Petru
RRCRat Rig Community [Unofficial]
•Created by Petru on 4/12/2025 in #ratos-support
First layer squish (possible thermal expansion)
Thr Question is: prior to the update didn't the beacon_ratos_calibrate used to measure thermal expansion with the bed off and then to run again the procesure( 150-250-150-250C) with the bed at the defined temperature? And only after to proceed with the gantry twist check.
Now the part with calibrating thermal expansion with the bed heated is missing, which in my opinion is the primary cause of first layer problems. Not accounting for the bed expansion and accounting only for the hotend thermal expansion.
I saw some post here where people considered that the x-axys 2020 extrusion is at fault. True that there are also some expansioning going on, but there is nothing new after the update.
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