Y belt attachment for Anet A8-B printer. This is a remix of Simhopp's belt_y_3.skp from thing:1433295 for Anet A8-B printer (the one with aluminium 3-part heated bed stand and 12 x 20 mm screw hole distance).
Choose the STL that better suits your printer's heated bed stand configuration, see the pictures.
For 4mm base part You will need two M4x15mm screws (saved from original attachment) and two M4x6mm flat head screws.
For 10mm base part You will need two M4x20mm round head screws and two M4x6mm flat head screws.
Update 2016-12-12: Added "high-base" part.
Update 2017-01-18: Increased base height by 1 mm to eliminate a subtle belt bending.