Prototype Filament Splitter, printing a demo now.

Prototype Filament Splitter, printing a demo now. Its not fully functional I need to figure out how to capture the PTFE tubes. Prefer that to be built in clamps, split taper of some sort. Or just press fit pneumatic fittings, but I would like to just use the plastic part of those and have the metal plug internal geometry built into the splitter.

It might mount with a separate clamp ring to the 3 screw holes on the top of the effector E3D clamp plates. The stub of PTFE down into the E3Dv6 might be enough if its well secured in the splitter. Any ideas on capturing that tube, but allowing for removal, are appreciated.

Would love comments, on the internal curvature especially. I wonder if it’s too tight a radius.

I’ve been wanting a good split taper type connector for PTFE tube forever. It’s just so dang slippery :-/

@Ryan_Carlyle I wonder if the tubing comes in a version with external ribbing? would be nice for making a ratchet type fitting with a release button. I am going to make a jig for making grooves in the last inch or so of a PTFE tube and try this out. the jig will cut the grooves using sections of snap off utility knife blades, and be 3d printed of course.

Lots of people use an M4 die so they can thread a nut on the end. That’s a pretty reasonable approach. A tube with some natural bend in it won’t rotate enough to back out.

Look at Ermetto fittings or swagelok fittings to hold the tube.

Just go for these kinds of bowden clamps and print the matching outer geometry into your printed part:

I have done that before with great success: