Re: [CAD_CAM_EDM_DRO] Gantry Drive Topology

Hi John,

I used HTD belt on my machine and it works very well. HTD belt has very
low backlash and is tolerant to the abrasive dust that plasma cutting
generates. I used one belt on each axis but if I was doing it again I
would use one either side of the gantry.

Les

John wrote:

>
> Hi!
>
> I am thinking of making a gantry for plasma cutting. I will
> probably use something like Bosch Rexroth modular aluminium frame
> for the travelling sections.
>
> I understand the difference between steppers and servos, and will
> most likely be using servos to achieve a more dynamic movement on
> thinner materials. However, I would like to ask for your advice on
> choosing a motion system however.
>
> The table will be designed to take standard sheet metal sizes,
> which means that a travel of approximately 1.5m by 2.5m is required.
>
> With the gantry being made from inherently light materials and only
> spanning 1.5m, it shouldn't weigh very much at all.
>
> As I see it, I have a few options available. Lead screws, timing
> belts or rack and pinion.
>
> I imagine lead screws are the first to go, but what would you
> recommend I look at for the drive topology?
>
> Best wishes,
> John
>
>
>
>
>
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