Re: [CAD_CAM_EDM_DRO] Brush DC servo not for contouring?

Ok, this is going to show how "green" I am, because even though I have
heard of those terms, not sure what they mean..... I am using a Yamaha
linear SXY series, within it's case, there is a THK type slide, and a
ballscrew. It is very efficient, and moves very easy, and the pitch is quit
quick, 8mm per turn. So I thought I kill two birds with one stone, and use
a gear head motor system to let the motor move faster, yet more powerful,
and adding resistance to the Yamaha.

Your right, if the gear head has backlash, then it will not work, this is an
unknown..... any suggestion and ideas?????

Thanks,
RC

----- Original Message -----
From: Jon Elson <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, April 09, 2002 10:39 AM
Subject: Re: [CAD_CAM_EDM_DRO] Brush DC servo not for contouring?


> RC wrote:
>
> > Jon..... I want to use the DC Brushless motor for my "Z" axis, it also
has a
> > gearhead, I was hoping, since it is geared down, that it would help in
> > accuracy, and resistance, so the drive will not move when powered down.
> > Pitch of leadscrew is 8mm, 9" of travel.....
>
> Unless it is a zero-backlash gearhead, then it will make accuracy WORSE,
> by adding backlash. I have a ballscrew directly attached to the quill,
and
> I have no problem with it moving when powered off. Will you be driving
> the quill, head or knee?
>
> Do you have the servo driver for this motor?
>
> Jon
>
>
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