2012:Shooter and Collector: Difference between revisions
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*Just a plain bars, no actual motion on the bars themselves | *Just a plain bars, no actual motion on the bars themselves | ||
*Motion must be able to pull unloaded bridge down from horizontal | *Motion must be able to pull unloaded bridge down from horizontal | ||
*<span style="color: red">Determine motor or pneumatics | *<span style="color: red">Determine motor or pneumatics</span> | ||
** | **<span style="color: red">This also drives sensors (not needed for pneumatics)</span> | ||
** | **<span style="color: red">If motor, decide speed controller or not</span> | ||
= | = Ball Movement/Storage System Design = | ||
* | *<span style="color: red">Two designs - not decided yet. DECIDE ME</span> | ||
** | **<span style="color: red">See drawings on shop wall</span> | ||
= | = Resources = | ||
* | *[http://www.penfieldrobotics.com/wiki/images/e/ea/BallTrajectoryCalculator.xls Ball Trajectory Calculation spreadsheet] | ||
* | *[http://www.penfieldrobotics.com/wiki/images/0/0a/TrajectoryMath.doc Math behind the above spreadsheet] | ||
* | *[http://www.grc.nasa.gov/WWW/k-12/airplane/foil3.html Foil Sim III] - Air flow simulator; useful for approximating drag effects on a ball | ||
* | *[http://penfieldrobotics.com/wiki/index.php?title=File:2012_MotorInfoRevised.pdf Motor Specs from FIRST] | ||
= | = Shooter and Collector Master Task List = | ||
= | = Shooter and Collector's Engineering Notebook = | ||
== | == Week 1 == | ||
* | *[[2012:Shooter and Collector 01.14|1/14]] | ||
== <span style="color: red"><span style="color: red">Week 2</span></span> == | == <span style="color: red"><span style="color: red">Week 2</span></span> == | ||
Revision as of 08:36, 21 January 2012
Shooter Design
- Turret-mounted
- Approx. 280 degrees of rotation minimum need final range
- 1-degree precision
- Mechanical hardstops
- Absolute angular position sensor
- Need motor and power controller
- 2-Wheel shooter
- Must be able to impart backspin
- Fixed angle of shot -- approximately 60-70 degrees above floor
- Each wheel independently controlled (to control backspin)
- Powered by Fisher-Price motor on speed controllers
- Sensor for RPM on each
- Provide sufficient resolution for rapid speed control update
- Identify sensor characteristics
- Camera mounted on turret
- Must have direct light source inline with lens
- Do we need pan? tilt?
2012:Shooter and Collector Camera
Beater Bar Design
- Fixed position within frame, as close to perimeter as possible
- 1 speed forward, 1 speed reverse (full speed? can use relay?)
- Pushes balls in and on to first conveyor section
- Identify motor
Wings/V-collector Design
- V-shaped collector outside of robot
- Articulated up/in and down/out -- 2-position motion
- Just a plain bars, no actual motion on the bars themselves
- Motion must be able to pull unloaded bridge down from horizontal
- Determine motor or pneumatics
- This also drives sensors (not needed for pneumatics)
- If motor, decide speed controller or not
Ball Movement/Storage System Design
- Two designs - not decided yet. DECIDE ME
- See drawings on shop wall
Resources
- Ball Trajectory Calculation spreadsheet
- Math behind the above spreadsheet
- Foil Sim III - Air flow simulator; useful for approximating drag effects on a ball
- Motor Specs from FIRST
Shooter and Collector Master Task List
Shooter and Collector's Engineering Notebook
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Engineering Notebook Templates Available at:Engineering_Notebook_Template
Please Label All Notebook Pages 2012:Shooter and Collector XX.XX to avoid confusion.
