x-y step calibration very precise

This method is not affected by extrusion width and be more precise in compare to model where you measure the outer width.

Use sharp tool to scrape lines between holse to make a cross . Measure between cross points.

I use 150mm version because my caliper can measure up to 160mm.

To online calculate steps use 3.2 step in this document: https://docs.google.com/spreadsheets/d/1AYurIUz6pwcJbzzpIF4UwgEXCtxaEZ0okNuJRrKAkT8/edit?usp=sharing

Or download excel file here: https://www.thingiverse.com/thing:2390274/files

MARLIN users:

read current settings from EPPROM: M501

set new values: M29 X80 Y80 (where 80 is you value)

save setting to EPPROM: M500

3D Sources:

100mm https://cad.onshape.com/documents/df6a901e0e10cb74a49109e7/w/99246e711677e8b703c7653d/e/e7cae0c95fa1ba356d9b730f

150mm https://cad.onshape.com/documents/ccba722a04a88daba98dc44e/w/014b2f853c65f451c64206b7/e/9a8ab64de303c77d7a369133

180mm https://cad.onshape.com/documents/73b8051e22051ec5403de33e/w/dfa94df28a30fe3c5ab0d080/e/ad5635f082fc363426df0526

200mm https://cad.onshape.com/documents/932e590aaeff1fa6428aa798/w/b5c8ab930fc0a4e43f670053/e/8740909971ad7e4b866ad38d

300mm https://cad.onshape.com/documents/f43f2feb73864250035ab20f/w/ad56eb456ba4d61b768a8b55/e/13aaa544074f28a71d891029

Print Settings

Printer Brand:

Anet

Printer:

A8

Rafts:

Doesn't Matter

Supports:

Doesn't Matter

Filament: Any Any Black