Best posts made by skrotz

@bot The follow up video is now available

https://www.youtube.com/watch?v=32dTLRNIYmw

@dc42 Can confirm some weirdness. Was running RRF 3.3 release, uploaded new 3.4 combined firmware to duet2 wifi on a Railcore 300ZL. It reset itself after upload and homing and movement seemed ok, but when actually trying to print it seemed to stall or something, with occasional random movements.

I powered off and on and disabled all input shaping (it still had DAA enabled from my default setup, at 40hz). Was able to print a calibration cube after that, don't know if it was disabling the input shaping that did it or the power cycle. However, when printing the gyroid infill it would make a weird clunking noise that I couldn't identify where/what was happening exactly. Cube printed roughly ok however, but somewhat under extruded so maybe it was extruder motor making the clunking.

Just to be sure, I went back to R3.3 stock and things seem to be printing ok again, no clunk noises, on same exact gcode, so definitely looks like it was 3.4 causing some strangeness.

update: R3.3 calibration cube printed normally, and didn't have any underextrusion issues (or at least, something that looked like underextrusion).

@nuroo FYI the calculator has been updated to include a reprap compatible M556 command for skew adjustment and it seems to work.

@dc42 Tried the new firmware, did a full power cycle after installing just in case. Had same clunking noise on printing a calibration cube on the infill. I discovered disabling pressure advance caused it to stop clunking.

Normally I have S 0.12 for PA, with a little experimentation anything at 0.4 or above (ish) seems to cause the clunking noise. If there's specific debug that would help with this, I can try and gather it.

@dc42
M115
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.4.0beta2-inputshaping ELECTRONICS: Duet WiFi 1.02 or later + DueX5 FIRMWARE_DATE: 2021-07-25 09:41:53

Will try and capture step error data now.