Which BOB for the smooth stepper

[XLR84x4]

I have been struggling with the GREX so it's tie to give it the flick.

Which bob can someone suggest. I wish to run high feed rates of +5000mm/min on a material cutting table using a tangential knifeJason

[Peter Homann]

Hi,

The idea of the SmoothStepper is to look like 2 parallel ports. So, any of the parallel port BOBs should be fine.

Cheers,

Peter.