Heavy Duty Backpack Hook V3

I have updated my heavy duty backpack hook with a few improvements for strength. The arm has been reduced by 10MM. The short part of the bracket has been thickened by 2MM. A radius has been added on the top corner to improve rigidity for the top portion. The front and bottom faces have triangles on the faces to improve the rigidity of the overall model. I also reduced the diameter of the bolt so it would print cleaner. I use a thin sheet of adhesive rubber backing under the top plate to prevent it from slipping on my work cubicle as it is made of very slippery plastic.Boost MePlease consider a boost if you find this useful.I carry a heavy backpack as I have an engineering laptop and the various hooks I found were inadequate. Enter my over-engineered backpack hook V3. I printed this using esun PLA+ for a super-clean print. For strength, I printed the model at 40% infill (cubic recommended) with 4 walls and it is rather beefy and uses a good bit of filament for that level. You could prob