Duet Controlled CoreXY - latest Firmware and Install Proceedure? (67 replies)

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dc42
There is a list of resources here [reprap.org]. Here is a summary of what you need to do:

1. Download a binary of my firmware fork (the only one that currently supports CoreXY) from [github.com]. Follow the link to the latest version, then click on the Raw button to download it.

2. See the RepRapPro commissioning guide at [reprappro.com] for how to flash the firmware and copy the SD card files across. I suggest you start from the SD card files used for Ormerod 2. You will need to make a couple of changes for CoreXY:

(a) Add the M667 S1 command in config.g to select CoreXY mode. See [github.com]. I suggest you read the whole of that document, apart fro the section on delta printers.

(b) Change the homeall.g file so as not to attempt simultaneous X and Y homing.

I'll add a /sys-CoreXY folder to my repo to make this simpler in future.

3. Then follow the RepRapPro commissioning guide for general testing and commissioning.

4. The web interface I recommend is DuetWebControl, available at [github.com].

btw on a CoreXY machine, you can test the X and Y motors individually by sending G91 to select relative position, then G1 commands with the S2 parameter will move the motors individually, e.g. G1 X-10 S2 will move just the X motor back 10mm.

Once you have up-to-date firmware, you can also update SD card files via FTP.

HTH David

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dc42
PS you should also change the M574 command to define where your endstops are, and the M558 command to say which axes (if any) the proximity sensor is used to home - default is X and Z.

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dc42
I have added folder [github.com] to my repo.