Actually, all you need are the drawings for the IFI box, such that any team could manufacture one. I believe this is a slight change in the rules this year, and some people may have missed it.
<R34> Parts custom-made for FIRST and provided to FRC teams in the Kit Of Parts for previous FRC competitions (e.g. 2006 FRC transmissions, custom-made motor couplers, custom sensor strips, FRC CMUcam II modules, etc.) may be used if the part is still functionally equivalent to the original condition and:
A. The part is now generally available as a COTS item from an accessible source, or
B. All information required to fabricate the part (e.g. complete drawings, materials list, Gerber Files where appropriate, etc.) is openly available, such that any team could fabricate the part (or have it fabricated for them).
Otherwise, such parts are prohibited from use in the 2010 competition.
There are drawings posted at <edit> that wasn’t the correct link… looking for the drawings now </edit>
Darn… I can’t find the drawings for the IFI transmission. I know they were published as part of the Virtual KoP, because I have a render that my students did in 2004 showing an IFI tranny on the robot… but I don’t know if we have the CAD file anywhere, and… more to the point… I can’t find where to direct you to so that you can show that the drawings are “openly available”. Perhaps someone else can…?
If the drawings are openly available, that should qualify your IFI gearbox as competition legal.
Congratulations on getting your robot done, it looks great. I know its an extra effort shipping to and from Canada, so I have an extra respect for teams overseas. Hope this helps…