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Lab Assistant
Original Poster
#1 Old 19th Dec 2023 at 6:22 AM
[TUTORIAL] Enabling Symmetry for TS3 Rigs in Blender with a Script
Symmetry functions in Blender don't work on TS3 rigs as bone names are not in a format that Blender can detect. So I've written a script to rename the bones.
99% guaranteed to slightly reduce your risk of having a stroke while weight painting or posing.

How to use: Select the Scripting workspace and create a new Text in the Text Editor window. Paste the script. Select the armature. Click "Run Script"(Play icon).

Note that when you rename bones of an armature in any way, Blender updates the vertex group names of objects that use that armature in their Armature Modifier. So make sure your body part objects are connected to the armature before running the script.

The script to rename bones to Blender convention:


Use this script to revert the names to originals before exporting your geoms:


Tested on auRig. If child and toddler rigs don't have any extra left/right bones, this should work for them too but idk atm.
Tested on Blender version 2.93 LTS.

Credits: Base code is from here and here. Yes, I only wrote the dictionary.
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