For Thrustmaster T500RS, T300, TX, etc.
Currently a work in progress. Printed 50% infill in ABS. After initial tests, the current model seems to work great.
UPDATE: Due to popular demand, the 3D Model is now available for grabs at this address; http://a360.co/1Rkrojg
You can download as a format supported by your own modelling software. Simply use the download panel to the top right after clicking the link.
There is one version for 70 mm pattern and another for 74 mm pattern. I'm also working on a universal 70/74 model which may be released soon (tm).
There's also a lot of different spacers that can be used to adjust the distance to the wheel as well as to allow some space for the horn button on some steering wheels. Also included are some horn button spacers that fit in the middle of the hub, allowing you to glue your own horn button at a good position in relation to the steering wheel.
The hub also features a hole in the center where you could possibly route out some cables for custom buttons on the wheel.
More information to come!