Development Log
Recent Updates
Improved planetary gearset profile shift balancing
Fixed the profile shift balancing in the z3 = z1 + 2z2 condition for the planetary gearset.
2026-05-14Bug fixes in downloads and share links for the planetary gearset
Bug fixes in downloads and share links for the planetary gearset. Some meshing issues were found and fixed. Planets no longer overlap each other in download. Share links show planetary gearsets properly.
2026-05-09Added a Planetary Gear Calculator
Added a Planetary Gear Calculator to help users design planetary gearsets. Planetary gearsets are now available here. Spur Gear Calculator moved to GearGen.XYZ/spur-gear.
2026-05-02Added a Reverse button to reverse the animation
Added a reverse button to reverse the animation plays clockwise or counterclockwise.
2026-04-09Added a Reverse Engineering section
Added a Reverse Engineering section to help users reverse engineer gears. Reverse Engineering gear geometry is available here.
2026-04-03Showing 1 to 5 of 9 results
Added Features
- • Spur gear calculator to help design spur gearsets.
- • Planetary gear calculator to help design planetary gearsets.
- • Common and preferred modules.
- • Expanding gear report with data.
- • Gear ratio calculations for basic geartrains.
- • Kinematics calculations for planetary gearsets.
- • Geartrains in cascading tabs.
- • Play pause and reset buttons for the animation.
- • Reverse button to reverse the animation.
- • Custom x,y grid system for positioning gears.
- • Backlash input for gears, referenced from AGMA, DIN and ISO.
- • Part number and description input for gears.
- • Profile shifts for adjusting the gears sizing.
- • Profile shift limits for avoiding undercutting and pointed tops.
- • Preferred number of teeth for span measurement.
- • Minimum and maximum number of teeth for span measurement.
- • Being able to select different driving gears for geartrains.
- • Inspection measurements for gears span.
- • Save your gears and gearsets with an account.
- • Share your gears and gearsets with others.
- • Embed your gears and gearsets in your website.
- • Engineering References section.
- • Base pitch table lookup tool to help narrow down the number of teeth to span (k) by pressure angle to then verify the base pitch.
- • Module to diametral pitch converter tool to help convert between module and diametral pitch.
Upcoming Improvements
- • Profile shift balancing for the planetary gearset when z3 does not equal z1 + 2z2 while maintaining the coaxiality condition.
- • Add in hob geometry factors for tip radius and clearance for profile shift limits.
- • Force and stress calculations added to gear report.
- • Gear report data can be exported to CSV or Excel.
- • Add in different basic rack geometries for hobbing manufacturing method.
- • Single tooth gear profile export
- • Export to additional CAD formats
- • User preferences and settings
- • Advanced gear report with more data.
- • Speed, ratio and torque calculations for gearsets.
Known Issues
- • On some occasions the initial gear mesh is off slightly from the actual mesh, but is corrected when refreshing the animation.
- • The profile shift balancing for the ring gear for the planetary gearset is not yet fully functional.