For those using conventional gear hobbers:
- After determining the ideal ratio needed to fabricate a helical gear, how do you determine the best combination of (A/B)*(C/D) in your gearbox that closely approximates the ratio?
- how often do you need to change your gear setup?
- how long does it usually take for you to find the right values for A, B, C, and D? (half an hour? an hour?)