tank treads vs. threaded wheels

[maxgebhardt]

PAGE 20, RULE M17
This rule was drafted to attempt to prevent damage to our playing field, which includes the
ramp structure, field borders, etc. Because we allow you to fabricate a wheel, it really doesn’t
make much sense for us to say:
“The outer surface of off-the-shelf wheels may be modified by removing tread material only.”
Please delete this sentence; however, now we need to address the issue of “anti-traction”
devices or anchors, i.e., devices designed to hold you firmly in one place. Anchors cannot
use metal in contact with the carpet to “stay put.” Similarly, metal traction or anchor surfaces
are not allowed on the ramp surfaces.
Add the following to Rule M17:
Anchors, i.e., devices that are deployed/used to attempt to keep one’s robot in one place and
to prevent from being moved by another robot, cannot use metal in contact with the carpet to
“stay put.” Similarly, metal traction or anchor surfaces are not allowed on the ramp or
platform.

so now you can add stuff to you wheels, or take it off, it's your pick.