I managed to get a couple of significant pieces done this afternoon. I wanted to us my Robart 2'' stroke cylinders, but needed a clevis to work....so i got on the lathe and bandsaw and WALAA.
Finster, i have solved the internal tooth ring, i am using an r/c motorcycle chain and sprocket for the drive gear. I soldered the chain to the inside of my circle board. It is pretty true for just eyeing it in.
Steve, I am still trying to reach your 'master' status
Lorenzo, I really didn't measure the diameter, I just kinda went from the patterns, i will take a measurement
Dream, I am going to run as much hydraulic as possible. I haven't used a switch 8 before, i just know that i need quite-a-few 3 pos switches so i can center my valves