Gear train calculations for engineer's lathes.
• A 'change gear calculator'.
• Free online program.
• Calculates gear trains for any screw thread.
• Using the gear wheels that you own.
• Metric or imperial threads.
• Metric or imperial lathes.
• Metric/imperial conversion gears.
• Scroll down to find more engineering tools.
NO FEES, NO LOGIN, NO ADVERTISING, NO COOKIES
JUST VOLUNTARY PAYPAL DONATIONS
403 ERROR
The long URL can trigger server security checks
and will be addressed in the next version.
Meanwhile, send me an email. Then run the program
again from scratch to reduce the amount of data
in the URL.
Please contact me if you have any problems.
Or just say Hi! I like to hear from users!
QUICK START GUIDE
• Enter your data in 5 basic steps then RUN
• Step 1: Choose your lathe
• Step 2: Design a gear train. Enter your gears
• Step 3: Choose what you want to calculate
• Step 4: Enter % error you can accept
• Step 5: Enter pitch or TPI or Feed rate
• Click RUN to execute the program
• Change any items in the menu & RUN again
• Review other engineering apps below.
• HELP button to search the help file.
