19, 2024 at 02:20:51 PM CST,
perry7122 <perry7122@...> wrote: ?
?? ...snip...
?
? ? With this ball not exiting the
hole when taken off the shaft, I am wondering if
it is being retained by dried grease in the hole?
?
Well, color me embarressed...? Thanks for pushing on this guys...
Didn't look very dirty from the outside...
A bit of Kroil and Q-tips freed it.? Cleaned the pocket, good bit
of crude in there.
I tried to lose the ball twice and nearly succeeded, had it neatly
in my hand, then dropped it.? Looked for it for a while but gave
up and fished a replacement one out of my supply of steel balls
and put it back together.? Still came out.? Spent more time
looking for the original, on the floor with the flashlight, like
the CSI guys.? Voila!
Getting it back on the spindle was a task.? Both the key and ball
liked to escape and hide.
All back together, with some improvement.? It doesn't slip out in
the second highest speed now, but does still at the highest.? I'll
try it with one of the new springs when the order from eBay
arrives.? I've located on spring on McM-C that is close the
original spring (1/8" OD, 3/8" length, 0.021" wire dia.) but is
longer (1") so I can trim to some lengths greater than the stock
spring.
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
Overhauling machine tools can be a big part of the fun, or it can be
a real drag.? I've done a few also.? I bought a couple of the asian
"mini-" machines new, but the newest since then is my 1986 Select
knee mill. It was well enough used but did not require any remedial
work.? The one that took the most work was a pre-WWII Rivett 1020,
two years of extensive repairs, remanufacturing of parts and even
some castings/machining, but it was worth it.? When I moved 7 yrs
ago, it got toppled on its face, so did not make the move.? While it
was getting repaired, I came into a 1946 motor generator Monarch
10EE with a Newall DRO that had recently been fully restored, so all
I had to do was get it here and set up.? I have and have had DROs on
mills but never a lathe.? Pretty sweet.?
Rick
On 1/19/2024 5:05 PM, Bill in OKC too
via groups.io wrote:
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Show quoted text
The only machine tool I have here that was new or
well-overhauled when I got it is my Atlas TH42, and it
needed a good hosing down with WD-40. :) I have overhauled a
couple more, and one of them needs to be overhauled again.
:(
Someday I'd like to buy something that is ready to work
as soon as it lands on the bench. Not holding my breath
waiting. ;)
Bill in OKC?
William
R. Meyers, MSgt, USAF(Ret.)
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
Congradulations,?
On Friday, January 19, 2024 at 06:18:50 PM EST, Rick Kruger <krugerr@...> wrote:
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote:
Good possibility. A little WD-40 or some brake cleaner might free it up.?
?
Bill in OKC
?
William R. Meyers, MSgt, USAF(Ret.)
?
?
On Friday, January 19, 2024 at 02:20:51 PM CST, perry7122 <perry7122@...> wrote:
?
?? ...snip...
?
? ? With this ball not exiting the hole when taken off the shaft, I am wondering if it is being retained by dried grease in the hole?
?
Well, color me embarressed...? Thanks for pushing on this guys... Didn't look very dirty from the outside... A bit of Kroil and Q-tips freed it.? Cleaned the pocket, good bit of crude in there. I tried to lose the ball twice and nearly succeeded, had it neatly in my hand, then dropped it.? Looked for it for a while but gave up and fished a replacement one out of my supply of steel balls and put it back together.? Still came out.? Spent more time looking for the original, on the floor with the flashlight, like the CSI guys.? Voila! Getting it back on the spindle was a task.? Both the key and ball liked to escape and hide. All back together, with some improvement.? It doesn't slip out in the second highest speed now, but does still at the highest.? I'll try it with one of the new springs when the order from eBay arrives.? I've located on spring on McM-C that is close the original spring (1/8" OD, 3/8" length, 0.021" wire dia.) but is longer (1") so I can trim to some lengths greater than the stock spring.
|
Re: And now.......reversible
David, how are you seeing "The motor wires connect to both the 3-6 pair and the 1-4 pair, but with reversed polarity on the 1-4 pair."?
