WPL Wheels

Here are a few WPL 5mm hex wheel designs that I came up with. I haven't had a chance to print them myself so there may be some bug or flaws that will need adressing. These are my first real attempt at 3d design so any suggestions, comments and or tips from the experienced would be greatly appreciated.

Edit. 03/07/18 3:22 am added better hexes and material to eliminate weak spots.

Edit: 03/07/18 7:30 pm Increased the width of the lips, added supports for the hex, increased overall diameter