Biped Limb Rig Build Tool

This is a tool I wrote in Python to build a biped limb rig setup.

When creating limb setups, manually building the FK-IK blending systems, squash and stretch, and twist setups can become repetitive and time-consuming, especially when building these setups on multiple limbs for a character or creature rig. To simplify the process, I created a tool that builds a limb rig with FK-IK blending and optional additional systems that can be added by the user.

The tool takes in a set of user-defined parameters that are easy to specify within the UI: the side (left or right), part (arm or leg), guides that will be used to build the limb (joints, empty groups, locators, etc.), name information for the naming convention of all elements, primary and secondary axis information, and pose information to determine control position and orientation. It also allows the user to select a variety of additional features to add to the basic rig in any combination.

Software Used: Python, Maya

2025

Responsible for: Tool development

Below are a demo of Version 1.1 of the tool, which added the twist setup, and a demo of Version 1.0 of the tool, which goes through the entire tool and its functions in detail.