You are correct in that that would work but the diagram does not show it.
Ralph
On Fri, Jan 19, 2024 at 1:16?PM David Beierl < dbeierl@...> wrote: "Bill, isn't your wiring diagram missing some wires to terminal 1 and 4? I don't see how throwing the switch would reverse a motor."
The motor wires connect to both the 3-6 pair and the 1-4 pair, but with reversed polarity on the 1-4 pair.? This of course only works on DC motors that reverse with reversed polarity.
Note that it would work the same if the motor were connected to the 2-5 pair and the battery to the 3-6 and 1-4 pairs.
Yrs, David
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
The only machine tool I have here that was new or well-overhauled when I got it is my Atlas TH42, and it needed a good hosing down with WD-40. :) I have overhauled a couple more, and one of them needs to be overhauled again. :(
Someday I'd like to buy something that is ready to work as soon as it lands on the bench. Not holding my breath waiting. ;)
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, January 19, 2024 at 05:18:35 PM CST, Rick Kruger <krugerr@...> wrote:
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote:
Good possibility. A little WD-40 or some brake cleaner might free it up.?
?
Bill in OKC
?
William R. Meyers, MSgt, USAF(Ret.)
?
?
On Friday, January 19, 2024 at 02:20:51 PM CST, perry7122 <perry7122@...> wrote:
?
?? ...snip...
?
? ? With this ball not exiting the hole when taken off the shaft, I am wondering if it is being retained by dried grease in the hole?
?
Well, color me embarressed...? Thanks for pushing on this guys... Didn't look very dirty from the outside... A bit of Kroil and Q-tips freed it.? Cleaned the pocket, good bit of crude in there. I tried to lose the ball twice and nearly succeeded, had it neatly in my hand, then dropped it.? Looked for it for a while but gave up and fished a replacement one out of my supply of steel balls and put it back together.? Still came out.? Spent more time looking for the original, on the floor with the flashlight, like the CSI guys.? Voila! Getting it back on the spindle was a task.? Both the key and ball liked to escape and hide. All back together, with some improvement.? It doesn't slip out in the second highest speed now, but does still at the highest.? I'll try it with one of the new springs when the order from eBay arrives.? I've located on spring on McM-C that is close the original spring (1/8" OD, 3/8" length, 0.021" wire dia.) but is longer (1") so I can trim to some lengths greater than the stock spring.
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote:
Good possibility. A little WD-40 or some brake cleaner might free it up.?
?
Bill in OKC
?
William R. Meyers, MSgt, USAF(Ret.)
?
?
On Friday, January 19, 2024 at 02:20:51 PM CST, perry7122 <perry7122@...> wrote:
?
?? ...snip...
?
? ? With this ball not exiting the hole when taken off the shaft, I am wondering if it is being retained by dried grease in the hole?
?
Well, color me embarressed...? Thanks for pushing on this guys... Didn't look very dirty from the outside... A bit of Kroil and Q-tips freed it.? Cleaned the pocket, good bit of crude in there. I tried to lose the ball twice and nearly succeeded, had it neatly in my hand, then dropped it.? Looked for it for a while but gave up and fished a replacement one out of my supply of steel balls and put it back together.? Still came out.? Spent more time looking for the original, on the floor with the flashlight, like the CSI guys.? Voila! Getting it back on the spindle was a task.? Both the key and ball liked to escape and hide. All back together, with some improvement.? It doesn't slip out in the second highest speed now, but does still at the highest.? I'll try it with one of the new springs when the order from eBay arrives.? I've located on spring on McM-C that is close the original spring (1/8" OD, 3/8" length, 0.021" wire dia.) but is longer (1") so I can trim to some lengths greater than the stock spring.
