Mat
RRCRat Rig Community [Unofficial]
•Created by Mat on 4/17/2025 in #fix-my-printer
Beacon probe Z-offset is consistently too far from build plate
I've ran into this issue while installing and recommissioning my 500 V-core 3.0 with a new Toolhead V1.0 assembly. Every print starts the first layer too fat from the build surface (textured PEI sheet). I will baby step the print in to a good layer height and save it with "SAVE_Z_OFFSET" via console as per the RatRig Beacon documentation. I'll get a confirmation in console of the new thermal expansion compensation multiplier being saved, and entering SAVE_CONFIG once the print is done. I have no idea if the response I am getting of "The new multiplier value has been saved to the configuration" is correct or not. It doesn't exactly sounds like the correct response for a manual Z offset adjustment
On the very next print the first layer will be nearly exactly as where it started on the first print pre-baby stepping. It's as if RatOS is overwritting the old Z-offset at the start of each print. My current understanding is that manually entered adjustments should be saved. I should note that at the start of each print I get a very consistent "Nozzle expansion offset" of -0.043281mm just before the printer starts printing, regarldess if I babystepped the previous print or not.
What I would like help with is:
-Where and what should I be looking for to verify if RatOS is overwriting these manual adjustment values
-Is there a more correct way of saving the baby step offsets
Thanks!
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