Re: driving a Router - Belt or Ballscrews

Belts or ballscrews, how do you compensate for any racking of the
moving gantry if you move it from one side? or do you use a lead
screw on each side and drive them from the same stepper ?

--- In CAD_CAM_EDM_DRO@y..., "Bob Campbell" <bob@c...> wrote:
> Rab,
>
> The parts that I use are the Hiwin rails on Aluminum extrusions.
For screws,
> I use BS&A screws.
>
> The Hiwin rails are almost half the price of THK or IKO rails and
bearings.
>
> Bob Campbell
>
> -----Original Message-----
> From: rainnea [mailto:rainnea@b...]
> Sent: Thursday, June 13, 2002 4:05 PM
> To: CAD_CAM_EDM_DRO@y...
> Subject: [CAD_CAM_EDM_DRO] Router - Belt or Ballscrews
>
>
> There seems to be a good many off the shelf linear-actuators, the
> majority of which are offered with either belt or ballscrews (some
> leadscrew and some linear motors too) with a choice of bearings and
> assembled on aluminium extrusions that can be bolted together to
form
> a gantry or moving table router.
> Given the large price difference, the belt driven units seem pretty
> good, but are they any good for a router ? I don't see commercial
> routers using them, but the specs seem ok on paper.
>
> Rab
>
>
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