Re: [CAD_CAM_EDM_DRO] Timing Belts / slaving axes motors by series wiring?

I will have a 1/2" dia. shaft across the gantry driving the same
drive-belt arrangement on both sides. The single motor will drive the
1/2" shaft. There will be two idlers (1" cam followers) to route the
belt over the drive pulley.

I'm curious about the waterjet cutter. Do you have the equipment? How
much to buy a system? How about a laser?

The commercial waterjet cutting systems I have seen cut under water. The
work support moves up and down to position the work underwater during
the cutting operation. I suppose this is a convenience feature, you
could just fixture your parts underwater.

Terry

Doug Fortune wrote:

>
> Terry Toddy wrote:
>
> > I am building a 4' x 10' cnc plasma cutter. Does anyone have experience
> > using timing belts vs. a rack and pinion drive for the gantry system?
>
> I'd be interested in you posting your design once its built. I too would
> eventually like to build both a plasma cutter and a waterjet cutter
> (using the same table, just replacing the "head").
>
> > I have a design in mind that will use a stationary timing belt along the
> > x axis with the <X axis> motor mounted to the <gantry>. The <torch mount>
> > would be moved with a continuous belt where the motor is fixed to
> > the <gantry>.
>
> Do you mean like this:
>
> Fixed _________________________
> M )
> ---
> ( idler _______________________fixed.
>
> gantry
> I
> I
> I <--- gantry motion --->
> I
> I
>
> M is the Motor pulley, which the belt wraps around 180 degrees, then
> another 180 degrees around the idler pulley, and the Motor pulls the
> gantry down the table? You might need a belt and a slaved motor at
> each side of the gantry to achieve equalized forces (to avoid canting).
>
> Doug
>
> List:
> On the topic of "slaving" a stepper motor, has anyone tried to do
> that by putting a single set of driver wires in series (or parallel)
> to two motors?
>
>
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