Airless Style TFD Rear Tires RMRRF

Inspired by tires I'm using for a different RC project. I've modified the really cool wheels I found to work with the TFD dragster.

Original OpenRC Design https://www.thingiverse.com/thing:523776

The design for the TFD integrates the flange coupling adapter into the inner half of the wheels hub using the same m3 and m4 heat inserts that are present in the original TFD file. 

I've printed the tires in Polymaker 95A TPU with .4 nozzle, .2 layer height, 3 walls, 3% infill, and fuzzy skin as follows:
- Contour (outside only)
- 0.8mm point distance
- 1mm thickness

Hubs printed .2 layer height 4 walls and 20% infill

Hubs are slid into the tire with the flat side of the tire facing out and held together with m3 screws. The same m4 screws are used from the original adapter design.

Modifications to fit the current TFD setup and remove the need for a separate coupling adapter as it is built in to the inner hub