I'm using a worm drive on a stepper motor and the cog has 74 teeth.
As everything suggests, a worm drive gear ratio purely the number of teeth on the cog to 1. (74:1). So should require 74 turns of the input shaft to get 1 revolution of the output shaft.
Now here comes the strange bit....
My worm drive requires 75.25 turns to do one full revolution.
Is there any reason for this? pitch angle perhaps?
As everything suggests, a worm drive gear ratio purely the number of teeth on the cog to 1. (74:1). So should require 74 turns of the input shaft to get 1 revolution of the output shaft.
Now here comes the strange bit....
My worm drive requires 75.25 turns to do one full revolution.
Is there any reason for this? pitch angle perhaps?