Announcements — Add Comment
18
Jan 12
FIRST Team 846 is maintaining an SVN Repository of the unofficial 2012 FRC Game Documents. The documents can be accessed using the SVN command:
svn checkout http://frc2012-gamedocs.googlecode.com/svn/trunk/ frc2012-gamedocs-read-only
or with TortoiseSVN at:
http://frc2012-gamedocs.googlecode.com/svn/trunk/
Please direct comments or questions about this repository to FRC12_rules@lynbrookrobotics.com.
Build Season Log / News — Add Comment
17
Jan 12
Since it was a Tuesday today, many of us got out of school at 1PM. However, we didn’t just leave school. Some of us stayed and worked in room 612. We started on building the bridge. We also continued fixing up our CNC and made more calculations and tests.
At night, we were again at school. Funny how we seem to love school so much… We had our weekly Active Member’s Meeting (thus, the title of this entry). We talked about purchasing a team flag, the t-shirt and sweater designs, the upcoming spring newsletter, awards, and the trip to New York. More detailed notes can be found here. Interestingly enough, this meeting ended in just 89 minutes. Anyways, we were able to get much done in this short time period. Tomorrow, we will continue working on the robot design during the design meeting.
Build Season Log — Add Comment
14
Jan 12
We met early in the morning today to discuss the drivetrain. Instead of diving in and CADing everything right off the bat, we had a more detailed discussion about what we wanted in the design. By the end of the meeting, we had started on a preliminary model for the drivetrain.
Build Season Log — Add Comment
13
Jan 12
Update on CNC: We are almost finished. We have finished assembling all of the major parts of the machine. All we need are the power supply, the computer, and two pieces of tape.
In today’s design meeting, we split up into three groups: trajectory, drive train, and aiming and positioning. The trajectory group calculated formulas to test the optimal angles and velocities to shoot the balls at. We wanted to design a single shot that would work for two different scenarios: when our robot is against the fender, and when a defending robot is between ourselves and the fender. When we are up close, this shot would bank off of the backboard and score. When we are separated by a robot, then we would be able to make a swish.
The drive train group finished with three different designs in mind. However, we simplified the results and decided that using idlers to cross the barrier would be the best way to go. The idlers would hit the barrier first, causing the robot to tilt up. This would make it easier for the wheels to go over the barrier, since there would be lower contact point between the wheel and the barrier.
The positioning group had the idea of using the forward and back controls to aim. This would lead to better resolution than turning in place. However, this would mean that the shooter would need to be positioned facing the side.