Well honestly it had this interesting style that is basically a 19mm ID
thin walled tube and then there were two large diameter steel donuts with
large setscrews in them. Basically the setscrews would be made to bear down
on two small cylindrical steel bearings that were then tightened like crazy
until they swayed down into the keyways on the ballscrew and motor shafts
taking the thin walled tube with it essentially creating a sort of keywayed
sleeve.  A good design that apparently worked fine but it is a single use
kinda setup and the new motors have a 22mm shaft as I recall so these
cannot be used. They could not be reused anyway so that is why I need some
quality couplers.

   I have actually looked at Mcmaster carr as I usually do but did not see
what I needed.  I actually like the looks of those cut bodied couplers but
I am not too sure of their misalignment ability.  A quality oldham in the
right size should work fine I think....peace

Pete


On Wednesday, February 13, 2013, andy pugh <bodge...@gmail.com> wrote:
> On 13 February 2013 20:48, Pete Matos <petefro...@gmail.com> wrote:
>>    Looking at the board from Mesa I have here I think you guys are right
>> that I should have plenty of IO available and perhaps I should use the
>> individual home switches after all.  I need also  to source some nice
zero
>> backlash 22mm to 19mm  compression style couplers from a USA Source
>
> I am in the UK and even I know that someone is going to say:
> http://www.mcmaster.com/#metric-shaft-couplings/=lgqbwq
>
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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