Re: Long X axis Method of travel.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:

>
>
> dex367 wrote:
>
> >I am in the preliminary process of designing a 4 axis machine

using

> >open loop stepper motors and a PC. It will be used to route wood.

The

> >X axis needs to be 96 inches long. That about 2.4 meters.
> >
> >What would be a good method to drive this long lenght?
> >
> >1. Tooth Belt Drive
> >2. Rack and Pinion
> >3. Lead Screw
> >4. Other?
> >
> >


> Toothed belt drive may be your best option. Especially a belt that

normally

> lays on a flat surface, so it won't flap as the machine moves.
>
> Jon

With a toothed belt drive what kind of repetability and resolution
would I expect?
Would a chain and sprocket be better than a tooth belt drive even if
both were layed on a flat plastic surface?
With this type of drive, would an automatic tensioner help?

Dex