Some Time ago I built a timy 3D Printer. The extruder is published separately
Matching extruder Thing
I used "Dold" Aluminium Extrusions. The Board is a AnetA8, it's a bit special to program. The Carriages are an MGN15 for the Z and two MGN12 for X and Y. I used and LCD12864 Display. The Heatbed is 120x120mm big, unknown brand.
I don't expect people to actually make this printer. If you do, please ask me the things you need. That said, I don't provide detailed Instructions or a BOM. I do expect you to be able to determine that from CAD yourself.
The Printer was built for slow and exact prints. It is quite small, the frame measures only 245mm in with. The frame is very ridgid constructed and therefore gives a nice surface finish. I use it as an addition for said small and exact parts. Or because I'm too lazy to switch to the right colored Filament :).
Please tell me if I forgot to export an .stl