The thing they thread on the Teflon tubing is a barrel nut. I don't use them for any configuration. Those are the bane of Cube3!
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I'll send you the one I took off that nozzleIt'll be in the mail tomorrow.
t's-already to go.
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OD is 3/8", t=.015", tube OD=.134 (ID is exactly 3mm! Get the drill bit; down 20mm 'til you hit aluminum)
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The push-nut should be there Monday, Shawn. It's taped to a sticky note.
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Here's what the insides of the nozzle look like in case you're interested Shawn...
nozzle_insides.PNG
This one was carbon-poisoned by burnt PLA switching to ABS.
I try to keep high temp nozzle for ABS and PETG separate from PLA/low temp nozzles.