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After a long time tweaking my new 3D printer I solved all the unexpected errors and I can print succesful pieces but I am facing a "problem", they are over sized, I found this problem trying to print a Raspberry Pi Case and an smartphone case, the printed pieces are bigger than the objects.

Here some related information

Printer: Geeetech Prusa i3 Pro B

Firmware: My GitHub (Marlin)

Software: Repetier Host with Slic3r

Does somebody know how could I solve it? Thank you very much

1 Answer 1

You have to know:

  • distance between belt teeth (usually 2mm)
  • number of teeth on pulley
  • motor step angle 1.8 deg?
  • microstepping count, probably 16?

Then you can enter all these numbers info the calculator here: https://www.prusaprinters.org/calculator/