So, I recently installed an inductive sensor to my 3D printer for auto bed levelling and now I'm stuck on Z probe offset as it doesn't seem to do much apart from changing number is given on display for the Z-axis. On tutorials that I watched, after Z homing, the print head lifted and allowed to set Z offset but my 3D printer doesn't do the same thing as in the tutorial. I'm not sure if its a problem in Marlin or a physical issue with my 3D printer. If anyone can help me I will be thankful as I'm stuck on this issue for a few days now. Also how far above the nozzle should the sensor be for it to work and not wipe off the 3D prints.

My 3D printer is a Creality Ender 3, glass bed, SKR 1.4 with Marlin 2.0.x firmware and an inductive sensor (LJ18A3-8-Z/BX-5V).

  • 1
    $\begingroup$ If it is after leveling/probing, it will never wipe prints off, it will pose a problem with priming though. Note this isn't a Z probe offset problem, instead, this is a Z position problem. Please look into this answer, which describes the Z offset. Note that setting the correct value for this offset is essential for your prints to succeed. $\endgroup$ – 0scar Nov 8 '20 at 7:19

I discovered something which could be the answer to the problem, in Marlin compiling there is: //#define Z_AFTER_PROBING 2 // Z position after probing is done

You have to uncomment it and change number 2 to how many millimeters you want it to be above the 3D printer bed.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.