Anet A8 Filament Guide Arm

thingiverse

I wanted a base that's easy to assemble, so I designed it with slots and screw holes on the walls. This way, if the base does tend to shift slightly, you can secure it with M3 bolts. Set screws are usually small enough to self-tap with their own bolts, making them super convenient. Although my design fits snugly together without issues, I've included set screws just in case. As always, I'm providing the FreeCAD source code so you can make any necessary adjustments to suit your needs.