Always amazed at how much you get accomplished. The boring bar setup is very clever. Nice job. Mike
I came up with that idea when I needed a boring head to make my steady rest and didn't have one.
Always amazed at how much you get accomplished. The boring bar setup is very clever. Nice job. Mike
Mark,
It's amazing what you can do on a 9" SBL. I've done similar things on mine in the past too, over the years.
Your dividing head reminds me of one my dad built us to use many years ago. It was made from a worm gear set that had a 39:1 ratio. He had hundreds of these at his disposal at the time. But rather have the index plate on the crank side, dad mounted the index plate directly on the spindle side of the index head. It was limited, but got the job done. Wish I still had that DH today.
Mark, I like your drawings. The chuck tightening pinions are just slightly out of skew! But is cool!
Keep up the great work! I enjoy your threads.
The following formula is used to determine the holes required for a number of divisions. While the example uses 10 holes a larger multiple of holes will cover the same number of divisions and several more.
R = Ratio
H = Holes
D = Divisions
W = Holes per division ( must be a whole number and will be as long as it is a multiple of D)
W = R x H / by D