- Joined
- Aug 4, 2015
- Messages
- 291
Does an idler gear play into the ratio of a change gear setup on a lathe other than to reverse the rotation of the shaft? Obviously if the idler gear is attached to a second gear on a common shaft that is a different diameter it will have an effect, but if a 3 gear set, being the bull gear, the idler and the lead screw gear. If the idler is 80 tooth or 120 teeth is there a difference? I know this sounds silly, but I think it makes no difference other than direction of rotation
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