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UM2+ dual head / single extrusion

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Hello guys,

I want to run different tests on my UM2+, basically I want to be able to toy a bit with a head (heat block, nozzle, cartdridge, feeder, etc.) but I want to keep the abilities to print.

So I was thinking of keeping my stock head, and building the custom made one next to it, on the available slot. To avoid the nozzle collision issue, I'll just have to install the nozzle of the head I want to use... But I do not know how to do it properly at a software level. The aim is to be as smooth as possible when using a head or the other.

If you happen to know some documentation I did not find, I'll be glad to know ! For the moment the doc about dual head / dual extrusion are not giving me answers.

And if you have any ideas how to do that... I'll be very happy to hear !

Thanks for the help and have a nice day đŸ™‚

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I'm still having issues on this subject but so far i've pieced together


Extrusion upgrade kit (hardware)

Tinkerware (firmware)

Use Marlin GCode from Cura

Make custom Start and End Code in cura


Still trying to get tinkerware to work well with dual extrusion without having head travel issues. It could be start and end code that cura is inserting...


Also If you upgrade your cura to 3.4.1 and delete the base printer cura thinks that it is corrupt and if you say yes to the window that pops up it will delete all your custom machine configurations that you create.

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