Z offset does not work consistently..

I have a vcore 3.1 500. I am using the superpinda... I set the z offset using CALIBRATE. It works, I then fine tune it.. I do a print. I do a second print.. then the third print, I have to make adjustments.. At which time I SAVE CHANGES. I then do another print.. then another.. then I need to fine tune it again.. and so on.. I have never experienced this before.. Any idea why? I look at my printer.cfg I see my z offset set there, but its requiring constant changes. My bed is heating up before the print starts, once its heated the bed levelling starts (qgl and then 7x7).. Any ideas? thoughts?
3 Replies
blacksmithforlife
After you save changes, did you verify it was written to your printer.cfg? Did you check that your slicer isn't overriding the z offset?
blacksmithforlife
You could also check out https://www.printables.com/model/230716-ratrig-v-core-3-extrusionless-x-gantry-mod. In the graphs you can see that things move for 40+ minutes because of heat.
Printables.com
RatRig v-core 3 extrusionless x-gantry mod by elcojacobs | Download...
V-core 3 mod to remove the aluminium extrusion from the x-gantry and run on just the rail or a top and bottom rail | Download free 3D printable STL models
rising-crimson
rising-crimson2y ago
I checked, despite me making changes and saving, it still says: ## <---------------------- SAVE_CONFIG ----------------------> ## DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated. ## [probe] ## z_offset = 0.600