hello, I’ve printed this thing 2x because the 2 extensions with the mounting holes are just too thin and keep snapping off with the lightest amount of pressure. I like the design but maybe instead of having those 2 thin mounting tabs just sticking up like that with very little support to prevent snapping off. perhaps just have that empty space where the screw holes are, just fill it all in solid all the up the last set of holes..this would add a lot of rigidity to the support arm