First successful print with the Y splitter on the Di3.

3D Printing
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First successful print with the Y splitter on the Di3. Quite an elegant filament setup if you ask me.

The quad input y splitter @Alex_Skoruppa designed per my request was giving me trouble, filament was catching at the 4–>1 channel merge point, I think we need to widen this and create more of a teardrop shape there.

Anyways, this is the 2–>1 from aliexpress. I’m using the scarou extruder with E3D hobbgoblin gears. All the filament changing is happening via scripts at the left edge of the bed, the prime pillar was really just there to catch any remnants of the purge. I haven’t created a dump bucket for this setup yet, but when I do it is slated to clip to the 2 x shafts at the right end of the axis.

I’ve learned that the tool change retraction value in s3d is total, not on top of the regular retraction, so the strings you’re seeing are because I had that set to zero. Setting it to he default retraction value should fix that. Time to print something bigger.

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So that’s how the splitters are used… I was wondering because at first I thought they were all being crammed together but that didn’t make any sense and seemed impossible. Now I realize that you use different colors and retract one so that you can run a different color. Pretty fancy!

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did you use a second printer as a spool holder? :smiley:

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Yes, the i3+ on the left is solely being used as a spool holder for the cheaper Di3 next to it doing this work.

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Looks really cool! Do you mind sharing a link where I can find more info about it?

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That would require a link to exist :slight_smile:
Here’s a quick rant with more details:

Rough details include: Cohesion3D ReMix board: 3 extruders + another A4988 hooked up to some gpio pins for the 4th, Smoothie compiled for 7 axis…
scarou extruder and E3D hobb goblin gear in it. Bondtech would be better.
I designed a clip that mounts said extruder to the top frame beam of the i3v2. It gets pliers-snapped into place.

There should be room to put 4 extruders on the top beam, but the filament has to be off site like the prusa mmu has the separate holder.

It needs a purge bucket. Ah, I have made conversions to use the narrowest possible E3Dv6 Bowden head possible with (replaced) single lm8uu not the stock long one. Not sure if I’ve induced wobble.
I intend to design a bucket that will clip to the far right end of the x axis.
Genuine E3D v6, a bunch of pneumatic fittings for the extruders, and 1.9mm ID ptfe tubing for the E3D - splitter section.