Summary

A friend needed a chain guide for his mountain bike so I made him one.
It uses the 2x M5 holes 14mm apart on his YT Jeffsy frame, but you can modify the holder accordingly. Get in touch with me, if you need the original Solidworks file.

Printed it with 0.2mm resolution and PLA filament and so far it held withouth problems.

The design consists of a holder, a front and back piece for the guide itself and various spacers (or you can just use washers).
The height is adjustable to some extend so you can also use it with bigger and smaller chainrings.

For assembly you will need 2x M5 with a normal round head and 1x M5 flathead screw and 1x M5 nut.

Print Settings

Printer Brand:

Creality

                                            Printer:                      
Ender 3

Rafts:

                                            Supports:                      
Yes

Resolution:

0.2

                                            Infill:                      
20% Octed

Filament: Noname PLA

                    
                        Notes:                     
Print so that the long hole for the guiding is laying flat, so the counter nut can move freely later on. See picture for reference.
If the holder will break in the future I will print it again with PETG and see if this holds up better.