Gearinator

[WORK IN PROGRESS]

Gearinator is currently version 0.4 alpha and a work in progress. It is a generator for non circular gears in several configurations including spherical non circular gears. Its free for non commercial usage, no ads, no trackers, no subscriptions, no signups. 

The software page is her: Gearinator.

I  seldomly make software only project. This was never meant to be a polished, publishable program. My intent was basically just to write a python script that calculates a few non circular or otherwise peculiar gears. To eliminate third party dependencies and licensing issues I ported the program to Godot and Clipper 2. It does not include any other third party libraries.

Features of Gearinator (among others):

• Interactive shape editing — Drag handles or enter precise values to adjust your design.
• Editable ratio curve — Reshape gears by changing their instantaneous speed relationship.
• Symmetry tools — Mirror symmetry, 3-, 4-, and 5-fold repetition, plus mirroring within each repeated segment.
• Freeform shapes and SVG import — Explore inward curves and custom outlines with adjustable scale and shaft placement.
• External and internal gear pairs — Design two meshing gears or a planet orbiting inside a fixed ring.
• Tooth generation — Generate teeth with adjustable tooth count and backlash, with local fitting and recovery for non-circular profiles.
• Animated previews and diagnostics — Inspect motion, view the ratio graph, and identify regions that may need adjustment.
• SVG and STL export — Export toothed gears or plain shapes, with configurable thickness, shaft bores, and export-only clearance. No need for any CAD programms. Export, load in to the slicer, and print.
• Finishing and assembly options — Add optional STL chamfers, alignment grooves at a chosen assembly angle, and a simple two-shaft base for external pairs.
• Assembly information reports — Export a companion TXT file containing dimensions, tooth counts, spacing, and relevant settings.
• Eccentric planetary generator — Search and preview fixed-ring assemblies with an offset sun and two to five planets in a separate window.
• Gearsphere preview — Explore compatible gear outlines projected onto a sphere in an interactive 3D visualization.
• Complete project files — Save settings, shapes, and compatible generated teeth, then continue working later.
• MCP server — AI assisted gear generation. Can handle all settings, sketching, exports/imports etc.