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bondtech QR extruding in the wrong direction

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Posted · bondtech QR extruding in the wrong direction


i have had some massive problems with my UMO lately, and at last it seemed the main extruder stepper motor had failed me (things printed fine when i re-wired the second extruder and heater and stuff)

So, after some grumbling, i bought a BondTech QR.

I just hooked it up, but unfortunately, it does not extrude. It retracts instead (that means: there is one side with a bowden fixture. I was hoping the filament was extruded in that direction. But it came out on the other end. Nice and slow, but in the wrong direction.)

Can anybody help me solve this issue?

And by the way: The bondtech wants different e-steps than my second extruder (which is an ultimaker Original dual extrusion kit part)

Is there any way to use both of them?

This latter part is not very important, it would simply help passing the time until the second bondtech arrives)

Thanks in advance!

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    Posted · bondtech QR extruding in the wrong direction

    I think all your problems can be fixed if you read the manual (link its bondtech.se/docs I think)

    You can reverse two cables on the extruder to reverse it. Or you can install @amedee firmware builder that has the option the reverse the feeder. Link to the builder and some basic help to build the firmware https://ultimaker.com/en/resources/20983-ultimaker-original-custom-firmware-builder

    Also. Ultimaker Marlin only allows one estep for all the feeders. So you might need to add the gcode (google marlin ultimaker gcode for the complete list) and send the correct esteps at the beginning of your gcode (for example a quick fix).

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    Posted · bondtech QR extruding in the wrong direction

    I think all your problems can be fixed if you read the manual (link its bondtech.se/docs I think)


    Thank you! I had checked the website of the reseller i got it from, but not of the maufacturer...

    Oh well. it was not my best day anyway...

    Thank you for your quick reply!

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