temperature channels on remapped Duet
January 21, 2016 03:56AM
Hello!

I am building a CoreXY printer with multiple extruders. It is a CoreXY (allthough my problem is not about that, probably) with Duet 0.8.5 (with the extension board) and external drivers for XYZ. Now I am facing a problem with the temperature channels (and probably also with the heaters). What are the channels to map them? Here is my config on that part:

M305 P100 T100000 B3650 R4700 H0 L0
M305 P101 T100000 B3650 R4700 H0 L0
M305 P102 T100000 B3650 R4700 H0 L0
M305 P103 T100000 B3650 R4700 H0 L0
M305 P104 T100000 B3850 R4700 H0 L0
M305 P105 T100000 B3850 R4700 H0 L0
M305 P106 T100000 B3850 R4700 H0 L0

;M570 S180 ; Hot end may be a little slow to heat up so allow it 180 seconds

; Tools
M563 P0 D2 H3
M563 P1 D1:4 H2:5
M563 P2 D0:2:4 H1:3:5
M563 P3 D0:2:3:5 H1:3:4:6
M563 P4 D0:1:2:3:4 H1:2:3:4:5
M563 P5 D0:1:2:3:4:5 H1:2:3:4:5:6

I only can measure temp1 and bed temp, the rest show -273.1 what ever I do. Also, the temperatures in temp1 and bedtemp are very different with the same thermistor, allthough the settings are the same. I am using awesome Paneldue to see the stuff.

Any advice very much appreciated!

Edited 2 time(s). Last edit at 01/21/2016 09:03AM by PropellerHat.
Re: temperature channels on remapped Duet
January 21, 2016 04:32AM
Your M305 commands are wrong, because heaters are numbered from 0 (for the bed) up to 6, not from 100 to 106.



Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
Re: temperature channels on remapped Duet
January 21, 2016 04:56AM
I had them 0-6 in the beginning. Then I read from from somwhere (can't remember was it from Think3dPrint3d or other Duet guide) that in recent Reprap firmware they start from 100 to implement thermocouples. It might have been some other reason for them not to work with channels 0-6 too, for sure. I'll try them again in a couple of hours. Thanks for the fast reply!
Re: temperature channels on remapped Duet
January 21, 2016 09:10AM
I changed the channels to 0-6 and the same extruders show temperature as with the previous channel numbers, allthough much more realistic temperatures. The rest remain in the -273,1°C. I am tempted to dismantle the wiring and trying with another Duet.
Re: temperature channels on remapped Duet
January 21, 2016 03:00PM
Sounds like you have no analog ground connection on the DueX4. Check T3P3's blog for the correct way to set the analog ground jumper on the DueX4 when it is connected to a Duet 0.8.5.



Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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