Metric 127 tooth change gear location

[RandyWilson]

My journey

Transposing gears, the crazy way

We won't get into why I bought an old American lathe when I had banished all things Imperial (and Whitworth) along with all things pushrod from my stable thirty years ago. But I did, a South Bend 14 1/2 dual tumbler. The only thing in my defense is the lathe came with all of the stud gears for...

www.hobby-machinist.com

 

[cathead]

I made a 127 hole dividing plate with my milling machine using the digital readout using
the circle function. When I was looking at dividing heads and rotary tables to buy, I
decided on the rotary table as it seemed to have capability of making gears and has other
functions as well. The rotary table is a Phase II model with 90:1 reduction.


Here's a photo of the plate mounted on the rotary table. The dividing plate needed to be larger than
the standard plate size to accommodate the 127 holes so a larger crank handle was made to reach
the outer row of holes as well as longer fingers to reach to the perimeter.