Currently, users who want to automate heat soak for their Bambu Lab printers must employ multiple manual 90-second pauses/dwells in their custom machine start code. It is not an exact science or automated process, something we should be able to avoid in a $1000+ printer. So users have to resort to sloppy code like this:
;===== HEAT SOAK ====================
{if (filament_type[initial_tool]=="ASA") || (filament_type[initial_tool]=="PA-CF") }
M190 S110 ; wait for bed temp at 110Âșc
M140 S110 ; set bed temp at 110Âșc
M106 P2 S255 ; turn ON aux fan at full speed
M106 P3 S0 ; turn OFF chamber fan
G4 S99 ; wait 1min30sec or 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
G4 S99 ; wait 90 seconds
M106 P2 S0 ; turn OFF aux fan
{endif}
In reality, users should only have to write this if they are wanting to heat soak to a 50ÂșC chamber temperature.
;===== HEAT SOAK ====================
{if (filament_type[initial_tool]=="ASA") || (filament_type[initial_tool]=="PA-CF") }
M190 S110 ; wait for bed temp at 110Âșc
M140 S110 ; set bed temp at 110Âșc
M106 P2 S255 ; turn ON aux fan at full speed
M106 P3 S0 ; turn OFF chamber fan
M191 R50 ; wait until chamber has reached 50Âșc
M106 P2 S0 ; turn OFF aux fan
{endif}
See how much simpler and clearer in intent the code is? By using an exact sensor-driven command, we have instantly reduced ten lines of code to just one! Furthermore, it allows for hitting an exact chamber temperature rather than âguesstimatingâ how long it should take. The current manual method to heat soak can end up with undesirable results if the target is not reached depending on how temperature sensitive the filament is that the user is working with.
In conclusion, please add support for the M191 command to simplify the heat soak process. Thank you!
I know its a wait for chamber temp code but the X1C is my first fully enclosed printer so Iâve never used it
My question is regarding the way the chamber is passively heated rather than actively heated
The command would make sense only if there was no filament in the hot end yet and the extruder was parked at the waste chute otherwise I could see a mess of Carbon Fiber spaghetti before the print starts
Perhaps an activity heated chamber is a better solution down the road ?
Also are you able to PID tune a chamber heater ?
I only ask because PID tuning has fixed a lot of headaches for me in the past but Iâm pretty sure the only USB port on these is in the back behind the cover and I have no idea if that port is in the correct position to access the board via a computer
Iâm still somewhat of a novice so any legitimate replies are appreciated
I understand exactly what you are saying but relying on the bed to heat the chamber above 40° will take a looooooooong time lol
Thereâs still so much room in the structure of the X1C that a small forced air heater with a little 4020 fan along with the heated bed would get that chamber up to temp pretty quick and could be tucked in the back panel at the bottom beside the rear z rod
Mmmmmaybe
It certainly does, typically 15-30 minutes, but if you are printing large functional parts in ABS that you do not want to warp, ensuring a high ambient temperature is a must to prevent warpage.
Would love to see this command added to X1C and P1S. Understandably P1S does not have a chamber temperature sensor, Iâll happily settle for M109 waiting for temp to rise to approximate the chamber temp. M109 seems to turn on the nozzle heater which totally defeats my workaround to use nozzle temp to monitor chamber temp.
It feels like this has been unavailable for an unreasonably long time in comparison to how hard it is to implement. You sell like 900 different filaments that requires a heated chamber, so can you please set up some supports for heating said chamber?