-This is a cover/shield to protect the derailleur of a mountain bike, it uses 3 zip ties and 3M double sided tape to secure it to the swing arm.

-(Edit: 25/5/2023) Added the “S” version, it's lighter and has more clearance for the chain, and it should be as strong as the original.

-(Edit: 3/6/2023) I added the “MCH” version, its a shorter and lighter version redesigned from zero so it has a different geometry, with less steep overhangs, making it easier to print with materials that can't use cooling fans like ABS.

-(Edit: 7/6/2023) Added the “MR” and MRS" versions, for me, the ugliest of all, but also the stronger ones because of the changed orientation when printing, the idea is to have the layers at an angle so it better withstand impacts. Also added two photos showing how this two and the rest should be printed.

-3 to 4 perimeters, 20-30% infill, I use triangles, no supports needed.
I recomend ASA but you can experiment with any material.

-Print it with the side touching the bike on the build plate.