Cat Wall Step

This is a wall shelf/step I designed to use for cats as an in-between larger shelves. It's 240mm wide, which is close to the maximum of the Sovol SV01. I designed the three shelf supports to have 45 degree angles so no printing supports are needed. The model is shown upside-down, how it would be printed, but the large flat face is intended to be the top of the shelf.

The mounting holes are designed for 1/4" drywall anchors, specifically "Toggler Snaptoggle BB Heavy Duty 1/4" Toggle Bolts". These are rated for 265lbs directly against the wall, so I'm betting on two of them combined with the support brackets on the shelf being enough for cats, who hopefully won't be dropping down onto these from a great height. The mounting holes are 12.5mm for the bolt head, 7mm for the bolt itself, and have a 1.5mm deep by 23mm diameter recess for the drywall anchor. The recess is a circle to allow for any orientation of the rectangular anchor face.

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I've uploaded the Fusion 360 file,