In this post, Suchan Raj Bajracharya (@tweetBoucha) shares a great overview on how he sets up his twist joints. He demonstrates two methods for keeping the set-up from using rotational constraints or connections and has several helpful videos that demonstrate each technique! Do take note of all these tips when rigging your character’s forearms in Maya: -Twist Joint Setup Overview at SRB Blogspot here; also make sure you check out Sinka Rig by clicking through below!.
The output is a series of extracts from Suchan Raj’s post. She talks about what she knows and how it has helped her in the past with rigging people, but also discusses an issue that many others have come across – rotating joints while having weights connected at different angles creates problems for movement through all directions.
She says “I’ve seen people” use twist joint setup (usually while rigging forearms) by connecting them via rotational weighted constraints or direct connections depending on which method best suits their job requirements when only wanting to rotate objects aligned straight forward without twisting too much more than 90 degree increments around single axes such as X-axis example.