Involute spur gear
In your harnessBlender toolMIT
Generate a spur gear with true involute tooth flanks from module, tooth count and pressure angle, with backlash, face width and an optional bore, and report its pitch, tip, root and base diameters. Use it for mechanisms, gear trains and machine props that must mesh.
What it takes and gives
- Operator
- baltor.spur_gear_involute
- Parameters
- teeth, module, pressure_angle, face_width, bore_diameter, backlash, flank_samples, smooth_bore_sides
- Result
- One closed mesh object named Spur Gear, axis along Z, centred on the origin.
- Blender
- 4.2 or later
- Axes
- Blender Z up, -Y forward
- Units
- metres
Limits. Standard full-depth teeth only (addendum one module, dedendum 1.25 modules); no profile shift, no undercut or trochoid root fillet, so gears below about 17 teeth at 20 degrees are not exact near the root. The root between teeth is a straight chord, not an arc. No helix, hub or keyway. Fine for rendering and animation; check tolerances before manufacturing. Verified in Blender 5.2.1; written for the 4.2 API.
Details
- Kind
- Blender tool
- Engine
- Blender 4.2 or later
- Files
- 11 files, 115.9 KB
- Licence
- MIT
- Declared effects
- runs commands
- Checked with
- Blender 5.2.1, background (Cycles CPU for previews)
- Checks
- addon install and enable, operator runs with defaults, blender data matches core, addon disable unregisters, script mode runs, clean reopen addon file, clean reopen script file, gltf separate export, engine output clean
- Techniques
- Involute of a circle and the involute function inv(a) = tan(a) - a, Tooth thickness of half the circular pitch on the pitch circle, Annulus triangulation by merging two angle-sorted loops
- Tags
- blender, procedural, gear, involute, mechanical, mesh generator, cad
- Identity
library.supply.creative_originals.4f0df73b922de449b5602514.9d4ba5ebbfd2902f- Version
9d4ba5ebbfd2902fcd552a92141eaa4ab57110aaa13c1a025fe1b257d8d85d48
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Something wrong with this item, its rights or its safety? Report it on the support page, or from your harness after a download.