I've seen speed vs torque graphs on some stepper/driver combos but I can't find that on the ones I just ordered from automationtechnology. I ordered the motors and drive from this kit. https://www.automationtechnologiesin...-3-axis-kit-1/

I emailed their tech support and they said if it's not on their website they don't have it! I put a question back on them to disclose the manufacturer so I can request it from them.

This is going on my Seig X2 conversion and I'd like to have this info to select pulley ratios to drive the screws. I'd like to know when the torque really starts to drop off.