Shelf Bracket with internal Web pattern

Super strong shelf bracket. Currently 200x200x50mm but can be scaled slightly to mee your requirements but this may effect the fixing holes if scaled too small. That being said new negative cylinders could be added to re-scale fixing holes. I have printed mind using a batch of matte PETG that I want to use up as it prints like dog do-do but PLA would likely work just fine too. I was thinking about these shelf brackets for my workshop and I wanted an internal structure that would transfer load effectively and look ok. Seeing as my workshop is filled with cob webs, I thought why not make that part of the design and let nature do the rest. I have selected grid infill as I believe this will work the best for structure but you are free to change this if you fill another infill pattern will work better for your print. I have added locations for 4x 5mm gauge screws as again for my application strength is mostly required but you could easily get away with a 4mm gauge screw if you require less