ShadowViper
RRCRat Rig Community [Unofficial]
•Created by ShadowViper on 10/22/2024 in #fix-my-printer
Nozzle gets closer to the bed every time during first layer (worse at higher temps).
I'm hoping somebody has had this issue before. I've ran through as many calibrations as I can find and just recently found the one here:
https://github.com/HelgeKeck/RatOS/blob/documentation_v2.1/site/docs/configuration/beacon_contact.md#6-first-print-and-fine-tuning
Everything works, even my beacon comes back with a 1 for the latency.
After the calibrations I'll print a large first layer - probably around 200x100mm
It'll start out PERFECT and about half way through the nozzle starts moving closer to the bed and I can see the lines start squishing out, if I adjust the z up to compensate (0.025 at a time it will adjust and keep printing good) - this is the fine tuning part further down on the page.
That's all find and dandy and the print will keep going nicely.
The issue then is the next print I do. The beginning of the first layer (which was perfect before at the beginning) is now too high because I saved the final z adjustment from before.
Today I used the "save_z_offset" command in the console and it supposedly adjusted the thermal setting, but after a couple more prints consistently back to back (just incase the bed wasn't heat soaked enough) and I still got the same consistent z height issues. Either too high at the beginning, or good at the beginning and too low at the end of the first layer.
This is also happening on all 3 of my ratrig 3.1 with beacons. I've ran non-ratos versions of klipper and the newest ratos with all the updates - doesn't seem to make a difference, different nozzles (E3D and Phaetus). Right now I'm putting an old pinda on one of the setups to see if it has the same issue ( I don't remember having this before I got my beacon sensors ).
Any ideas?? I'm at a loss and I can't babysit each of these machines through their first layer all the time - I shouldn't have to.
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