Difference between revisions of "FTC 7314 build September 2013"

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(14-September)
(14-September)
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:# Mechanisms for scooping up blacks from the floor; and
 
:# Mechanisms for scooping up blacks from the floor; and
 
:# a mechanism for raising the flag.
 
:# a mechanism for raising the flag.
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 +
The flag raising "forklift" was not very sensitive to alignment.  While originallt tested with a power drill, a follow-up test with a Tetrix motor powered
  
 
==Block Party! Field Photo Gallery==
 
==Block Party! Field Photo Gallery==

Revision as of 20:43, 14 September 2013

8-September

Presentation

Post-it notes

Block Party! scoring model - Siri Maley

We spent a good part of the meeting going through rules and especially the scoring and tournament ranking rules. We proposed some mechanisms but did not really define what we want the robot to do when we play Block Party!

So, our mission for Thursday is to define what we want are robot to do to play Block Party! This will be our game Strategy. From this, we will set functional specifications (again, focused on what and not how). Figuring out how to do it is a job for another day.

12-September

The team developed a prioritized game strategy.

Some observations made:

  • There are (4) clear pinch points on the field which will restrict movement. During tele-op scoring, robots will need to pass through these pinch points two times per scoring cycle.
  • Defensive blocking of autonomous bridge scoring will be straightforward.
  • Autonomous block scoring, on the other hand, will be difficult to prevent via defense.
  • But two alliance robots both trying to score in the IR Goal are likely to interfere with each other.
  • 24-28 Blocks will fit into each pendulum goal
  • When forced to extreme, the top of the baskets range from 27" to 7" above grade.

Opinions:

  • We think that raising the flag should be fast.
  • 3 sec was cited
  • an ungeared Tetrix motor should be able to raise the flag in about 7 sec (assuming it's got the torque).
  • We think a high-performance robot might make 4-7 scoring cycles during tele-op.
  • This would represent up to 16-28 blocks scored at 4 blocks/cycle
  • or 48-84 points if scored on the outer pendulum goals
  • plus 24-42 additional points if the pendulum is balanced
  • As mentioned above, blocking (purposeful and accidental) is likely to impact robots' ability to score in tele-op.

14-September

Reviewed Drive-trains, comparing tank drive with holonomic, mecanum, automobile and other drive strategies.

Also reviewed the function of the team's Drive-train mathematical model.

The team prototyped mechanisms in two different areas:

  1. Mechanisms for scooping up blacks from the floor; and
  2. a mechanism for raising the flag.

The flag raising "forklift" was not very sensitive to alignment. While originallt tested with a power drill, a follow-up test with a Tetrix motor powered

Block Party! Field Photo Gallery