Hello Andy, I am designing in Freecad, and I was wondering if you mind sharing your CAD files, -or even selling them?? I am researching for a DIY grapple for the last 2 weeks and I was ready to start CADing when I saw your post. Perfect timing! Are your plans open source? I would like to give back to the community by leaving the plans open for anyone to copy-alter or improve!
Also any feedback, what you would do different, as any links on any materials that you bought it would be great! I was a developer at Open Source Ecology for a while, and my intent is to make a grapple with a Bill Of Materials, CAD and instructions, so everyone that can weld would be able to make its own grapple.