90 Degree Right-Angle Bracket for household repairs (#6 screws, customizable)

prusaprinters

<p>While you are staying safe at home, you might have something break that you'd typically go buy a replacement or perhaps a repair bracket for. (For example, the snack drawer's increased contents and enthusiastic children might result in some damage :D ) You can print this file out and use it to perform a repair without leaving home.</p> <p>I initially looked around for models like this but ended up making my own that I think is useful for a few reasons, mostly related to designing especially for use with 3D printing:</p> <ul> <li>Print on its side: the strength in X and Y are used in the bracket, and no load is applied to the weaker Z direction. It won't break along layer lines. Most ones I saw out there printed upright, or didn't appear optimized for one print direction, </li> <li>Single diagonal brace: Both makes this easier to print by increasing surface area on the bed, and adds even more strength. Only one brace, so no supports are needed.</li> <li>Teardrop-shaped holes: Both the through-hole and the partial countersink are teardrop-shaped, limiting the overhang to 45 degrees. Should be easy and fast no matter what printer you use.</li> </ul> <p>The main model is designed for #6 round-head wood screws since that's what I had, but (especially if you get the SolveSpace file) it can be customized to adjust to whatever screw you have. See the pictures for info. SolveSpace 3.0/master source files available at: <a href="https://gitlab.com/ryanpavlik/angle-bracket-3d-printable">https://gitlab.com/ryanpavlik/angle-bracket-3d-printable</a></p> <h3>Print instructions</h3><p>Print flat on the diagonal brace side. No supports required, and in nearly all cases, no additional bed adhesion (raft/brim) required either. I printed with 0.28mm layer height for speed and strength, but that's up to you. Any material should work - I used PETG out of habit since it's mechanical-ish.</p> <p>Despite being load-bearing, I suspect you can get away with fairly low infill, because the shells provide most of the strength and their orientation is optimized for that. I printed with 18% gyroid infill, 2 perimeters, 4 top layers, and 3 bottom layers.</p> <p>Each one took me about half an hour to print. Lots of printers are faster than mine.</p> <p>The 3MF file is my PrusaSlicer project file for printing on the right extruder of a Replicator 2X with eSun Black PETG. The G-Code is untested slicing for a Prusa i3 Mk3, because PrusaPrinters wouldn't accept the M codes in my Replicator's GCode.</p>