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Posted by woodworker88 on July 3, 2008, 2:43 am
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I just bought a ~1918 Wade 8A precision toolmakers lathe, and it uses
a Wade #8 collet, which is identical to a 5C collet except for a
slightly longer length and a different (stronger) buttress thread.
They are quite similar, but the Wade collets sell for 50+ dollars
each, whereas good 5C collets can be had for just a few dollars a
collet in complete sets. All I need is a new drawtube and handwheel
assembly, since the lathe already has a spindle nose with the
appropriate taper. Does anybody know a source for premade 5C
drawtubes that can be cut down to size and fitted with a handwheel?
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Posted by Jim Wilkins on July 3, 2008, 6:56 am
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>...Does anybody know a source for premade 5C
> drawtubes that can be cut down to size and fitted with a handwheel?
A longer drawtube can be adapted without cutting it with a shaft
collar, roller thrust bearing and shop-made conical centering
adapter.
The one I adapted measures 1.365" OD but a split 1-3/8" collar fits
fine and has never slipped. The thrust bearing cost about $5.
Originally it had plain brass thrust washers and worked reasonably
well if I didn't take heavy cuts.
Here is another version:
http://www.kinzers.com/don/MachineTools/collet_closer/
If you do this to a used drawtube you can remachine either end if it
wears out or breaks.
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Posted by Gunner on July 3, 2008, 8:24 am
Please log in for more thread options On Wed, 2 Jul 2008 23:43:06 -0700 (PDT), woodworker88
>I just bought a ~1918 Wade 8A precision toolmakers lathe, and it uses
>a Wade #8 collet, which is identical to a 5C collet except for a
>slightly longer length and a different (stronger) buttress thread.
>They are quite similar, but the Wade collets sell for 50+ dollars
>each, whereas good 5C collets can be had for just a few dollars a
>collet in complete sets. All I need is a new drawtube and handwheel
>assembly, since the lathe already has a spindle nose with the
>appropriate taper. Does anybody know a source for premade 5C
>drawtubes that can be cut down to size and fitted with a handwheel?
Check with your local used machine tool dealers, they often have
broken collet closers and bits and pieces.
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Posted by woodworker88 on July 4, 2008, 12:42 pm
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> Check with your local used machine tool dealers, they often have
> broken collet closers and bits and pieces.
Alright, sounds good.
I don't have a problem with building the handwheel assembly, I just
don't want to do the ID threading on the collet drawtube itself.
Looks like I should be able to find a used or broken part that I can
adapt.
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Posted by Jim Wilkins on July 4, 2008, 1:29 pm
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> I don't have a problem with building the handwheel assembly, I just
> don't want to do the ID threading on the collet drawtube itself.
> Looks like I should be able to find a used or broken part that I can
> adapt.
It's an easy thread to cut, 1-1/4" - 20. The opening is large enough
to see inside which helps a lot.
The actual size may be slightly under 1.250 but you can keep cutting
until all of your collets fit. Several of mine measured 1.235 to
1.243.
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> drawtubes that can be cut down to size and fitted with a handwheel?