Precision Gears [ Addon ]

69 ratings

TLDR read the bold text.

Precision Gears is a blender addon developed to bring an array of mathematically accurate involute gears to the precision world of Blender. Not only that, it's all incapsulated inside the closest thing to a faux "parametric" system, giving you the ability to change your gears on the fly. Also, integrated is a gear rigging system to create parametric gear chains that are animated.

Minimum version: Blender 3.5


Technically Precision Gears is forever evolving and in a state of open "beta". Gears are a very complicated topic to understand, teach and develop for, so be patient a whole bunch of videos and a wiki are planned for eventually. In the time being if you find any consistent bugs that you are able to replicate or have any future development ideas I would love to hear from you. The best place is in the maker tales discord in the Precision Gears channel link: HERE. Alternatively, you can fill in this form: Here not reviewed as often.

If you would like to test out a reduced feature "lite" version to evaluate how the addon works it's linked: here.

The addon is available for download for $8. With that said it would be greatly appreciated if you have the means to pay the suggested $15 or more as this will facilitate further development of this addon along with other precision addons for blender.

Gears & Features currently available:


  • Spur Gear
  • Helical Gear
  • Herringbone Gear
  • Rack Gear
  • Internal Gear
  • Internal Herringbone Gear
  • Internal Helical Gear
  • Bevel Gear
  • Spiral Bevel Gear
  • Worm Gear
  • GT2 Belt Gears
  • Crown Gears


  • Center Extrusions
  • Set Screws
  • Cross Bore
  • Round Subtract Bore (Set Screw)
  • Round Additice Bore (Key)
  • Polygon Bore ( Triangel / Hex ect.)
  • Bore Previews
  • Preset Creation
  • Global Scaling

All future developments are included!
This is a one time purchase...
Of course, further donations are always welcome if you feel there granted =)

New With The Toothy Update:

  • Gears to keep material assignments when changing parameters
  • Internal gears outside perimeters perfectly round
  • Cross bore. XY parameters should be the total length of bore extrusion
  • Gear face chamfering/bevelling from tip (Spur, Internal, Helical, Herringbone, Rack)
  • Tooth crowning (Spur, Internal)
  • Tooth flank tip relief (Spur, Internal, Helical, Herringbone, Rack)
  • Tooth undercut (Spur, Helical, Herringbone)
  • Rounded tooth tips/reliefs (Spur, Internal, Helical, Herringbone, Rack)
  • Tooth flank base relief (Rack)
  • Better Topology
  • Pre-creased Edges (aka. Subvision Support)
  • Plus more fixes under the hood...

New With Rigging Update:

  • GT2 Gears
  • Crown Gears
  • Gear presets with thumbnails and a robust preset application system
  • Improved UV Unwrapping
  • Improved worm gears
  • Procedural Gear Rigging System
    • Instance-based so it’s fast and you can use modifiers to edit gears
I want this!


(69 ratings)
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Precision Gears [ Addon ]

69 ratings
I want this!