Filament change during Bed heating not working as expected
Yesterday i have found a really strange behaviour (maybe bug) on my duet.
When i try to preheat my heat bed from the PanelDue (lets say to 40°C) and during the heat-up phase i want to load a filament, the hotend is reaching it's target temperature specified in the load-gcode but does not loading the filament until the bed reached it's target temperature (40°C).
Since heating up my bed takes a long time (~10min to 65°C) it try to use this time for doing other stuff (like changing or loading the filament).
Is this the desired behavior or i'm doing something wrong?
G10 S225 ; Set current tool temperature to 225C M116 ; Wait for the temperatures to be reached M291 P"Feeding filament..." R"Loading PETG" S0 T0 ; Display new message G1 E5 F600 ; Feed 10mm of filament at 600mm/min G1 E45 F3000 ; Feed 45mm of filament at 3000mm/min G1 E10 F300 ; Feed 15mm of filament at 300mm/min G4 P1000 ; Wait one second G1 E-5 F1800 ; Retract 5mm of filament at 1800mm/min M400 ; Wait for moves to complete M292 ; Hide the message G10 S0 ; Turn off the heater again
I'm using RepRapFirmware 1.21 on a core-xy printer (Hypercube)
Thanks in advance.
Jackal last edited by
Thank you for your response. I'll check it when i'm at home today.
I'm pretty sure this is the problem.
The M116 command without parameters waits for all temperatures to be reached, including the bed. Use e.g. M116 P0 to wait only for the tool 0 heater(s) to reach operating temperature.
Just checked to documentation and sucessfully tested it with M116 P0.
Thank you for your help.
zerspaner_gerd last edited by
Is there a command where just waiting for the tools (T0&T1) without waiting for the bed?
@zerspaner_gerd "Recent versions of RepRapFirmware also allow a list of the heaters to be specified using the 'H' parameter, and if the 'C' parameter is present, this will indicate that the chamber heater should be waited for."
zerspaner_gerd last edited by zerspaner_gerd
@phaedrux Thank you for your prompt reply.
Will try it