Minibot Construction and Size

[2011FRC0057]

A few points we'd like to clarify on the MINIBOT:
1. No PLAYING CONFIGURATION is listed for the MINIBOT in R91. Are we correct in assuming that the MINIBOT must always remain in a 12" x 12" x 12" box?
2. R92 lists several "raw material" items like aluminum and polycarbonate. Are we allowed to machine these materials? (Eg. milling flat aluminum bar to make wheels) Are there any limits to this?
3. Is welding an allowable joining method for the minibot?
4. Does "common household light switch" include "Decora" style switches with large paddle actuators? What about three-way light switches? Double pole light switches?

[GDC]

Updated per Team Update 7.

1. Yes.
2. Yes, they may be machined.
3. Yes.
4. For the purposes of the 2011 FRC competition, "light switches" refer to any commonly available (i.e. available from a commercial source such as Home Depot or Lowes) household light switch that would normally be used in a wall mounting box.