Ender 3 captured ptfe precise cutting guide

I was having difficulty making a perfectly straight cut in my PTFE tube to apply the hotend fix, so remixed OneBadMarine's Ender 3 cut into this version to make that a little easier for me. If you're less inept than I am at this kind of thing then the original will probably do fine.
This version has a length of tube to hold the ptfe straight and beefed up blade guides, with a slightly narrower gap.
Added versions of the Cr-10 and CR10 pro cutting guides.

See https://www.thingiverse.com/thing:3203831 for the hotend fix itself.

Also included endless cutting guide "cutter" that can be used to cut your PTFE to a custom length.