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So trying to print a set of pieces for Airtripper's extruder and boof - My bowden popped off, probably from all the retracts hammering away on a jammed head that I didn't notice. So now the tube no longer locks. I have more already enroute from HK I ordered a week ago, but they could take awhile before they show up. Anyone have a short term solution? Any retrofits?

Can you cut off the "bad part" off the end of the teflon tube, or am I not understanding what happened? You can take a M4 nut and thread the tube onto the nut, and then find a way to print a mount for it that locks the nut in place. Do you think you can post a picture of what happened?

If you can put the tube back into the PTC, use a small amount of quick setting epoxy on the outside of the tube and insert it into the PTC until the new ones arrive.

Nylocke, I think the lock on the push fit is broken, I reversed the tube and both sides pop out the same way, they seem to lock fine on the hot end side of things. The M4 nut is a good idea, too, I think I can incorporate it into the new extruder I am making, but I'm not sure what I can do with the Steve's I am currently suffering with. I guess I will try gluing it as suggested by Eaglezsoar - good thing I have more tubing on route as well! When my hobbed bolt shows up I'll slap together a Wade's and hopefully that'll make life better.

Thanks for the feedback, hopefully I can resurrect this train wreck of a printer... Never a dull moment!

Had the same problem. Clean out your nozzle, it probably vomited tiny shards of metal from the teeth that hold it in place.

I've got a thread about using Superglue to revive a dead PTC fitting. You can see it here: http://forum.seemecnc.com/viewtopic.php?f=37&t=2253

If you want to order PTC fittings with fast shipping, Amazon has them: http://www.amazon.com/gp/product/B0065R ... UTF8&psc=1

They don't like to let go of the Bowden tube without a fight, which can be a pain, but they do work.