Edit: My new design "Better grain auger" is a much nicer design. There are considerable improvements needed to this design, so I restarted from scratch.
Edit: Redesigned hopper and saddle. 11/29/16
This is a working grain auger. Completed, it is 18" long, and 1.75" diameter. This works just great with popcorn or small beans. Hopefully there will be more parts coming to build a full working toy grain handling system.
You will need 3 of the auger flightings, which need a bit of epoxy before sticking together, and 2 wheels. Everything else requires a single print of each part.
Edit: deleted obsolete info.
This was created in Onshape, and is public. Search for Grain Auger, and feel free to customize as you wish.
Have fun printing, and happy farming.
| big_hopper.stl | 3.7MB | |
| boot.stl | 176.3KB | |
| crank.stl | 113.3KB | |
| handle.stl | 1.5MB | |
| Lower_brace.stl | 231.1KB | |
| Saddle.stl | 3.0MB | |
| tube-top.stl | 316.9KB | |
| tube.stl | 57.3KB | |
| Upper_brace.stl | 176.1KB | |
| Wheel.stl | 2.4MB | |
| worm.stl | 730.4KB |
