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Steps Per MM issue #24

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Jim-bee opened this issue Nov 27, 2021 · 0 comments

Jim-bee commented Nov 27, 2021

Hello,

The scaling of the X & Y axis is not correct. When I calculate the machines steps per mm the scaling is too small.

Setup: Belt drive, MXL(2.03) 25T pulleys, 200 step motors, 16 micro steps per full step.
Rough Math: Steps per mm = (200 * 16) / (2.03 * 25) = 63.05

The images printed at 63.05 are much too small I have to set the X_STEPS_PER_MM & Y_STEPS_PER_MM value to 250.0 to get the scaling even close.

I believe there is an issue with the math.

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