Unless you're going to be printing a truly *massive* amount of plastic,
don't worry about supplies for the makerbot. (You definitely can't do
enough printing on a single Tuesday to bother).
The way it works is as follows: You can come to the space any time there
is a member present who will let you in. Tuesday nights, this is
absolutely guaranteed. There are people at the space between 6pm and 11pm,
and often beyond those hours. Other days of the week are more varied,
however. You're welcome to stop by, but if no one's there, then you've
wasted your time. You're also welcome to shout out to this mailing list
and ask if anyone intends to be at the space at a particular time. Weekday
evenings and weekend days are the most popular times, so if you ask, it's
likely that someone will chime in to say, "I'll be around."