Using the Lathe Threading Dial
Channel: Matt Maguire
Date: 2014-02-17

This is the first of 2 videos describing the use of the thread chasing dials on Lathes. Part one deals with sorting out what type of dial is on the lathe. Common charts on lathes with 4" travel length tracking dials and the rules. The fraction used to find the proper dial spacing combinations to chase a thread to increase productivity. What's inside the quick change gear box and how to calculate ratios for thread cutting by solving a simple fraction. Part2 will be the working of the chase dial fraction with a number of different threads and show the proof of the solution on a lathe using a non-standard dial.