Chamber pre heat involve 115degC bed setpoint : then bed over heat
i print into a cold room so chamber pre-heat are essential to me , and that's one of the reason i bought the core one
Both current 6.3.4 and beta 6.4.0 firmware are causing me extended delays because of bed over heat :
--any prints with a chamber pre-heat request will set bed temperature at 115degC while pre heat the chamber
--my print area room temperature is often as low as 14degC in winter : even PLA will warp at those low temp
--ounce chamber setpoint reached , the bed will be way too hot , than the bed cooling add lots of time before the print start
--i would like Prusa to change its CoreOne firware so the bed initial setpoint be the same as first layer print setpoint while pre heating the chamber , and makre shure that all print immediatly engage chamber preheat / appropriate bed setpoint at any print launch
--to avoid delays , i have to manually set/change chamber/bed setpoint while every print starts (tune menu)
Printing since 2019 , Ex MK3s owner , current Core One Kit owner
RE:
You can change that in the g-code to something like:
{if chamber_minimal_temperature[initial_tool]!=0 and filament_type[0] != "PLA"}
M140 S115 ; set bed temp for chamber heating
{else}
M140 S[first_layer_bed_temperature] ; set bed temp
{endif}
For me, I replace the above with just M140 S[first_layer_bed_temperature] and use a hairdryer to preheat the chamber. Of course if you are not in front of the printer a hairdryer doesn't help. Would be nice if Prusa had an active heater option available.
RE:
thanks for all these quick reply/Help Hyiger ! 🤩
i was not familiar with Gcode editng (bought Prusa for easy out of box use) , found the 115 setpoint and made a costum printer profile with 59 that i will chose for most of my prints : here how :
Printing since 2019 , Ex MK3s owner , current Core One Kit owner