More drives needed on 4g Board

[rhfurniture]

Hi,
I have a PRT (modified benchtop) with a 4g board with 5 driver slots all occupied - 2 on X, 2 on Y and a Z. I want to add another Z spindle, so need another driver. The software seems to have room for 6, so is there any way of wiring in another gecko? I do not want to reduce the X or Y arrangement as this works brilliantly with the heavy hardwoods I tend to machine. I could possible set up a park and switch routine for the Z drive, as I will only want to use one Z at a time, but will need to do it within the same program.
Any help or suggestions on this very welcome. Thanks,
Ralph

[Brady Watson]

Ralph,
It's been a while since I've messed with a 'loaded up' 4G, but I think there is an area on the board near the ATX Molex where you can add the dip switches, fuse and pull step & direction for the 5th channel. I would contact SB to be sure that is the proper 'tap' for this. They may even be able to send you all the goodies you need to do it.

-B

[rhfurniture]

Thanks Brady,
I will definitely contact SB first when/if I go down this route.
Allbest,
Ralph.