Help with extruder feed calibration - please!

Hi,

I've just fitted herringbone gears to the extruder motor (thanks iamburny) and wanted to check the feed calibration with the old felt mark, then extrude 100mm and check actual length. But for the life of me, I can't get that blasted thing to manually extrude. Am using the web interface, but have also tried it on Pronterface. No doubt I'm missing some vital step. I did it ok when the printer was first commissioned for goodness sake!

So can someone put me out of my misery by figuring out what's missing?

Thanks,
Ralph

Make sure you have a tool selected (e.g. send T0), and enable cold extrusion with M302 P1.

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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].

Phew - thanks. Was missing the tool select step. All done.

Thanks a lot.

I'm still putting my O2 together (Yes I'm taking my time) and wanted to know if there is a PDF or something that has a list of all these different commands and what they are used for?
How would I know to send a T0 and then M302 P1 to test the extruder?

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dc42
Make sure you have a tool selected (e.g. send T0), and enable cold extrusion with M302 P1.

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brlowe
I'm still putting my O2 together (Yes I'm taking my time) and wanted to know if there is a PDF or something that has a list of all these different commands and what they are used for?

[reprap.org] lists all the commands used for all printers (not all are supported by the Duet firmware but it should be sufficient for most purposes).

Dave

Thank you Dave.
I'm starting to wire mine up today so should be powering up and working on commands later in the week. This Doc will come in helpful once I start doing that so I know what I'm doing.

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dmould

Quote
brlowe
I'm still putting my O2 together (Yes I'm taking my time) and wanted to know if there is a PDF or something that has a list of all these different commands and what they are used for?

[reprap.org] lists all the commands used for all printers (not all are supported by the Duet firmware but it should be sufficient for most purposes).

Dave

Also see the RepRapFirmware configuration guide I posted at [reprap.org].

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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].