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
Good possibility. A little WD-40 or some brake cleaner might free it up.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, January 19, 2024 at 02:20:51 PM CST, perry7122 <perry7122@...> wrote:
? ? I have been known to engineer things before.
? ? With this ball not exiting the hole when taken off the shaft, I am wondering if it is being retained by dried grease in the hole?
On Friday, January 19, 2024 at 02:03:13 PM EST, mike allen <animal@...> wrote:
??? ??? Every time this subject comes I keep going back to this .
??? animal
On 1/19/24 4:25 AM, Brian Roberts
wrote:
Having worked many years in a production / prototyping machine
shop I am reminded of dealing with "the engineers"!
If a ten cent/ten minute solution is a possibility....well....we
must first try the hundred dollar/ two week stab in the dark!
Why the resistance to replacing the original spring with one that
approximates the original strength...or one that (for testing
purposes) is even a bit stronger?
My comment is meant to be a good-natured (but serious) question.?
?LOL
|
Re: Bill , This ones free , bring a trailer
I've got a cousin in Reno I've not seen in 50 years, but I don't have anything I could bet on making the trip even one-way, and nothing to haul it in, either. :(
Pretty sure I couldn't shoehorn it into my space, either.?
Dang it!
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, January 19, 2024 at 02:14:57 PM CST, perry7122 <perry7122@...> wrote:
? ?May be a great deal if you happen to have a rigger in the family.
On Friday, January 19, 2024 at 03:11:10 PM EST, mike allen <animal@...> wrote:
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
? ? I have been known to engineer things before.
? ? With this ball not exiting the hole when taken off the shaft, I am wondering if it is being retained by dried grease in the hole?
On Friday, January 19, 2024 at 02:03:13 PM EST, mike allen <animal@...> wrote:
??? ??? Every time this subject comes I keep going back to this .
??? animal
On 1/19/24 4:25 AM, Brian Roberts
wrote:
Having worked many years in a production / prototyping machine
shop I am reminded of dealing with "the engineers"!
If a ten cent/ten minute solution is a possibility....well....we
must first try the hundred dollar/ two week stab in the dark!
Why the resistance to replacing the original spring with one that
approximates the original strength...or one that (for testing
purposes) is even a bit stronger?
My comment is meant to be a good-natured (but serious) question.?
?LOL
|
Re: Bill , This ones free , bring a trailer
? ?May be a great deal if you happen to have a rigger in the family.
On Friday, January 19, 2024 at 03:11:10 PM EST, mike allen <animal@...> wrote:
|
Bill , This ones free , bring a trailer
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
??? ??? Every time this subject comes I keep going back to this .
??? animal
On 1/19/24 4:25 AM, Brian Roberts
wrote:
toggle quoted message
Show quoted text
Having worked many years in a production / prototyping machine
shop I am reminded of dealing with "the engineers"!
If a ten cent/ten minute solution is a possibility....well....we
must first try the hundred dollar/ two week stab in the dark!
Why the resistance to replacing the original spring with one that
approximates the original strength...or one that (for testing
purposes) is even a bit stronger?
My comment is meant to be a good-natured (but serious) question.?
?LOL
|
Re: And now.......reversible
"Bill, isn't your wiring diagram missing some wires to terminal 1 and 4? I don't see how throwing the switch would reverse a motor."
The motor wires connect to both the 3-6 pair and the 1-4 pair, but with reversed polarity on the 1-4 pair.? This of course only works on DC motors that reverse with reversed polarity.
Note that it would work the same if the motor were connected to the 2-5 pair and the battery to the 3-6 and 1-4 pairs.
Yrs, David
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
It is a good question and thanks for the link, I've ordered two.?
No worries on the fair comment/question, Brian.? After having
searched on this issue on multiple forums, I've seen only comments
about how the ball and spring are not captured and can fly out and
be lost if not careful when removing the coupler from the spindle
and how they have to be depressed into the hole, from the ID, when
putting the coupler onto the spindle.? That is not the case with
this coupler.? On this one, the ball and spring are captured and do
not come out on their own.? If it were a matter of just letting (or
getting) the ball and spring from the ID, I'd have already replaced
the spring and tried a stronger one.?
