Because people seem to have trouble with the parent bracket causing too tight an angle, I loosened the angle..
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updated December 12, 2022

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I'll leave this up here, but I now believe this other remix is a better solution to this issue.. I would try this instead: https://www.printables.com/model/338542-x1-ptfe-tube-guide-to-fix-loading-issues-best-of-b 

 

This takes the parent design, but loosens the angle to either 100 or 110 degrees, to give slightly different fits, which ought to cause less of a binding issue for some people who found the parent too tight a bend.  Note that this may cause your PTFE tube to hit up against the glass, however, depending on the length of your tube.

I printed these flat side down with a little bit of painted on support, as shown in the pic.

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The author remixed this model.

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