High performance bowden links
by hdonk, published
I haven't yet printed with them, but we shall see!
I tried pulling the end off the tube, but didn't succeed. I don't have any spare PTFE to do a destructive test tho.
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That was one of my concerns when I made this, but everything seems fine.
I suspect if it became a problem you could use offcuts of 3mm filament in the holes, then put some tape around the block - then no thread issue.
I've always used the threaded nut method, but instead of cutting threads in it, I've always just forced the nut on, and then drilled out the center to the appropriate diameter. Never had any slipping problems that way.
The only problem I see with this, is that the screw threads are parallel to the PTFE tubing, so there's a potential weak-point.
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8 x 20mm M3 bolts
8 x M3 locknuts
6mm OD 3mm ID PTFE bowden tube.
3mm drill bit
Print the part twice.
Clean the parts.
Insert one end of the bowden tube in to the mount. Drill through one hole to groove the edge of the tube. Insert a bolt. Repeat for the remaining 7 holes.
Install on printer and print :)
I printed with these last night, and everything was successful.
Now just to recalibrate my retraction & print speeds :)
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