PrintDry PTFE tube adapter plugs
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Replaces the stock metal fittings with straight-thru fittings that won't hold a PTFE tube.
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- Printables
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- Accessories
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My PrintDry system came with metal fittings that were a straight-thru hole of about 6.8-6.9mm. Not sure what is supposed to be used with these as a standard 4mm PTFE tube passes right through. I designed these parts to replace those fittings with something that will work nicely with the PTFE tube.
Important note about installation!
The original metal fittings pass through bushings that act as spacers between the two walls of the PrintDry container. If you remove those metal fittings, that bushing is free to move and might fall out of place. When you're ready to remove the metal bushing, press against the wall to hold the bushing in place, or orient it such that the bushing won't fall out of place.
I discovered this the hard way, make your life easier and follow those recommendations.
Models
Three models are included:
- PTFE adapter
Has a 4mm hole that accepts the PTFE tube. This is the simplest and the one I recommend, because you do not need a collet. There should be no forces pulling the PTFE tube out, so there's no call for the collet. - PTFE BSP adapter
Okay, you're somehow convinced you still need a collet? Use this one. Most fittings marked PC4-M10 are not an M10x1 thread as they say, but 1/8"x28 British Standard Pipe thread - aka BSP. I have not come across an “M10” fitting that is actually M10 yet, and yes, I've been looking. - PTFE M10 adapter
Okay, you still think you need a collet (you don't) and don't believe me that most of these fittings are BSP, not M10x1? Use this one.
Printing
Printing is easy, no supports are needed, they should print with the external threads pointing up. Print in any material that can handle the heat you'll be running in your PrintDry (which pretty much excludes PLA) and you can up the shells if you think it's necessary, but as long as you remember this is plastic and doesn't need to be cranked down, even standard 2 shells works. I've printed at a 0.2mm layer height (0.4mm nozzle) with excellent results.