Submitted by wim.michels@gma... on Sat, 02/20/2016 - 7:38am Tool Concept Stage: Functional Prototype Primary problem statement: I am a farmer and I want a tool to easily mark rows and in-row spacing on my beds because this allows faster and more effective cultivation, harvest and crop planning. Read more about this problem statement License: This work is licensed under a Creative Commons Attribution 4.0 International License. Description: Bike tractor used for weeding, planting, harvesting, hoeiing, marking rows,..Add new comment Documentation Documentation Wiki: Bill of materials Other tools needed to build this tool Step-by-step build instructions Supporting materials ie. SketchUp files, CAD drawings, photos, video, technical drawings. Add new comment I like this tool up0 users have voted. I built (or modified) this tool up0 users have voted.