D6/MMU cable clip head cap with push-THROUGH connector

Second "push-through" version! (July 15 '19)

Okay, so with my push-fit cap, I was having a terrible time getting the filament all the way down to the lever arm without bending and missing it. The filament hole in the bracket into which this cap screws is really loose and doesn't guide the filament well.

Hmm... maybe I could slide an extra piece of PTFE tubing in there? Yeah, that works pretty good, though I have cheap tubing that's over 4mm OD so it was a really tight fit.

Oh, duh... maybe the PTFE tubing is supposed to go down there all in one piece? Yeah, that would be better. (Maybe this is explained in the Wanhao original manual, but I got an openbox of Monoprice's clone.)

So, here's a revised design a 9mm hole to accommodate the push-through style of tubing fitting. Took me about 20 minutes to sand my cheap tubing enough that I could put it through, but I think it was worth it!

You know, as I think through it further, Wulz's original design would probably have worked just fine if I'd had PTFE with an OD just under 4mm instead of just over. The pressure from the hole through the bracket piece likely have been enough to resist backing out. Ah, well... I'd already bought the fittings :-)

Print Settings

Supports:

Yes

Resolution:

0.2

Filament: Hatchbox ABS black

Notes:

After kludging the push-in version, I realized I did have a set of metric taps after all! But they go up only to M8 and this is M9 :-( If you have that tap, great! Tap the hole.

If you don't, what I did was to use whittle out a bit of a countersink from the top to help the fitting self-tap, then used my SMD rework station's hot air blower to heat up just that support ring and a wrench to help tap it into the softened plastic. A hair dryer or heat gun would surely work (wear gloves!), but the SMD station is nice and precise in both area heated and temperature.

Since I'd used ABS, I also tried softening it with acetone. That didn't work too well, probably 'cause I wasn't very patient.

Category: 3D Printer Accessories