Unique 1884 Almond Coupling For Shafting

cults3d

I had a fascination with an invention created by Engineer T.R. Almond in 1884, a 90-degree shaft coupling without any gears. I decided to bring this intriguing piece of engineering to life by creating a model. https://www.youtube.com/embed/5BgvydL7F18 https://youtu.be/5BgvydL7F18 https://www.youtube.com/watch?v=oDev9bHmmR4 Since there were no blueprints available, I had to redesign the coupling through reverse engineering. To make it 3D printable, I aimed for an original design while maintaining its authenticity. I hope you enjoy this project as much as I did! If you decide to print and assemble one, please let me know how you used it. I'm open to new project suggestions like this. Link to the Patent: http://pdfpiw.uspto.gov/.piw?PageNum=0&idkey=NONE&SectionNum=3&HomeUrl=&docid=0304156 Printing and assembling are not complicated tasks... However, there is one crucial item that requires special attention. The ball bearing inside the crank is a nested print. First, import it into your slicer, then move the ball into the crank. This should provide enough clearance for most printers to prevent sticking. Use some glue to attach the crank to the axle after placing the lever on the long shaft and passing the crank ball bearing through.