Black & Decker Drill / Driver

Group #15

Doug Byrne

Holly Czechowski

Lauryn Brown

Rohan Thadani

Jon Barsa

Product Specs

• Driving Screws / Drilling holes

• 3/8” Variable Speed Drill

• 5 Amps

• Directional Switch

• Keyless Chuck

• Includes Level and Drill Bit Attachment

Individual Components

Keyless Chuck Directional Switch

Level Extra Drill Bit Storage

How Does It Work?• Electrical Energy >> Mechanical Energy

• AC Motor

• Major Components:– Stator– Commutator– Rotor– Gear Assembly– Fan

Individual Components

COMMUTATOR ROTOR

MOTOR STATOR

Individual Components

FAN

GEAR ASSEMBLY

Suggestions• Multiple position lock on Trigger

– Higher Cost (-)

– More Convenient (+)

• Longer Cord

– Higher Cost (-)

– Less Extension Cords (+)

• Get Rid of Level

– Inaccurate due to loose fit (-)

– Save Money (+)

Gear Assembly

Wikipedia Page:

http://gicl.cs.drexel.edu/wiki/

Group_15_-_Black_and_Decker_Drill