Originally Posted by Airbuzz
Jim, You do good work, but I don't think I could come close to forming those radii to match the bike frame unless I used pure aluminum and using it as a material be pretty weak as an engine mount. If you would be kind enough to go into greater detail I/we sure would appreciate it.
Wait a second. I think I just saw a solution to make it simpler. I'll make a sketch and post it soon. Thanks
The engine mounts were machined from readily available 6061-T6 Aluminum. The closest thing to mill pure Aluminum is 3000 series, and it is extremely gummy and not intended to be machined. You will not be able to make these mounts with hand tools.