RE: [CAD_CAM_EDM_DRO] 2 stepper in parallele usage for more power

> -----Original Message-----
> Hi Tim,
>
> I do not have anything ready jet, I'm in the design phase.
> I need to have the middle of the table empty, so I was
> thinking of the two separate screw (yes like gantry, yet a
> new word) set-up to accomplish this.
>
> Dose the Mach2 slave mode mean that if you have an 4 axis
> breakout board you can use the 4: th axis as the slave with
> its own drive, motor and screw?

Yes, in Mach2 setup you tell it to slave the 2 axes together. It uses
another set of pins for the step and direction signals for that drive.
If you have a 3 axis machine and a 4 axis breakout board you would then
use the 4th axis pins for this purpose. Mach2 lets you use separate home
switches on the main and slave axis so that you can automatically square
up the machine and get the 2 motors in sync.

> "If you have one step/dir pin to drive two drives"
> Do the Gecko 320 servo drive have TTL level inputs? If it
> dose would the parallel port have the power required (not to
> far away!)?

Hard to say. There have been a lot of problems lately with parallel
ports that do not put out a full 0 - 5 v TTL signal. G320 use a +5v
common and sink the current on the parallel port which give you a much
better chance for it to work. I am sure some of the more electronically
astute members can comment more on this.

Tim
[Denver, CO]
Visual Mill 5.0 Basic at a price too low to post!

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