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ForumCSMIO/IP controllers and Software - discussion forum: CSMIO/IP with simCNC softwareCALCULATION STEPS/MM

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CALCULATION STEPS/MM

#1 · 26 October 2025, 21:27

Hello, I need help. I recently purchased the SimCnc software and need to configure the steps/mm in the program. However, I need the formula and also the formula to calculate the acceleration.

All the best.

#2 · 30 October 2025, 06:47

For the steps/mm you need motor / drive steps/rev and mechanical ratio. e.g. if you have 8000 steps/rev drive and 10mm lead screw that will be 10mm/8000 =0,00125 mm

Regarding acceleration, there is no formula, it depends on particular machine, drive, requirements, etc. In case of doubts start with conservative values like 500mm/s^2 and Jerk 50000mm/s^3. This should work for most cases, and you can then try more aggressive values like accel = 2500mm/s^2 and jerk 150000mm/s^3.