To get them out on this coupler, I think it will take drilling out
from the outside. Until I got the factory drawing, I was uncertain
if there is enough meat there to take a set screw to back up
replacements.? Now that I have the drawing, I think there is more
than enough, even for trying a longer and/or stiffer spring.? With
the replacements ordered, that is an option and it would be easy to
source a different spring.?
As mentioned above, it looks viable to add a second detent ball into
the open hole on the other side.? I've ordered some of the set screw
detents, in different forces, which will get here in a couple days,
so I'll likely try those in the other side first to see if it is
enough to keep the coupler from slipping out.? If not, I can either
replace the original spring, as above, or take those out and replace
with another set screw detent.
If none of that works, I have what is needed to make a replacement
coupler out of aluminum and find out if positioning the detents to
seat in the bottom of the grooves does any better.?
If you see a different/better path, please put it out there, also in
a serious and good-natured way???
Rick
On 1/19/2024 6:15 AM, Bill in OKC too
via groups.io wrote:
toggle quoted message
Show quoted text
It's a good question.??
about $18 including shipping on eBay. Believe it's the
same seller who sold me the replacement felts for my
headstock, and the wipers for the bed.?
...snip...
On Friday, January 19, 2024 at 06:25:09 AM CST, Brian
Roberts <bri7rob@...> wrote:
...snip...
Why the resistance to replacing the original spring
with one that approximates the original strength...or
one that (for testing purposes) is even a bit
stronger?
My comment is meant to be a good-natured (but serious)
question.? ?LOL
_.
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
It's a good question.?? https://www.ebay.com/itm/184035334465
about $18 including shipping on eBay. Believe it's the same seller who sold me the replacement felts for my headstock, and the wipers for the bed.?
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, January 19, 2024 at 06:25:09 AM CST, Brian Roberts <bri7rob@...> wrote:
Having worked many years in a production / prototyping machine shop I am reminded of dealing with "the engineers"!
If a ten cent/ten minute solution is a possibility....well....we must first try the hundred dollar/ two week stab in the dark!
Why the resistance to replacing the original spring with one that approximates the original strength...or one that (for testing purposes) is even a bit stronger?
My comment is meant to be a good-natured (but serious) question.? ?LOL
|
Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
Having worked many years in a production / prototyping machine shop I am reminded of dealing with "the engineers"!
If a ten cent/ten minute solution is a possibility....well....we must first try the hundred dollar/ two week stab in the dark!
Why the resistance to replacing the original spring with one that approximates the original strength...or one that (for testing purposes) is even a bit stronger?
My comment is meant to be a good-natured (but serious) question.? ?LOL
|
Re: And now.......reversible
??? I think so , sumtin like this
sorry for the mondo link it was the first one I pulled up?
animal
On 1/18/24 8:45 AM, Bill in OKC too via
groups.io wrote:
toggle quoted message
Show quoted text
Just realized I have a drawing of a switch wired that
way. It just shows the switch by itself. I think this is
much more useful to my poor tired and mich-abused brain.
THANK YOU!!!
Bill in OKC?
William
R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience.
Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.
Physics doesn't care about your
schedule.
The only reason I know anything is
because I've done it wrong enough times to START
to know better.
Expect
in one hand, expectorate in the other. See
which one gets full first.
On Thursday, January 18, 2024 at 09:21:02 AM CST, Bill
Pendergrass <rzbill@...> wrote:
Here is a stock image? of how to wire a DPDT switch
to reverse polarity on 2 wires.? The battery and motor
shown are not relevant.? The diagram shows how 2 wires
can be flipped via wiring the switch in an X pattern.
|
Re: And now.......reversible
Bill, isn't your wiring diagram missing some wires to terminal 1 and 4? I don't see how throwing the switch would reverse a motor.
