RRF Config Mapping

dc42

As you have no DueX, you are not connecting the servo pin of the BLTouch duex.pwm5, so you should not use that selection in configtool or config.g. Use the name of the actual pin that you have connected it to, which is exp.heater7, and don't invert it. Although as it happens, using duex.pwm5 and inverting it will work.

printthatthing

@dc42 Aha, okay that make sense.

Phaedrux

@dc42 said in RRF Config Mapping:

so you should not use that selection in configtool

Unfortunately the config tool currently doesn't show the expansion pins right now, just duex pins.

Phaedrux

@printthatthing said in RRF Config Mapping:

Is the heatmap very bad or ok to use without adjustments?

That's a bit of a saddle shape for sure. You may or may not be able to fix that physically. You can test the effect of the compensation by printing a bed test like this: bedlevel_nozzle_0.4_200x200-0.3-0.8.stl

printthatthing

@Phaedrux Ok thanks.

printthatthing

Now I'm stuck with error at bed heating.
Error: Heater 0 fault: temperature rising much more slowly than the expected 1.7°C/sec
Duet 2 Wifi power a solid state relay for a 220v heater.

I executed M307 H0 S90
M307 H0 results in below.
Heater 0 model: gain 340.0, time constant 140.0, dead time 5.5, max PWM 1.00, calibration voltage 0.0, mode bang-bang

Then I tried to save the value
M307 H0 A340 C140 D5.5 V0 B0
But it result in
Warning: M307: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 365C

Phaedrux

That's expected. The warning is letting you know what the max uncontrolled temp could be.

printthatthing

@Phaedrux Ok, but I still not able to heat the bed. It start heating but halt after few seconds. Error: Heater 0 fault: temperature rising much more slowly than the expected 1.7°C/sec

Phaedrux

Are you sure you saved the PID tuning results with M500? Do you also have an M501 at the end of config.g to load the saved results?

printthatthing

@Phaedrux i was missing M501 in config.g
Restarted boad but getting same error when trying to heat bed.
Tried to run M307 H0 S90 again but it fails with Error: M307: bad model parameters

; config-override.g file generated in response to M500 at 2020-07-10 23:02
; This is a system-generated file - do not edit
; Heater model parameters
M307 H0 A340.0 C140.0 D5.5 S1.00 V0.0 B1
M307 H1 A340.0 C140.0 D5.5 S1.00 V0.0 B0
; Workplace coordinates
G10 L2 P1 X0.00 Y0.00 Z0.00
G10 L2 P2 X0.00 Y0.00 Z0.00
G10 L2 P3 X0.00 Y0.00 Z0.00
G10 L2 P4 X0.00 Y0.00 Z0.00
G10 L2 P5 X0.00 Y0.00 Z0.00
G10 L2 P6 X0.00 Y0.00 Z0.00
G10 L2 P7 X0.00 Y0.00 Z0.00
G10 L2 P8 X0.00 Y0.00 Z0.00
G10 L2 P9 X0.00 Y0.00 Z0.00

Phaedrux

In config.g change M307 H0 B1 S1.00 to B0

Then delete your config-override.g and run M307 H0 S90 again after a reboot. Then save with M500.

Phaedrux

Also make sure you're starting from a cold bed state.

printthatthing

@Phaedrux said in RRF Config Mapping:

Executed M307 H0 S90 after the suggested changes.
Error: M307: bad model parameters

Update:
My bad, it might be M303 H0 S90

Phaedrux

@printthatthing said in RRF Config Mapping:

Update:
My bad, it might be M303 H0 S90

Yes of course.

printthatthing

@Phaedrux said in RRF Config Mapping:

@printthatthing said in RRF Config Mapping:

Update:
My bad, it might be M303 H0 S90

Yes of course.

Now it works fine:) Thank you so much for all support.