39 Arc Platter

Lovely piece Matthew!

Hi Matthew:
Beautiful! The decorative arcs are a wonderful complement to the piece. Would you be so kind as to post a picture and some details on your custom indexing jig? Thank you.
Barry W. Larson
Calgary, Alberta, Canada eh!

Barry Larson said:

Hi Matthew:
Beautiful! The decorative arcs are a wonderful complement to the piece. Would you be so kind as to post a picture and some details on your custom indexing jig? Thank you.
Barry W. Larson
Calgary, Alberta, Canada eh!

Click to expand...

Here is the jig. I used bicycle chain rings attached on the handwheel of my Rikon 70-3040. The gear is locked in place using a chain wrench. The gears and chain are marked to show which spot on the wheel is indexed.




The reason I like the chain rings is that you can get odd numbers and prime numbers that most indexing systems don't have. Currently I have four rings on the jig: 22, 39, 56, and 60 teeth. With those and the existing 36 segment indexing ring built into the lathe, I can use the following divisions: 2 through 15, 18, 20, 22, 28, 30, 36, 39, 56, and 60. Since the bolt patterns of bicycle chain rings are consistent with either 4 or 5 bolts (my jig has both), I can swap out rings for other numbers.

Thanks Matthew. I'll need to study your pictures a bit to figure it all out. Looks like a pretty neat set-up.
Barry W. Larson
Calgary, Alberta, Canada eh!