Code can be done from anywhere, as can CAD. You can get together remotely over Skype or Google Hangout or whatever in order to work on design and planning, which can make the meetings you do have way more productive. You can work on all the other stuff that isn't the robot (Chairman's, designing your team shirt, design notebook, pit materials for judges, etc).
Or you can call everyone up and have an unofficial team bonding exercise (except ours was official, and yesterday was beautiful here, until about 8PM when everyone had to start driving home on ice...):
https://twitter.com/therobettes/status/821161879175360512