YES! It is a ways after I had planned on doing it,

3D Printing
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YES! It is a ways after I had planned on doing it, but I am FINALLY dual-extruding! (does the happy dance)

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Next up: dual extrusion booger reduction
LOL

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I might need to calibrate my nozzle offsets too. My test piece joined incompletely.

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Ooze is a big deal with dual extrusion, so it takes some extra care. I had to do some custom tool change code to make sure it retracts a sufficient distance before switching, for one. Marlin is pretty stupid about that.

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I had to do some math to lie to cura because it didn’t have a nozzle diameter for each extruder and I have 2 different sized nozzles. lol I essentially told it my thicker nozzle had a smaller diameter filament so it would feed it more filament.

Yes, I will have to check my retracts and such. I might even have to use wipe towers or other wipe settings. I thought I already had my retracts set high enough, but I suppose it could have been low.

I will play with this more tomorrow, I hope.

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Come to think of it, since Cura only lets me give 1 nozzle size, my larger nozzle may print on top of things that it shouldn’t. I may have to slice with Slic3r or some other non-Cura slicer if I want to have accurate dual extrusion gcode.

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Hmmmm…for the idea of using the 2nd (larger nozzle) extruder just for infill though and giving it cheaper/homemade filament, Cura may do well enough though.

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I had to adjust the EEPROM for my printer. It seems adjusting just the firmware would not work. Now I have Cura tuned as well as I can and Slic3r does pretty darn good, but I need to recalibrate my filaments for Slic3r since it is under-extruding on white and over-extruding on black.