- Joined
- Nov 15, 2016
- Messages
- 943
Hi Doug,
It looks like there are enough legible numbers to use on the data plate to work out the ratios.
If you take the thread on the data plate that is the same pitch as the leadscrew and the teeth on the change gears you can work out the starting point to calculate the rest. Pretty easy once you get going as most of it is just progression.
Most of the information looks like it is legible so might pay to just make a new data plate. Nothing worse than trying to decipher faded letters/numbers on a Winter night.
Attached is a program called 'Lathe Gears'. Once your ratios are entered into the appropriate place you can find threads that are not on the data plate and it will also tell you what change gears you will need.
It looks like there are enough legible numbers to use on the data plate to work out the ratios.
If you take the thread on the data plate that is the same pitch as the leadscrew and the teeth on the change gears you can work out the starting point to calculate the rest. Pretty easy once you get going as most of it is just progression.
Most of the information looks like it is legible so might pay to just make a new data plate. Nothing worse than trying to decipher faded letters/numbers on a Winter night.
Attached is a program called 'Lathe Gears'. Once your ratios are entered into the appropriate place you can find threads that are not on the data plate and it will also tell you what change gears you will need.