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Disable heater safety?

Posted by CJ.BRAVO

CJ.BRAVO

Disable heater safety?
May 16, 2019 09:56AM

Registered: 3 years ago
Posts: 18

Hey there, trying to run an Extruder without the heater. Heater and thermistor aren't connected.

When trying to run extruder tool I get a warning :

M120
M83
G1 E10 F900
M121

Warning: Tool 0 was not driven because its heater temperatures were not high enough or it has a heater fault

thoughts?

Cheers!

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dc42

Re: Disable heater safety?
May 16, 2019 10:00AM

Registered: 9 years ago
Posts: 14,639

In the M563 tool definition command(s) in config.g, remove the H parameter. Then the tool will not use any heaters.

Alternatively, use M302 to enable cold extrusion.

Edited 1 time(s). Last edit at 05/16/2019 10:00AM by dc42.

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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CJ.BRAVO

Re: Disable heater safety?
May 16, 2019 10:29AM

Registered: 3 years ago
Posts: 18

Cool thanks, it worked.

If already on the subject- why is driver D0 ? it starts the count from 0 as in the E0 ? and not driver number 0 (X ? )

Thanks!

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dc42

Re: Disable heater safety?
May 16, 2019 03:21PM

Registered: 9 years ago
Posts: 14,639

Extruders are numbered 0, 1, 2 etc. and it is the extruder number(s) that you specIfy in M563. The mapping from extruders to motor outputs on the Duet can be anything you like, see the M584 command.

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].