Re: [CAD_CAM_EDM_DRO] Stepper motors

Doug,

I may stay with the ones that I have. I wish they had larger set screws.
They seem to work fine. The only problem that I had was with vibrations
causing the set screws to come loose. I put them back with some blue
loc-tite. As you may know, I am creating a set of plans for my cnc router.
I want it to have the best components that I can find.

I have started on my next machine, this one will have a process area of 3'
by 2'. I bought the aluminum from an extruder and saved about 30%.

Bob Campbell

----- Original Message -----
From: Doug Harrison <prototype@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Friday, August 18, 2000 7:35 PM
Subject: Re: [CAD_CAM_EDM_DRO] Stepper motors


> I had a similar problem. The shafts on most of the lower priced step
motors
> I find are shorter than needed for most production CNC knee mills. I had
to
> use one inch pulleys on the motors to get correct belt alignment.
>
> The wider pulleys have more inertia which affects acceleration,
particularly
> if they are steel. I had to decrease the ramp rate after installing them.
>
> Doug Harrison
>
>
> ----- Original Message -----
> From: Bob Campbell <bob@...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: Friday, August 18, 2000 8:14 PM
> Subject: [CAD_CAM_EDM_DRO] Stepper motors
>
>
> > Does anyone know if you can get stepper motors with longer shafts?
> >
> > I wouls like to put some wider pulleys on my moters, but I do nor want
> them
> > to extend past the end of the shaft.
> >
> > Bob Campbell
> >
> >
> >
> >
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>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
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> bill,
> List Manager