Re: Nema 23 Brakes for servo or stepper motors

Intersting idea. Now I got to find a supplier who sells these belts
and built some sort of bracket to offset the motor from the ball
screw. Do you have any leads as to where I can buy this?
--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dan Mauch" <dmauch@...>
wrote:

>
> A few weeks ago I built a 3 axis servo system for a guy with one of

the

> Techno Isel routers. We decided that removing the brake and

replacing it

> with a 2/1 ratio timing belt drive would be simpler. If you planned

to use

> G320 servo amps and you wired up the err/res so that any axis that

faulted

> would cause all three to fault could also cause the Z axis to

backspin and

> drop the rotating spindle onto the table. The 2/1 ratio should

prevent the

> backspin.
> Dan Mauch
> low cost stepper and servo motors.
> cases for Gecko drives
> kits and assembled 3-4 axis drives
> www.camtronics-cnc.com
> www.seanet.com/~dmauch
> ----- Original Message -----
> From: "enytned1" <alexkcpr@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, October 26, 2006 4:38 AM
> Subject: [CAD_CAM_EDM_DRO] Re: Nema 23 Brakes for servo or stepper

motors

>
>
> > Screw pitch is 5mm. This is on a Techno isel router. The brake

is

> > engaged when the power is turned off to the machine to prevent the
> > head from droping all the way down.
> >
> >
> >
> >
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