Heatbed temperature calibration?
Hi,
I already made PID tuning for my extruder and the fluctuations are gone now.
But I also measured the temperature on the heatbed - and it tends to stay 3-5 degrees below the value shown (e.g. display shows 55°C, I measure 50°C).
I found, that there's also a heatbed calibration available in Marlin:
M303 E-1 S60 c8
My question: Is this possible on the MK2S as well?
I searched the forum and the internet in general, but I didn't find a reliable answer.
Thank you!
Re: Heatbed temperature calibration?
My question: Is this possible on the MK2S as well?
Yes. Apply the settings using M304.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Heatbed temperature calibration?
details could be found here.
dem inscheniör is' nix zu schwör...
Re: Heatbed temperature calibration?
Jeff, peter: thank you - I was able to calibrate the heatbed.
One remark: I tuned the heatbed at 100° which is correct now (100° = 100°). When I do use lower temps (like 55° for PLA), there's still a difference of 5° (55° on the display = 50° on the heatbed).
And: It took way longer than calibrating the extruder
Re: Heatbed temperature calibration?
Yes, there will be; you need to calibrate the different temps.
This is why I include the various PID values in slicer gcode (related to the material used).
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Heatbed temperature calibration?
You mean, you send the M301/M304 command at the beginning of your gcode to the printer?
Good idea! Is it necessary to store them with M500 also (as part of the "preprocessing" gcode?)
Re: Heatbed temperature calibration?
No it's not necessary to store them in E^2
Here's an example of my start GCode:
; Prefix G-Code
T<EXT+0>
M201 X1500 Y1500 E900 ; set default acceleration
M301 P23.14 I1.78 D75.12 ; set PD for extruder heater
M304 P56.09 I2.39 D328.54 ; set PID for bed heater
G21 ; set units to millimeters
G90 ; use absolute coordinates
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…