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Stronger Shelf Bracket

by richard_j_m, published

Stronger Shelf Bracket by richard_j_m Feb 14, 2013
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Summary

Decided to make an even stronger shelf support. Very impressed by the rigidity of the print.

This is a design inspired by a failed print of http://www.thingiverse.com/thing:34422. The object came unstuck just after the printing the bottom half. I was so impressed by the strength of the unfinished print I decided to make my own design that was half the size but also with a much larger surface area on the print bed to try to stop the object moving during print.

Please Note: The brackets I've printed with PLA have flowed somewhat in the hot environment of my workshop (30-40C) so I'm reprinting in ABS which should last longer. Just something to be aware of.

Instructions

Printed it with PLA at 175C, 0.35mm J-Head with a fairly slow print speed. 0.25mm layers and 20% infill.

As you can see this can hold a fair amount, very happy with it.

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it would be cool if it was customizable so we could change the distance between the corner and the various holes.

It would but as I wanted to fillet a lot of the edges that would be difficult to achieve via something like openscad. Is there something in particular you were after?

I was partially thinking it would be a good bracket for the top plate of the Prusa Air 2 printer. I currently have single hole metal ones in place but this design would be a much more rigid one than the currently suggested printed ones.

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