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I know solidworks is fine, so now I need to figure out wtf is going on with rev1...
Fixing Prototype 1
Now I needed to figure out why prototype 1 wasn't working. I set up a test assembly with one disc, the eccentric shaft stackup and the ring pin housing. After adjusting the parameters of the motion study to match the testing above, I learned that the motion study once again, did not work. I made a super simplified cam shaft and re tested the assembly, and found good results:
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I ran into more issues when testing dual disc set up. It's a lot to explain so I wont discuss it all, but pretty much I wasn't able to get the motion simulation running properly. I ended up making a bunch of minor iterations to the discs, so I removed the ribs as they were making it difficult to iterate. One thing I also did which was a really good idea was add alignment cutouts. The two holes identify the optimal location to place the discs in initial installation, which will be very helpful for actual assembly.
Finally Getting A Working Motion Study
After a lot of labour and minor revisions, I finally got a working revision. I re CAD-ED disc 2 from scratch, and manually mirrored the disc on the origin rather than using the sketch schematic. Tbh, I don't think this really matters - the main fix will be discussed in a bit.
I made the alignment holes thru holes, and still haven't added the ribs back to the design yet. Will do that later, it's not super important for this initial revision anyways.
I also took the dowel pins out of the output shaft to let them rotate on their own in the simulation.
Lastly, the main thing I changed was the 3D contact resolution of the motion study. I changed it from 50-70 which seemed to fix my issues. Everything seems to work fine now.
Check out the motion study!
cycloidal drive prototype 1.mp4
Next Steps
Obvious next steps are testing and refining. Here are the things in particular I want to do
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