Bowden Tube Conversion for Gregs or Wades Extruder, Threaded Fittings.
by inthebay, published
This design takes two 1/8 Pipe thread fittings and whatever size tube you choose to use for your bowden tube. I used these parts:
mcmaster.com/#5449k173/=piy2zb - Push Tube Fittings
mcmaster.com/#52335k53/=piy3p1 - 3mm ID tubing
This tubing was a bit snug on true 3mm filament, but my local supplier's filament is undersize. You may wish to use tube with 1/8" ID to give some more wiggle room.
Good luck, and enjoy the fast vibration free printing, I saw an instant 50% increase in movement speed, with faster printing to come with more tuning!
The fit is tight on the threaded fitting, by the way, if you do not have a tap (common in most sets) you can chamfer out the piece with a razor.
Video of printing here: youtu.be/AiU8ncPwO5c
EDIT 1: I have updated the design files extensively, they now contain a family table and adjusted files to accomodate 1/8"NPT, 1/4" NPT, and I am currently experimenting with a straight tube to tube connector that may work, hence why it is tagged as "Experimental"
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It look like the parts are mis-labled. On the extruder side, the hole sizes are mixed up. The hot end side has the same size hole for all the sizes.
I've had it up to 150mm/sec, but I started having vibratory issues with my frame, as it had loosened up over time. Comfortably printing at 100mm/sec now.
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