Ralph
On Thu, Jan 18, 2024 at 3:24?PM mike allen < animal@...> wrote:
??? ??? Pretty cool , thanks . I have one of the standard 6x48
with a 9" disc & its my go too when I start to sharpen a new
HSS lathe tool .
??? animal
On 1/18/24 12:08 PM, Rick Kruger wrote:
I do sharpening of various blade tools, using a Tormek T8.? Belt
grinder is a modified Viel, 1x42.? I use the Viel mainly as a
heavy metal remover, then move to the T8 for bevel refinement and
deburring.? I usually am using a Tormek jig for holding the work,
for angle control, positioning and blade control.? Depending on
the need, the Viel might be in a vertical (standard) or horizontal
position and sometimes I want the belt going away from the work
(edge trailing), sometimes coming into it (edge leading).?
Here it is horizontal and I may run it in either direction.? The
variable speed is extremely important for managing heat build up,
which can be very destructive to blade temper, etc.? At very slows
speed and shallow angle, there is minimal risk of the blade
catching the knife edge.? Grinding pressure management is also
important.?
This is the Tormek drill bit jig where the belt would be running
downward into the work.? But... the part being ground is not a
drill.? I adapted it to hold a tool using in bamboo rod planing to
grind a facet.?
On 1/18/2024 11:44 AM, mike allen
wrote:
Whats the purpose of reversing the motor on the belt grinder
?
??? thanks
|
Re: And now.......reversible
??? ??? Pretty cool , thanks . I have one of the standard 6x48
with a 9" disc & its my go too when I start to sharpen a new
HSS lathe tool .
??? animal
On 1/18/24 12:08 PM, Rick Kruger wrote:
toggle quoted message
Show quoted text
I do sharpening of various blade tools, using a Tormek T8.? Belt
grinder is a modified Viel, 1x42.? I use the Viel mainly as a
heavy metal remover, then move to the T8 for bevel refinement and
deburring.? I usually am using a Tormek jig for holding the work,
for angle control, positioning and blade control.? Depending on
the need, the Viel might be in a vertical (standard) or horizontal
position and sometimes I want the belt going away from the work
(edge trailing), sometimes coming into it (edge leading).?
Here it is horizontal and I may run it in either direction.? The
variable speed is extremely important for managing heat build up,
which can be very destructive to blade temper, etc.? At very slows
speed and shallow angle, there is minimal risk of the blade
catching the knife edge.? Grinding pressure management is also
important.?
This is the Tormek drill bit jig where the belt would be running
downward into the work.? But... the part being ground is not a
drill.? I adapted it to hold a tool using in bamboo rod planing to
grind a facet.?
On 1/18/2024 11:44 AM, mike allen
wrote:
Whats the purpose of reversing the motor on the belt grinder
?
??? thanks
|
Re: And now.......reversible
I do sharpening of various blade tools, using a Tormek T8.? Belt
grinder is a modified Viel, 1x42.? I use the Viel mainly as a heavy
metal remover, then move to the T8 for bevel refinement and
deburring.? I usually am using a Tormek jig for holding the work,
for angle control, positioning and blade control.? Depending on the
need, the Viel might be in a vertical (standard) or horizontal
position and sometimes I want the belt going away from the work
(edge trailing), sometimes coming into it (edge leading).?
Here it is horizontal and I may run it in either direction.? The
variable speed is extremely important for managing heat build up,
which can be very destructive to blade temper, etc.? At very slows
speed and shallow angle, there is minimal risk of the blade catching
the knife edge.? Grinding pressure management is also important.?
This is the Tormek drill bit jig where the belt would be running
downward into the work.? But... the part being ground is not a
drill.? I adapted it to hold a tool using in bamboo rod planing to
grind a facet.?
On 1/18/2024 11:44 AM, mike allen
wrote:
toggle quoted message
Show quoted text
Whats the purpose of reversing the motor on the belt grinder ?
??? thanks
|
Bill in OKC too