Thanks Jonathon. I would of gone for the 70V setup if I was buying again, but this 42V setup *should* be OK. I'm going to re-run the latency test as I have a wireless USB keyboard connected now (which I didn't have previously), so that may be causing issues. Attached are screenshots of my stepconf. Do these numbers look OK to you? I'm not sure about the timing settings of 5000 as I can't find any actual values in the drive manual. There are a few "542" type drives on this page, but they all have drastically different timings: LinuxCNC Documentation Wiki: Stepper Drive Timing. Again, I don't have enough info to get these set correctly...

Out of interest, what step rate do you guys normally set your 542/752 drives at? 800, 1600 or some higher value? Don't forget I'm a newbie, so am just wondering what range of settings are considered "normal".

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