Gear train calculations for engineer's lathes.
This free online program calculates the best gear train to use to produce any required screw thread with the gear wheels that you own. Metric or imperial or mixed with a list of conversion gears. Calculates feed rates, cutting speeds, worm gears, taper turning, thread specifications. Charts for hardness of materials, heat treatment, and tapping drill sizes. Extensive help file, and video tutorials.
QUICK START GUIDE
• Try RUN if you want to see what the program does.
• Click DRAW to see a scale drawing of gear train.
• Any problems? Watch the tutorial videos shown below.
• Return to the MENU. Look through all the options.
• Enter your own data in steps 1-5 then RUN.
• Step 1: Choose the brand of your lathe.
• Step 2: Enter the gears you own for the gear train.
• Step 3: Choose what you want to calculate
• Step 4: Enter the % error you are willing to accept.
• Step 5: For threads use ONE pitch entry method:
• Step 5A just enter the pitch or TPI, then RUN
• Step 5B produces a table for multiple thread sizes,
• Step 5C Use standard thread tables (eg UNF).
• Step 6: Click RUN to execute the program.
• Return to menu to alter one or more items,
eg change the acceptable error.
• RUN again.
EXTRA APPS
See the orange buttons for additional apps that do not require lathe data. e.g. Extensive data on threads and drill sizes for tapping. New versions uploaded in 2022: 28 Jan, 6 Feb, 14 Mar, 21 Mar, 11 Apr.1 May.
Leadscrew: 8
Number of compound gears in the gear train: 1
List of change gears: 20,24,32,40,46,48,56,60
Manual entry of compound gears:
List of compound gears: 127/100,80,63
RideTheGearTrain Tutorial
Part 1B for all other lathes
including South Bend Clones
RideTheGearTrain Tutorial
Part 2 for all users
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