Dear Diary,
Refer to Mr. Xie’s spreadsheet for details. Today was spent largely clarifying rules and discussing strategies. We haven’t considered how to do many of the tasks because we are still largely focused on deciding which tasks we care about. Random idea of having a swinging weight to help give us momentum but not practical because a large weight and moment are needed. Annotated agenda:
1. Decision on required functionalities of this robot (still no real conclusions
2. Review previous designs of our robots and other team robots for the same or similar functionalities (04 Hang em’ High)
3. Understand and update rules (worked a lot with the subtleties of the rules. No updates b/c Q and A not up yet. )
4. List questions or issues related to the functionalities. Resolving these questions and issues will lay out our design requirements. Some prototyping tasks may emerge. (building a kicker, possibly a vacuum? take it off 08?) Conceptual design will possibly be discussed at the same time. (not here yet)
Questions to answer as soon as we can are…
- What is the initial speed for a ball to go over one bump or two bumps assuming a ball roll forward without rolling friction resistance. (***can’t ever really roll ball over 2 bumps*** if it’s going to fast, will get airborne off the top of ramp. Topspin helps)
- Design Issue: Given the restriction of that a ball is only allowed to get into a robot frame 3 inches, what is the best way/design controlling a ball in our robot possession, not arbitrarily bump a ball away? How can a robot get possession of a ball if the ball touches boundary/wall? (does it need to be in possession ever? Is simply kicking away such a bad idea?)
- For going over a bump, what is min. robot bottom clearance to the floor? What is max. height of the center of gravity before tipping (assuming the center of gravity is along the vertical center line of a robot)?
- For hanging robot, if elevating speed is 1 m/s and total robot weight is 150 lb (68 kg), what is power required to do that?
-Autonomous mode will be an afterthought not of utmost importance.
-Chinmay
