First Layer Calibration and MaxBuild Size Check

thingiverse

The printer helps with first-layer calibration across the full build volume for PLA and PETG. The outer box is sized according to the maximum build volume of the MK3, which is X250 Y210. When printing, watch carefully to see if anything unexpected happens. In case of a crash detection stop immediately. A common reason for an X-Axis crash is the zip tie assembly for the hotend. The zip tie prevents full movement and triggers the carriage too early. To quickly double-check the correct assembly, find the original Prusa zip tie instructions attached. If you are "crash-free," use LiveAdjust Z to tune your results. If you do not get flat across the full build space, try Bed Level Correct for the side with issues. Follow these instructions: https://help.prusa3d.com/article/TPGip0OmaP-bed-level-correction-kit-only I also attached 3mf files for both setups so that you can adjust temperatures easily. If you go with the below and have a MK3, use the pre-sliced gcode. FYI: Settings for presliced GCodes are: PETG: Temperature is 250C, Bed temperature is 85C, Speed is 20mm/s PLA: Temperature is 215C, Bed temperature is 60C, Speed is 20mm/s