An open source tractor?
The goal is to have the user-owner fully capable of maintenance. By design, no issue in LifeTrac should be more expensive than $250 to fix.
Standard steel parts, bolted not welded. No transmission – the drive is hydraulic. Can be fitted with various power sources – including biofuel engines or horses!
It’s part of The Global Village Construction Set, a project to make plans available for sustainable communities to build their own essential machines and tools in what they describe as “post-scarcity” conditions. Presumably, many of these plans could also be used in existing communities in “scarcity” conditions in developing countries. It’s a fascinating idea, and I highly recommend you check it out.
[H/T: Carole Cadwalladr]