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Bowden cable push-fit connectors for Techzone Huxley

by DeuxVis, published

Bowden cable push-fit connectors for Techzone Huxley by DeuxVis Feb 8, 2012
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Summary

A pair of replacements clamps to retain your Techzone Huxley bowden cable using 6-R1/8 straight push-fit pneumatic fast connectors.

All my attempts to retain my ptfe bowden cable before that turned into a failure sooner or later. Now that I use those, I have zero trouble, and it's sooo helpfull for filament unloading/reloading to be able to quickly disconnect the bowden tubing.

Idea came from the ultimaker machine.

Instructions

1) Print using some tiny layer height, as the threads will not be usable otherwise. I used 0.1 mm layer height, I suspect anything above 0.2 would fail ?

2) While the part is still hot (don't use active cooling there), quickly manually screw in a 6-R1/8 straight connector (like for instance http://www.conrad.com/6-R1%2f8-straight-connection.htm?websale7=conrad-int&p%69=580576&ci=SHOP_AREA_17410_0203904). Depending on how fast you screw it you might not be able reach the bottom, it doesn't matter (see photo of my extruder side connector). You might want to print the 2 parts separately to be able to screw fast enough.

3) Replace the old clamps with those.

4) Plug in (by simply pushing it firmly in) some PTFE tubing cut to appropriate length. It must be 6mm external diameter. I had to buy 10 meters so if you need a little piece I can sell you some, see my emakershop listing : http://www.emakershop.com/listing?l=196

5) You can easily unplug the tube by retaining the moving ring in its lower position while pulling on the PTFE.

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I made them for my metal gear system extruder, wich has normal extruder holes. So i edited openscad and now it fits all my extruders, my wades, mgs and others. I had to thread the threads with a machining tool, but it works perfect.
Ill upload my remix tomorrow.

Can't use this on what I'm using. The pneufit coupler doesn't fit and the bolt-distance isn't correct for what I'm using. Guess I'll have to re-design :)

Sure, that's why openscad sources are provided : if it doesn't suit your need, evolve it !

Hey thanks for your reply, I tried rendering it in openSCAD, but it takes five minutes, so I have decided to re-design the thing in Rhino, just because I want to learn that program :)

Soon I will start learning openSCAD after I master Rhino a bit more, and I will re-design my parts in that language.

while working on the general layout, change "renderrodthreads" to false in the "rod" call.
It will disable the thread and allow warp speed renderings.

Still in the process, but I have already finished the connectors a long time ago for pneufit holders.

Created them from scratch! But meanwhile I got so busy that I designed a whole new X-carriage for the MendelMax I'm using :)

I now have a bowden setup using two of these connectors and anyone can use them because they have standard hole-spacing for things like Greg's Wade Extruder and others.

Are you still working on designing new parts for printers?

Well not for this printer currently...

Hi,

I just ordered the adaptors and the tubing to make mine bowden.
It's a Ditto from tinkerine, can you help me making the part fit the original one on my printer ?

Thanks a lot
Eric

Could you provide a link to your machine technical reference and especially the parts you want to plug into this one ?

Sorry.. didn't see the reply...
I did them myself finaly without any thread inside, just a bit smaller than the thread.

http://farm9.staticflickr.com/8226/8584484164_b29fe83d1c_o.jpghttp://farm9.staticflickr.com/...

Great, glad you could use it.

How can I adjust the distance of the mounting screw holes in the scad file?

Basically bolt to center right and left parameters.
Let me know what distance(s) you need if you cannot get what I mean, I'll make you a modified one.

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