Tool Board Heater Tuning Leading To Faults
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
@fcwilt I've commented out all heaters except H2, autotuning now.
"M308 S2 P"21.temp0" Y"pt1000" A"Ex1"
M950 H2 C"21.out0" T2 ; Heater for extruder out tool 1
M307 H2 R2.050 C309.100:130.600 D6.20 S1.00 V24.3 B0
M570 H2 P10 T25 S0.1"Worth a try.
At some point did you verify that each tool board is actually at the address you are using?
Frederick
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@fcwilt Yes, toolboards are at the addresses assigned
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Can you send M98 P"config.g" to check for any syntax errors?
I'd also suggest generating a basic config using the online tool and trying with that.
Perhaps a photo of the hotend itself my give us some clues.
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
@fcwilt Yes, toolboards are at the addresses assigned
I've got a test setup on my workbench but it only has one tool board connected and it works fine.
Perhaps there is some as yet undiscovered firmware problem that only manifests with multiple tool boards.
Frederick
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@fcwilt @dc42
Here's my new, super simple configM550 P"ToolChanger" ; Set machine name M111 S0 ; Debug off M929 P"eventlog.txt" S1 ; Start logging to file eventlog.txt M555 P1 ; Set RepRap output G4 S1 ; Wait for expansion boards to start M308 S2 P"21.temp0" Y"pt1000" A"Ex1" M950 H2 C"21.out0" T2 ; Heater for extruder out tool 1 M307 H2 R2.063 C316.300:132.500 D6.10 S1.00 V24.3 B0 M143 H2 S300 M950 F11 C"21.out2" M106 P11 S255 H2 T70 M950 F1 C"21.out1" M563 P1 S"Tool1" H2 F1 G10 P1 S220 R205 M570 H2 P10 T25 S0.1 G29 S2 T-1 M501 ; Load config-override.g -
boom, fault at 70c
It's most commonly faulting at 70c, which is when my hotend cooling fan is enabled
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
M307 H2 R2.063 C316.300:132.500 D6.10 S1.00 V24.3 B0
@kevinmar said in Tool Board Heater Tuning Leading To Faults:
M501 ; Load config-override.gDoes that M307 line match what gets loaded by config-override?
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@phaedrux always
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And if you execute M98 P"config.g" does it show any errors?
If you delete config-override.g completely and remove the M307 line entirely from config.g, reboot the board and tune from scratch and save with M500 does it produce the same M307 line?
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
boom, fault at 70c
Drat.
Does the fault occur when the temp is rising? peaked? dropping?
Did you leave all the tool boards connected?
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@fcwilt All boards connected, happens ALWAYS when heating up. Never reaches peak or anything
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
@fcwilt All boards connected, happens ALWAYS when heating up. Never reaches peak or anything
But it seems to be happening when the cooling fan kicks in?
Have you changed the temp of the cooling fan to see if the fault tracks that temp?
How about adding a M570 for that heater and increase the default P parameter value (5) to something like 30.
Frederick
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@fcwilt Yeah, lowered the fan temp to 50, still faulted at about 78C.
M750 is at P10, will raise to 30
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
@fcwilt Yeah, lowered the fan temp to 50, still faulted at about 78C.
M750 is at P10, will raise to 30
I'm interested to see which parameters affect when the fault occurs.
It seems we don't know exactly what condition is occurring that is triggering the fault.
Does a M122 report anything related to the fault?
Frederick
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I'd still like to see a photo of the hotend in case there is something obvious.
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@phaedrux said in Tool Board Heater Tuning Leading To Faults:
I'd still like to see a photo of the hotend in case there is something obvious.
Perhaps you know the answer to this question.
He posted a screen shot showing 3 heaters displaying a fault.
Does a single heater faulting cause all heaters to display a fault or did all three heaters have to fault at the same time?
Frederick
Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6
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@phaedrux Ask and you shall receive
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@fcwilt It's a printer with 4 tools, just so happened that the 4th tool continued heating to ~120C before faulting (different M307 parameters). All 4 tools have the issue
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@fcwilt said in Tool Board Heater Tuning Leading To Faults:
Does a single heater faulting cause all heaters to display a fault or did all three heaters have to fault at the same time?
I can't quite tell from that photo, but is the heater block itself making contact with the body of the extruder, or is there an air gap exposing the heat break?
Is there any adjustability on the duct to lower it slightly to direct more air away from the block/nozzle itself?
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@phaedrux The Hemera tool and V6 hotend are assembled correctly.
There is no adjustability to the fan duct, but the ducting is aimed down to the nozzle. It's a fan duct by Rene Jurack, evaluated by an aerodynamicist at BMW
