WEEK ONEOffensive/defensive evaluation: Define all functionalities of the gamebrainstorm early designs, evaluate feasibility, resource requirements

• Shooting (High Goal vs. Low Goal) & throwing over Truss,

• Catching,• Defending,

Integrate strategy with designstrategy and preliminary designAssigned roles and broke into IPTS addressing

each aspect of the basic designFinal strategy: driving and shooting in autonomous, teleoperated shooting over the truss, and scoring in the high goal.

Evaluate systems requirements and prototype proposed ideas Catcher:

• Panels • Net: most effective out of proposed

designs, however, space and liability concerns eliminated catching device as a priority

Retriever: • Rotating Angular rods• Grasping Arms/Claws• Wheels: quick, auto-correct ball

placement, fewest potential points of failure

• Belts Drive-Train

• Mechanum Wheels: max agility• transmission placement and motor types• Regular Drive

Shooter: • Winch• Elastic tensioning:powerful, simple• Pneumatic piston

Evaluate performance and feasibility of designs with calculations and prototype testing

• Complexity• Capabilities,• Costs/weakness

Begin AutoCAD of Final robot

WEEK TWO

High Level Designing, fine tuningo Drivetrain: larger than the maximum

perimeter required. Pneumatics calculations and weight management for slots to drive train were made.

o prototyping & calculating, we determined geometry-- pneumatic placement,

angle, and desired height of shooter, retriever, and pneumatics

Wheel type (Small vs. Big) on retriever, Placement of the retriever motor,

avoiding damage to chain and ballo With the wooden prototype we determined

the desired: Elastic System, amount of force

necessary, and amount of tension needed to achieve optimal level of force

Pulley positions, within slots on robot Type of cable for pulley Latching system (Latching tool, latching

mechanics), to hold shooter device in place

WEEK THREE

WEEK FOUR

Drive Train: final autocad design• Design/integrate subsystems within each

other within a confined space• Cross-sectional integrity • Weight management—CAD design with

laser-cut gaps• structures to hold batteries, gearboxes,

pulleys, electronic board• slots for mounting/adjusting pulleys

Pneumatic CalculationsTanks and Compressing Time

• Discuss trade-offs: weight, integrity, reset speed

• Correct measurements for chassis and adjustable retriever assembly consolidated in AutoCAD file

Testing wooden and metal prototype: -tensioner slack issue resolved with

elastic rings - Moved shooter mount to the front.

Pre-integration Software and Mechanical Testing

o Autonomous software for Autonomous mode

o Autonomous coding for cycle resets

o LEDs to indicate positions - Testing Results and Modifications

o Shooter Bending metal frame Shooter slack solved with

elastic ring Bending shooter mount in

the fronto Retriever

Cross-structure too weak Pneumatic mount had to

be re-adjustedo Drive Train

Dimensions o Overweight problem

WEEK FIVE

WEEK SIXFinal design Re-evaluation Weight issues with the sheet-metal CAD pieces Top-heavy component removed,

pneumatic triangles on either side.

Replaced with stronger and lighter hollow triangular welded square tubing

Camera placement chosen to spot autonomous lighting in response to code

• Continued to construct, fine-tune practice robot for use after bag-and-tag

• Practice with practice robot• Final adjustments on competition

robot