DIY 3D-printer mounting kit with simple belt fastener

thingiverse

These are the parts I designed specifically for my DIY printer in order to almost double the printing range, compared to my previous setup made out of steel. Maybe it can be of help for others as well or at least give an idea. I have no experience at all in CATIA, so it is way far from being perfect, but as you can see at the pictures, it does a nice job atm. It is actually very comfortable and simple to fasten a 5mm belt accordingly to the required tension just by inserting it into the slit of the back of the extruder mount. The standard round bearings can be glued in place quickly, the setup was made for 8 mm rods and also for 8 mm threads with the standard guidance - can be glued in or screwed as well. The rods don't even have to be fixed mechanically to the carriages, as they are held in place once the whole setup is mounted together (the rectangular holes had originally been foreseen to fix the rods with some strips). The stepper motor is just clamped on the carriage by 4*M4 hexagon screws that have been mounted before, no tightening required. The extruder mount requires a lot of support, but it will work fine. Both carriages can be printed with just 10% to 20% infill, support is also required. Have fun! edit: uploaded a new version of the extruder_mount: - the linear 15mm bearings now will stick in place, without having to be glued in - the probe can be fixed straight vertically now - the belt "fastener" has been modified