Print starts too low past home z
how do i fix when i start a print it starts lower than my z home position, i even installed newest firmware and problem still there. I even paused print rehomed z and it went to perfect position but as soon as resumme print went too low right against bed pushing down. home g28 is in the right possition
How are you homing Z? Do you have a Z probe, if so what type isn't?
home with Duet Web Control home buttons on computer and panel due, and sent g28 threw web control g code area and is always in good set up position but as soon as start any print job goes down right in glass scrarapping table. And use just regular z endstop active low normally open switch
Is your Z endstop switch connected to the Z endstop switch input, and have you adjusted your homez.g and homeall.g files to use a Z endstop switch instead of a Z probe? See https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_Cartesian_printer#Homing_Z.
tryfarming last edited by
Chris, just trying to get new core xy running and had this same problem, home z perfect then when i went to print rams head into bed, found that homez.g and homeall.g had an instruction to set bed height to 2.5mm after doing home action. sorry cant give you g-code because i deleted them.
im using RepRapFirmware Configuration Tool, and had z endstop limit switch setting on top of page and not the z probe and thought that would cancel out z probe settings on bottom, but there was these default settings in switch colum:
Trigger height at Z axis: 2.5mm
mmTrigger height on bed: 2.5mm
mmTrigger value: 600mm
A switch is used to determine the distance between nozzle and bed
i changed all settings to 0
and now works perfect