Foldable Tractor Harrow Blueprint

I need a complete blueprint for a fold-able paddy harrow that will work efficiently on flat rice fields and mount directly on a standard tractor three-point hitch. The design must fold quickly for transport and storage, remain simple for farmers to operate, and rely on a robust steel frame for long-term durability in wet conditions.

Please turn my concept into fabrication-ready documentation that can go straight to a workshop. I expect dimensional drawings, material specifications, and a short assembly guide that highlights hinge geometry, locking mechanisms, and weight distribution so the implement rides level behind the tractor and doesn’t gouge the field when unfolded.

If you work in CAD packages such as SolidWorks, AutoCAD, or Fusion 360, that’s perfect—send the native files plus export them as PDF/DWG so local machinists can read them. Include any stress calculations or FEA screenshots that justify material thicknesses and joint placement; I want to be confident the folded wings won’t flex under load.

Deliverables:
• 2D fabrication drawings with full dimensions
• 3D CAD model of the complete assembly
• Bill of materials listing steel grades, fasteners, and off-the-shelf components
• Brief user/maintenance guide (folding procedure and tractor mounting steps)

I’m happy to answer questions about tractor horsepower or implement width if that helps fine-tune the design. Let’s build an implement farmers can rely on season after season.