[BUG] M204 P0 T0 in RepRapFirmware

[timschneider]

What happened?

The slicer will output M204 P0 T0 in G-Code causing the printjob to fail.

Project file & How to reproduce

Change default acceleration under print settings -> speed -> Default acceleration to a value != 0 -> slice -> change it back to 0 -> slice again -> M204 appears with P0 T0

dfd970b7-2746-4052-a49d-26d50d9735ee.mp4

Shape-Box.zip

Version

2.5.59.6

Operating system

Windows 11

Printer model

Meltingplot MBL 136

[vknvkz]

I have the same problem but with Gcode Flavor = Marlin 2.
This problem appeared in version 2.5.59.5

[vknvkz]

I found a solution, all acceleration values in Print Settings -> Speed -> Acceleration control (advanced) must be 0.
Even the grayed-out cells.

[timschneider]

I found a solution, all acceleration values in Print Settings -> Speed -> Acceleration control (advanced) must be 0. Even the grayed-out cells.

I would call it a work around :)
If the values are greyed out, they should be ignored by the software and/or set to a value that does not cause any damage.

[supermerill]

thanks for he report.
I made 2 errors:
. forgot to initialize the travel acceleration to 0 at startup
. I had a safeguard for 0 travel accel, but not yet for 0 printing accel.