Motor Terminal Cover - Westinghouse CAH

prusaprinters

<p>It is unlikely that this print will ever be needed by anyone else (but you never know). Mostly I am posting this here as an example which may be instructive to people who need to make an odd shaped part.</p> <p>As the photos show, this part is used to cover the electrical power terminals on an electric motor. The motor in question is an antique Westinghouse CAH 1/4HP motor; the original cover was probably stamped sheet metal. When I purchased the motor it was working, but was in need of clean-up and rewiring. Since the original terminal cover was long gone, I decided to 3D print a replacement.</p> <p>The photos include a photo I found online showing an original terminal cover (with white power cord), my restored motor, and a "skeleton" print I made as part of the design process to test the part fit.</p> <p>Anyone interested in more details of the motor rebuild and more details on the 3D printed part design process can look here :</p> <p><a href="https://sites.google.com/site/lagadoacademy/miscellaneous-projects/motor-rebuild">https://sites.google.com/site/lagadoacademy/miscellaneous-projects/motor-rebuild</a></p> <p>The OnShape 3D CAD file for this is here :</p> <p><a href="https://cad.onshape.com/documents/1792562cab9691fe56446028/w/c5e50dc2eb4184520384f1f8/e/c2fc06cbfeb39a63a6e382a1">https://cad.onshape.com/documents/1792562cab9691fe56446028/w/c5e50dc2eb4184520384f1f8/e/c2fc06cbfeb39a63a6e382a1</a></p> <h3>Print instructions</h3><p>Print in PETG using the provided 3mf file; otherwise :</p> <ul> <li>Supports on build plate only (0.2 detachable)</li> <li>Perimeters = 8</li> <li>Infill 100% rectilinear</li> </ul> <p>I used 0.15mm layer height for a smooth look, but 0.2mm or even 0.3mm would probably be just fine.</p>