Radial or Hula Motor

thingiverse

The eagerly anticipated radial engine is available now! Unveiling my latest motor model series, a prototype of a five-cylinder radial motor. Kindly share your feedback on improvements you'd like to see. This design seems reminiscent of a steampunk version of a Stark arc reactor! I have uploaded the complete model and individual components for your perusal. Feel free to experiment with scale - a hint, Replicator enthusiasts! Print all components except pistons at 100% infill. Use body components 2.0 for stronger assembly. Assemble pistons to rods using 3mm filament or another material. Attach piston rods to connector. Prepare flywheel by inserting axle. Mount the assembly on the flywheel. Then, assemble the body around the piston/flywheel assembly, starting with the part that holds the flywheel in place. Secure each segment with your preferred adhesive. Voila! Updates: - Radial 2.0 features a dial on the back for easier mechanism operation - New video at http://youtu.be/f4uudyJQ32s - Body parts 2.0 include alignment ribs for easier assembly and stronger part interfaces - Connector and rods file have built-in support - Longer drive shaft on the flywheel - Improved tolerances on the piston and rod assembly - Piston depression detail - Stabilizing arm - Cap for rod assembly - Various filleted edges - Complete model now has pins holding pistons in place (can't believe I missed that) - Two body files to scale as large as you can: A and B body piece types (ensure other components are scaled similarly) Printing results: As shown in the pictures, I printed the body without support and only had a couple of loops. I was pleasantly surprised as the overhang is quite extreme. I will print another separately to see if it turns out better. Printing result update: I added alignment ribs to the body components, which greatly ease assembly, as demonstrated in the photos. Check out the video at http://www.youtube.com/watch?v=a_IAEBPesCE for more fun!