Modular boat propeller designed for 3D printing 80mm diameter

thingiverse

This propeller is a crucial part of a larger boat motor project I'm currently working on, but I've decided to release it now because it will take some time before the rest is finished. Maybe someone can find this useful in the meantime. Note: These blades are the first prototypes, and I'll create more designs that fit with this hub, so even if you only need the propeller itself and don't care about the rest of the project, keep an eye on this page for new blade options. Specifications: • Outer diameter: roughly 80mm (a bit larger) • Blades: 3 • Inclination: I'm still figuring that out. • Hub diameter: 32mm • Length: 27mm • Shaft bore: 6mm • Locking mechanism: a 2mm hole for a cotter pin • Screws: 3 M3x 8 (minimum) to 16 (maximum) screws are included – you can also skip the screws and use glue instead. What's special about this propeller? This prop is specifically designed for 3D printing, which means it's optimized for minimal support usage. This results in a better-looking product with reduced processing time. The prototype in the pictures has had no post-processing work done on it. In my experience, propeller blades can be tricky because they're so thin. When printed on support, they tend to bend or come loose, causing problems like layer shift and a rough surface. But this propeller is designed to avoid all those issues! It's also modular, which means you can replace one blade if it gets damaged. This propeller is quite large, but it can be downscaled depending on your nozzle size and printer. The best way to find out the limits of downscaling is to try it in a slicer program and look at the layer previews. What's this propeller designed for? You'll have to wait and see!