BLRP Bunnings Linear Rail Project

thingiverse

Bunnings Linear Rail Project I wanted to build a mill, router, laser engraver and 3d printer from easy to obtain and cheap bits. The first step was to produce a linear rail with a lead screw for Z axis, the next step will be a belt drive linear rail for X and Y. I'm hoping some fellow makers can contribute to completing this concept into a full machine. I have included the F360 project file so that people can modify and print as needed. I was close to just printing several other machine designs but found that even though they are open source the project files are not available. So another design for a machine is now out there, the BLRP. Each rail will cost about $110 AUD, this is very affordable for a 700mm travel linear rail. 1 X Spring $4.60 1 X pack of 4 M6 X 60mm $2.40 1 X pack of 4 M6 X 80mm $2.40 2 X pack of 4 M8 X 20mm $5 1 X 5/8 Threaded Rod $10.90 2 X Steel 25mm Square Tube 1m $16.30 2 X 5/8 Bearing $7.60 2 X 5/8 Hex Nut $0.90 8 X Roller skate bearing $4.00 1 X NEMA 23 Stepper motor $25 30 x 30 x 3.0mm 1m Aluminium Angle $13.10 500g Filament $15 The accuracy for the first prototype is OK? About 0.5mm of play over the 700mm. I'm hoping the 3D printed parts are strong enough to use the rails as a 3 axis router, this would allow the printed parts to be made from formply. Then with the formply parts maybe thin aluminium could be cut to make the final machine.