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Rat Rig Community [Unofficial]•3y ago•

10 replies

spotty-amber

Problems with homing direction with sensorless homing

Hey there.

I'm currently building my self sourced vCore (300) with an Octopus Pro 446 and TMC2209 drivers and struggle with homing directions with sensorless homing. I face an issue where my jog direction and homing directions seems to be opposite all of the time. Jogging x to the left works, but then my x axis is homing to the right (max) direction. The same with the y axis. I switched stepper cables in every possible configuration I think. Whats weird for me is the opposite movement at jogging / homing. Also the homing itself isn't working as I can still jog into the x max position after homing x. Also I only have 150mm travel after homing -> I can move the carriage to the approx center of the x axis then but not further.

All files in RatOS are untouched (verified by git statusgit status). My only overrides are in the section in the printer config. I copied the sensorless config to the config directory and made the changes for the includes in the printer.cfg (removed physical - added sensorless).

I'm clueless where I messed up or what part is missing for me. Maybe you can spot my issue?

Please ignore the other settings in the printer config. I have no heaters attached yet and wanted to ignore the z-hop on homing for now. Also I'm using a low current for the steppers till I have calibrated them (z and xy steppers are different kinds and not the steppers from the bom). I think the lower currents have to be adjusted when tuning the sensivity but inverted directions should not have any to do with low currents I believe.

Thank you very much!

printer.cfg14.55KB