6.270 Team
12 Design
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The Design
Initial Design – Z came up with an idea
to shoot balls out so that we wouldn’t have to travel to score in
scoring areas or voting
areas. The shooting idea finalized to
something like the following picture:
Pros: Takes less time to score/vote Cons: Harder to build and code
Look Cooler
Needs more servos and motors
More Strategies Limited time
The problems we came across with were that there seemed to be not
enough room to fit the shooter and the ramp to the color sorter. Also it was not very easy to put so many
different things in one robot since none of us were good lego builders, it made
our task more difficult. After 2 days of
working on this design, we only had the wheels, gear train, storage box for the
red balls and the shooting wheels. We
didn’t know if we would have enough legos to put it all together much less make
it stable. At 11:00 pm on Thursday night
we put it in the 1 sqr. foot box on the competition board and figured that … we
couldn’t fit it all in 1 sqr. foot so we unhappily gave up our design.
Final Design - So for
the 2nd design we decided to go much simpler so we looked at the
past year’s Humball and went with a ballgate.
Our ballgate goes up and down with two servos because one servo could
not easily take upon the weight of the ballgate. (too heavy on one servo is bad because when
batteries are low, the servo won’t be able to function properly). We have two motors on each geartrain (75:1)
to have enough torque to carry the robot.
One castor wheel servo. Here’s
our design:
Advice for the
future:
-
don’t put a lot of weight on the castor wheel
-
don’t brace things that aren’t lego units
-
Don’t PLUG in rf receiver into the interface (:-p this is a common
problem:-p)
-
Don’t use all your lego pieces :-p or else you’ll be digging for
them
-
The rf sucks … don’t use it!!!
-
Interactive C doesn’t seem to like != (or that’s what we think)
-
BE VERY LUCKY!
-
Zap charge your handyboard during competition between rounds!
(Have a Magician on your team otherwise :-p)