Edit 18 Jan 22: Added a tool-less version that can just be inserted into a 2020 rail, turned 90 degrees and stay (mostly) in place. :)

I was inspired by some other spherical filament guides I've seen on here, but being that I wanted one that could be used with a Bowden tube, I decided to create my own.

BOM:

Guide

• 1x M6 pneumatic fitting (https://www.amazon.com/Witbot-Straight-Fitting-Connector-Printer/dp/B01NANKRTD)
• 1x M6 nylon lock nut

Large Base

• 1x M3 T-Nut
• 1x M3x6mm Socket Cap Machine Screws

Small Base

• 2x M3 T-Nut
• 2x M3x6mm Socket Cap Machine Screws

Printing:

• Any material
• Print "Guide" on its side with supports hex

I'm going to add a design that doesn't need a base and instead can be inserted into the V-slot rails, then rotated 90 degrees to lock it in place.