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Hi,

Not long had an i3 plus and it prints parts slightly too large. Scaling to 99% in cura fixes the issue though. Any ideas? Could this be an e step calibration issue?

Also does anyone recommend any mods/calibrations I should do apart from z brace? I heard something about stepper voltage could be off on a few of these, how do I check/confirm that?

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I have the monoprice select plus (equivalent model) and have the same problem in the x&y axes. z is accurate. i also been working with monoprice support because the y axis cutoff switch doesn’t work and when i ‘home’ the device, the extruder rubs against the front left bed adjustment screw. monoprice support says it is a firmware issue and will be replacing my machine. i’ll be curious as to how many of these problems a different machine fixes. on the scaling, i thought about using scaling, but suspect that will also throw off the z axis. until i get the new machine, i’m just going to manually adjust the model in the x&y to compensate. for me, 148.2mm prints out at 149.5mm, so slightly less than 1% adjust is required.

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just found another post that suggested checking the motor settings. mine was at 81 per mm on x&y. changed that to 80 and test ruler printing out to scale. go to system -> motor and then adjust the settings.