Default startup code for Printrbot needs upgrading
Posted: Thu Mar 31, 2016 11:54 am
Default startup Gcode for Printrbot Simple Metal runs as this:
However, it must be as this:
This is because G29 calibration routine does not work if the nozzle is higher than 1 inch, and fails silently and sets current height as Z0. Then, second print will start in the air and, if unchecked, can even run over the top. This quirk existed for years and Printrbot are not going to fix it.
Code: Select all
G28 X0 Y0;
G29;Code: Select all
G28 X0 Y0;
G28 Z0;
G29;