[Cooper]

Definitely a beast!! Of the two parts I'm dreading, the endless rotation ring and the slew ring, I don't see any better design on the endless rotator!! And before seeing this post I had a similar idea of loose fitting o rings for grease seals in the slip ring. Trying to source (fairly inexpensive) internal/external spur gears of similar size for the slew ring has not been kind. I've recently decided to get started on a similar machine. I like how you are building this. I know it is a premature question but are you going to have a self tensioning devise on the chain for the slew ring or just have a static adjustable motor mount? One thing I hate is the excessive slop in my small excavator slew assembly. And on such a large machine made to be working on level surface a little slop isn't an issue. Was just wondering.

Looks great by the way!!!! Always impressive!!