Drone/Plane Propellers– generative design, any size

prusaprinters

<p>In 3d printing a RC Stearman model I needed an 11x5.5 prop. Instead of paying $3 for one I spent<i>thousands</i> of person-hours using high-expertise design skills to build this!</p><p>It's a<i>procedurally generated</i> propeller design that's<strong>variable-enabled</strong>. You can enter your dimensions and get a prop or customize and tailor to your hearts content. Don't like my vortex generators? Remove 'em or change them.</p><p>I'd like to build this document up with different sizes that people can just download- so if you'd like a size or variation that's not here ping me and I'll get you the STL and upload it here. Leave a comment or message me on <a href="https://b.link/t4discord">discord</a>/<a href="https://t.me/coolwheel">telegram</a></p><h3>Printing</h3><p>Needs to be printed <i><strong>with supports</strong></i> then sanded.</p><p>I use (and recommend) high-temperature PLA+ to print. It anneals when oven heated and becomes even stronger.</p><p>Here's my process:</p><ul><li>Print:<ul><li>I prefer upside down to make the thin trailing edge come out great.</li><li>with support! I use ~55-deg overhang angle</li></ul></li><li>I use 3 wall perimeters with super thin 0.1mm layers and a high infill of 'lines' or 'grid' to keep it symmetric and balanced.</li><li>Optional annealing:<ul><li>after printing LEAVE SUPPORTS ATTACHED</li><li>Bake in oven for ~10-15 minutes. I used 220F for my HTPLA+ from fusion filaments.</li><li>Carefully remove supports. They're stronger now so go slow.</li></ul></li><li>Sand sand sand. I:<ul><li>start by using a combination of a dremel sander and 80-120 grit to get all the layer lines out on the top and bottom surfaces (bottom is more important).</li><li>Then I wet sand with ~200 grit, ~300 grit, ~400 grit, and ~800 grit.</li></ul></li></ul><p>That's it! My 11x5.5 prop takes ~5h of printing, 15m to bake, and 1h to sand/finish.</p><h3>Source / Design File</h3><p>Designed in onshape, effectively next-generation solidworks in the web (an mobile apps) <a href="https://b.link/propGen">Here's the public document</a>. Anyone can fork and extend the design for free.</p><p>Also <a href="https://www.onshape.com/en/products/free">here's the page</a> to get a free account, they keep a little it hidden from their main site</p><h3>Message me!</h3><p><strong>If you use the CAD, print a prop, or even go with an alternative: Message me on </strong><a href="https://b.link/t4discord">discord</a><strong>/</strong><a href="https://t.me/coolwheel"><strong>telegram</strong></a><strong>! I want to hear how it went!</strong></p><h3>Post your make!</h3><p>Please post 'em! Really! Take a quick cameraphone photo of your print in all its glory and show it off! Plus it really helps get this design out there to the world.</p><h3>Message me on <a href="https://b.link/t4discord">discord</a>/<a href="https://t.me/coolwheel">telegram</a> for</h3><ul><li>customizations</li><li>different engravings</li><li>different variation ideas</li><li>any issues: printing, design, fit, etc</li><li>to show off / geek out about your result</li><li>say howdy</li></ul><p>Designing stuff is fun but interacting with cool people and hearing about their adventures is better. I can generate any variation / engraving easily, message me on <a href="https://b.link/t4discord">discord</a>/<a href="https://t.me/coolwheel">telegram</a> and/or leave a comment and let's make your perfect version. I only ask that you post a make!</p><p>If you'd like the CAD or STEP file too, no problem. I've already helped a bunch of great folks! Send me a ping</p>