ROLLING DOWN ROCKY TOP
Blake HollisJordan Livesay
Kellen CataniSean Yu
D1 Team 3
Basics What is it?
Rube Goldberg device○ One input force = one task○ Inefficient and complicated
Bill of Materials
Concepts used Torque/ Rotational
Motion Spring Force Potential/Kinetic Energy Translational Energy
Building Process Tools used
Circular sawPower DrillJigsawHammer/NailsTape Measurer
Process Golf ball lies on top of a
board 0.2286 meters Trim piece connects to
the top and to the bottom with another board at a height of 0.0635m.
The golf ball will roll to the bottom of the trim piece with a velocity of 2.18m/sec. and strike a shaft (0.0635m) Shaft speed = 34.3 rad/sec
Second ball will hit a block Block speed = 1.01m/s
Process (Cont.) Block falls over and
starts dominoesDominoes speed
= .54 m/s Dominoes trigger
mousetrap Mousetrap releases
paperclip which allows banner to unfurl.
Calculations / Issues Issues
Absence of friction or losses of energy
Input force varies each time as well as direction of force
Ramps not sturdy○ Nailed ramp
Paperclip did not release○ Changed angle of
pull
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Summary After issues were
solved, device worked fairly efficiently
Fun creative use of common objects
Some issues could not be resolved but we found ways around them