Download Rofl-Fan-Project

“Rofl”-Fan Project
Gavin Henry
Cody Lightfoot
Mathew Sewell
Mathew
Our Team!
Gavin
Cody












Scrap 4 x 4 wood and Plywood
Funnel
Fan Blade
Marbles
PVC Pipe
Scrap Wire
Mouse Trap
Fishing Line
All Thread
J-Hooks
Metal Bolt
¼ Nuts (For all thread)
Material’s we used.
** Before we even
started on the project,
we illustrated it and got
ideas by using AutoCad.
AutoCad was very
helpful and we used it
as a guide.
Our Project in AutoCad
Materials
Price
Quantity
Total
Funnel
.95 cents
1
.95 cents
Fan Blade
$ 2.00
1
$ 2.00
PVC Pipe
$ 1.00
2
$ 2.00
Plywood
$ 1.00
1
$ 1.00
Marbles
.75 cents 2
$ 1.50
J-hooks
.55 cents 4
$ 2.20
10x24 all thread
$ 1.75
1
$ 1.75
Fishing Line
$ 1.50
1
$ 1.50
1/4in nuts
Scrap Bolt
.10 cents 4
.40 cents
.50 cents 1
.50 cents
Mouse trap
$ 2.50
Other Scraps
$ 2.00
Grand Total
Our Final Costs?
1
$ 2.50
$ 2.00
$ 18.30
We needed various tools not provided at Estabrook so
we had to travel to Morristown TN to use Matt’s work
shop for the tools.
 We had problems getting the mousetrap to pull the
axle, so we had to drill the trap and put screws threw
it and put 4x4's on the bottom to provide hold.
 We couldn't find eye bolts with a long enough shank
on them so we had to purchase j bolts and take a
torch and bend them to desired shape.
 We first had 12 lb fishing line used which had to be
changed to 20 because it was breaking under the
torque of the trap

Problems we encountered





Torque- the mouse trap gave us the energy
to rotate the “gear system” we used.
Conservation of translational energy-when
the first marbles started, it rolled down the
hill into the pipe and to the funnel.
Center of mass- when the fan blade is
mounted, it balance on the J-hooks.
Conservation of angular momentum-When
the axel is moving, it shows angular
momentum throughout the gear system.
Conservation of rotational energy- it is also
when the marble rolls down the pipe.
Concepts device demonstrates
** The Lantern battery
simply because it was cheap
and looks cool.
**At the end of the last tube,
our final marble hits a push
button that turns on the LED!
Electrical Device?