This is something I randomly designed when bored. I'd like to know if this would actually work (my printer says 22hrs so currently cannot print it, looking to upgrade). I'd like to see if this sort of 'jig' could be useful since it is not directly near heat nor made for fully welding just to tack this square. If you wanted to test this and give feedback I'd be much appreciated. Whatever failed or is weak...
My idea was to glue M10 nuts on the inside area of the clamping area's. Then have an M10 bolt to clamp against the material.
Plastic_90_clamp_design_test.STL | 897.6KB |