Prints starting at z0.35

Hey guys

My printer is a prusa i3 with auto levelling running marlin.

So this is what's happening: my printer heats up and then levels the bed normally, but after that - when the printing process actually begins - the Z height goes up to 0.35 no matter what Zoffset or slicer I choose I can't make it go down to the correct Z printing position.

What do I need to do to fix this?

Hello henripster,

This is a bit of a late reply, but what is your start gcode for the print? What slicing software are you using?

Look out for this "G1 Z5 F5000", it could be your culprit, unless that is the 'Zoffset' you speak off.

I would remove that line of code and see what happens, or set it to G1 Z0 F5000 if you feel so inclined.

Good luck.

In your slicer set Z offset to -0.35. So it will moves your nozzle down 0.35 mm to touch the bed.
If you can't do that , go to marlin configuration.h and comment out #define MIN_SOFTWARE_ENDSTOP_Z to become like this
//#define MIN_SOFTWARE_ENDSTOP_Z.