Negative Nozzle to probe offzet on Z not working Hi, I've just updated the printer to the last firmware, after re-applying my settings and calibrating my inductive probe my Z height is off. I've re calibrated the Z height but without any luck. In the firmware I set the NOZZLE_TO_PROBE_OFFSET to { 52, 0, -1.60 }, but a M114 says: X:48.00 Y:100.00 Z:1.60 E:0.00 Count X:3850 Y:8020 Z:6080 For some strange reason it does not like the negative number I put in. Any thoughts on how to fix this? Thanks! https://reprap.org/forum/read.php?415,881673,881673#msg-881673 Mon, 16 Mar 2026 23:19:45 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?415,881673,881837#msg-881837 Re: Negative Nozzle to probe offzet on Z not working https://reprap.org/forum/read.php?415,881673,881837#msg-881837 Bertsjuhn Firmware - Marlin Tue, 23 Feb 2021 07:13:18 -0500 https://reprap.org/forum/read.php?415,881673,881718#msg-881718 Re: Negative Nozzle to probe offzet on Z not working https://reprap.org/forum/read.php?415,881673,881718#msg-881718 But also with a positive value it does not lower, it seems to be at the same height as with the negative value.]]> Bertsjuhn Firmware - Marlin Sat, 20 Feb 2021 04:51:32 -0500 https://reprap.org/forum/read.php?415,881673,881707#msg-881707 Re: Negative Nozzle to probe offzet on Z not working https://reprap.org/forum/read.php?415,881673,881707#msg-881707 after the nozzle hits the bed, your Z offset should always be negative.]]> MMcLure Firmware - Marlin Fri, 19 Feb 2021 14:21:21 -0500 https://reprap.org/forum/read.php?415,881673,881691#msg-881691 Re: Negative Nozzle to probe offzet on Z not working https://reprap.org/forum/read.php?415,881673,881691#msg-881691 After posting my question I was already thinking it might be a double negative causing this behaviour.
So, if I just change it to a positive, it should be OK.
Will give this a try tonight.]]> Bertsjuhn Firmware - Marlin Fri, 19 Feb 2021 03:30:42 -0500 https://reprap.org/forum/read.php?415,881673,881679#msg-881679 Re: Negative Nozzle to probe offzet on Z not working https://reprap.org/forum/read.php?415,881673,881679#msg-881679 minus the Z probe offset. For example, if Z_AFTER_HOMING is the default (10) and your Z offset is -1.60, then after homing your Z will show as being at position Z=11.60

It looks like you have Z_AFTER_HOMING set to 0, which would result in you seeing Z:1.6 in the M114 output.]]> MMcLure Firmware - Marlin Thu, 18 Feb 2021 17:15:01 -0500 https://reprap.org/forum/read.php?415,881673,881673#msg-881673 Negative Nozzle to probe offzet on Z not working https://reprap.org/forum/read.php?415,881673,881673#msg-881673
I've just updated the printer to the last firmware, after re-applying my settings and calibrating my inductive probe my Z height is off.
I've re calibrated the Z height but without any luck.

In the firmware I set the NOZZLE_TO_PROBE_OFFSET to { 52, 0, -1.60 }, but a M114 says: X:48.00 Y:100.00 Z:1.60 E:0.00 Count X:3850 Y:8020 Z:6080

For some strange reason it does not like the negative number I put in.

Any thoughts on how to fix this?

Thanks!]]> Bertsjuhn Firmware - Marlin Thu, 18 Feb 2021 14:19:02 -0500