Repetier said:
That is more a firmware/printer issue. There should be an official solution to calibrate Z home position such that it works. Either a physical z endstop that gets moved or some firmware configuration that changes z height for homing e.g. stopping sooner. You normally just home Z as firmware needs to know z height so that must work. I know at leat one printer that actually uses the touch with bed as detection method which is actually clever if chaning nozzle/cartridge might lead to slightly different heights. Of course the nozzle must be stiff enough to survive such a touchdown then.
Manual method is just move Z manually and send
G92 Z0
to tell firmware to take that as 0 and make sure to not home Z after that.
thanks for replying. actually their is a bottom on my firmware to stop the nozzle and set the Z=0. But when I stop printer in the middle of printing, the Z=0 changes to the height that I stopped the printer on, so next time I have to set the Z manually. I don't know if its about software or firmware! can you help?
