motor couplers was Re: Helix Angle

Hello,

Paul Jones at CNConabudget.com uses three non-helix slots on 4140
steel. Works well. He did some pretty severe testing at 8degrees
misaligment with good results. I have some of these from him and can
vouch for their quality and usefulness. At ten bucks each, 3 for 25
(last I checked) they're a quick and inexpensive solution...

Ballendo

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "david_margrave"
<david_margrave@y...> wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Terry Owens" <terry@o...>

wrote:

> > Hi,
> >
> > Thank you for the replies but they don't help as everyone came up

with a

> > different answer.
> >
> > What I'm trying to do is cut a 3 start helical slot around an
> aluminium bar
> > to make couplings for stepper motors.
>
> i made life easy for myself and just used a short section of
> automotive heater hose with clamps to make stepper couplings. may

or

> may not work for you.