I've been using Alan's PICStep drivers for around 18 months now, and not had any major issues with them. In fact, they've been really good.
I recently changed to the new V2.0 firmware (1/16 stepping), when a glitch started to appear. One of the motors (Z) was behaving erratically. I'm pretty sure I've tracked this down to a heat issue concerning the LMD's.
Is it logical, that running 1/16 microsteping would cause the LMD's to generate more heat than they did at 1/8 microstepping?
I tried to switch back to 1/8 mode for my Z axis, but found that the jumpers on the interface board no longer seem to alter the step mode??
I'm running the old, non opto interface board from Alan's site (V2.0).
The V 2.0 PICStep driver hardware.
The new V2 firmware (1/16 microstepping)
Has anyone else tried the new firmware with the older interface board and not been able to use the jumpers to change stepping modes?
It looks like I'll have to make up a heatsink and fan assembly to keep them LMD's cooler.
The 1/16 mode does generally seem to make my machine run smoother. Cheers Alan....