Is there a particular reason why the bed calibration is performed at a nozzle temperature of 130C?
The printer seems to be wasting a lot of time heating the nozzle to 200C in order to clean it, then cooling it to 130C to perform the bed calibration, only to reheat it to >200C for printing.
I assume it’s because if you have filament loaded it will not ooze at 130*.
That makes sense, thank you!
I was wondering if anyone has tried any ways to speed-up the pre-printing routine. Perhaps instead of heating the bed and nozzle separately, it should be done at the same time?
You can do this if you change the start gcode.
I don’t remember what the start gcode sequence is, but you have to use M104 instead of M109 for the nozzle and leave M190 for the bed.
I recommend you start with M104 and then M190 so that the nozzle and bed reach the right temperature before continuing with the process.
It only heats the nozzle for this purpose at the factory. To clean it, it heats it to 200 and then cools it down to 130°C. This cannot be accelerated. I preheat the print bed to 40°C beforehand. Sure. Printing can be started immediately after the command and the nozzle is heated while the print bed is heating up. But it makes sense to wait a few minutes. The thermistor only measures at one point on the print bed. But the print bed does not heat up as evenly quickly. During the heating time of the nozzle, the heat is evenly distributed across the print bed and the thermal distortion when measuring the print bed is more realistic.