There is no category limit as long as its a hardware build. You can come as a team or try to join a team on the day of the event. You can and should bring all necessary parts and extras which are prepared ahead of time but the project must be built on the day of the hackathon.
The following tools will be available for you to use (with assistance of a pro if necessary):
3d Printers
CNC Machine
Soldering Station
Oscilloscope, multimeters, microscope
True hackers will just come with a box of electro junk and build an awesome prototype during the day. More info at Build Something
When: Saturday August 10th, 2013 9:00 to 21:00+
Where: Suite 33B, 999 du Collège, Montreal, Quebec, Canada, H4C 2S3
Schedule:
9am - 10am Registration and Team Formation
10am - 7pm Hacking and Building
7pm - 9pm Presentations & Dinner
9pm - 11pm After Party