Pictures would be helpful to have a better idea of what your planning. While I'm aware of the cush spring cap issue which Indy has a kit for, I'm not familiar with the wear problem with the plate. Can you elaborate?
Interesting If only i had a rotary table for my Bridgeport... I hope you have a friend with a CNC and didn't have to pay full price. What changes have you made to stabilize the springs? Have you re-designed the spring bushings as well?
Ha, I probably could have helped with the Cad part, I've got a personal copy of solidworks and I spend half the day in it at work.
That basket looks awesome, good work Retro. The spring cush isn't even there in the dohc cam Italian Sumos. No cush hubs on them either. They appear to not have an issue with the lack of any cush. I have heard machined slugs could take place of the cush spring with out causing problems.
There's probably a reason the 630 SM's had the cush basket while the 450/510's didn't, but I don't know what that is....