Hi all..... I have to replace a power-feed gear on my lathe. I've made a few practice runs at making a gear before I attempt to make the actual gear and have a question. The original gear has 24 teeth, is 16DP and has a 14.5° PA. Doing the math, which I'm pretty sure I did right, tells me that the diameter of the blank should be 1.625" , but the original gear measures 1.595".
So the question is: Do I need to make adjustments to the depth of cut because of the difference between original gear diameter and what the math says the diameter should be?
So the question is: Do I need to make adjustments to the depth of cut because of the difference between original gear diameter and what the math says the diameter should be?