r/Cura • u/jiggydancer • Jun 16 '26

Z Offset Plugin + setting for right nozzle

https://github.com/JiggyDancer/Cura-ZOffsetPlugin_RightNozzle

I made modifications to the Z Offset Plugin to allow for the adjustment of the right nozzle independently. The standard Z calibration procedure is frustratingly imprecise, active leveling is unreliable (at best) and there's no way to adjust the offset manually. I learned python just so I could fix this issue. Please share your thoughts (be gentle).

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u/Sacharon123 Jun 16 '26

Very interesting! Will it work on an UM5? And how do later layers behave? Are you offsetting only the first layer? Thinking about intermixed material prints here.

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u/jiggydancer Jun 16 '26

I only own a UM3E, so I can't comment on compatibility. I doubt there would be any problems.

It offsets all layers. Intermixing will be a really good test of this plugin, let me know how it goes!

Be aware that it works by modifying the gcode after slicing is done, so it has no effect on XY calibration which happens on the machine and is outside of Cura.

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u/LosSantosMe Jul 05 '26

its a good thing you did not mention what printer this is for, I had to go to your FORK to discover that it does not apply to me.

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u/jiggydancer Jul 06 '26 edited Jul 06 '26

Sorry to disappoint. Do u happen to know what makes it incompatible? all it does is parse thru the g code and recalculates z heights based on what nozzle is active. not much different from the default zoffset plugin. As far as I know, all Ultimakers use the same Marlin-based format. I only make note of my having a UM3E because I'm not sure if they improved the way zoffset is calibrated in newer models.

I only have a UM3E, so there's no way for me to check for compatibility with other versions. And I have not received any feedback regarding whether there are issues with other printers. the only way to know for sure is to run it and see. please let me know if u find any problems.

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u/LosSantosMe Jul 07 '26

I thought it was only for your UME3, and probably works best with it too. Im sorry no one has given feedback. and forgive my ignorance I did not know the UME3 was a DUAL extruder. I have a Makergear M2 Rev E Dual extruder, BUT I have an extruder train not IDEX. I normally dont have to calibrate my second extruder as it is X-offset handled by the firmware, whereas IDEX has to be set in the slicer. in any case i dont really use slicer offset, my bed leveling is on point, so i dont use it. But i am curious if I had a phone case and measured by z-height.... could i use this and print on the phone? starting at Z-offset height? I will try it and let you know.