Calibration question

[Snow_Man]

Option B... put a ruler on the platform (next to the nozzle) and move it 100mm in each direction (X, Y, Z). Test it a few times... If you consistently get say 96mm in X direction and 101 in Y direction, you need to adjust your steps... https://www.instructables.com/Calibr...imal-filament/ is a great link for walking you through updating GCode M92.

[Hugues]

So I followed Option B above

X130.51 mm vs 130


Y
109.4 vs 110



Z
39.75 vs 40

So they are all pretty good.

In my opening post, I measured in X a difference of 0.34 mm over 30mm, so 1.13 % deviation
My X calibration measures above deviate by 0.51 over 130mm which is 0.4% only.

Maybe something else is not right ?
Belts are tight, i cannot move the print head in any direction when printer is on.

[finlay31]

Option B... put a ruler on the platform (next to the nozzle) and move it 100mm in each direction (X, Y, Z). Test it a few times... If you consistently get say 96mm in X direction and 101 in Y direction, you need to adjust your steps... https://www.instructables.com/Calibr...imal-filament/ is a great link for walking you through updating GCode M92.

Option B is better .I have tried and it worked