For more than twenty years a reader of “Modeller-designer”. Thanks to the magazine made a lot of operational machinery: mini tractor, tillers, circular saw, trevaresse, welding machine, trailers for walk-behind tractor and car… you name it. Publications appreciate the main idea, and to the nodes and the dimensions are roughly, because they are very dependent on the availability of materials and capabilities.
In response to your appeal, decided to be not only a passive reader but also an author and share your design snips — things needed by any samodelka. My scissors are good that will not deform the metal during the cutting — out sheet is smooth, without creases. The reason—performed non-traditional hinge joint.
Driven dimensions can also be considered indicative, because the design provides for changes depending on the thickness of the cut of metal (in this embodiment, up to 2 mm).