Solar Car Derby - Revision history

Cmditradmin: /* Source for Materials */

2012-07-26T21:39:38Z

Source for Materials

← Older revision		Revision as of 14:39, 26 July 2012
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	[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]		[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]

			[http://www.lowes.com/pd_394366-40642-UT-1005_0__?productId=3699574&Ntt=500w+work+light&pl=1&currentURL=&facetInfo= Double 500W work lights]

Cmditradmin: /* Basic construction */

2012-07-26T21:36:17Z

Basic construction

← Older revision		Revision as of 14:36, 26 July 2012
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	When you have the basic model ready try a race. You can set up a side by side race or a race against a stop watch. Keeping track of times and variation in design reinforces the idea of methodical data collection in experimentation. In full sun either car should run freely until it reaches shade or an obstacle. If its not full sun or the surface is very rough you might have to give the cars a push to get them rolling. Let the students help develop the rules for the race, and develop categories if they feel that is more fair.		When you have the basic model ready try a race. You can set up a side by side race or a race against a stop watch. Keeping track of times and variation in design reinforces the idea of methodical data collection in experimentation. In full sun either car should run freely until it reaches shade or an obstacle. If its not full sun or the surface is very rough you might have to give the cars a push to get them rolling. Let the students help develop the rules for the race, and develop categories if they feel that is more fair.

	If you are using artificial light it is best to use ~~100~~ watt halogen spot lights because they have a focused beam and they emit part of their light in the infrared where silicon has extended absorption. Place the spotlight bulb in a clip on reflector holder which protects you from touching the outside of the bulb which can get very hot. Clip the light to a table or carefully hand hold it. ~~In addition portable 500W halogen worklights~~ are ~~pretty inexpensive and these cast~~ a ~~wide light over~~ the ~~area~~.		If you are using artificial light it is best to use 500 watt halogen work lights or incandescent spot lights because they have a focused beam and they emit part of their light in the infrared where silicon has extended absorption. Place the spotlight bulb in a clip on reflector holder which protects you from touching the outside of the bulb which can get very hot. Clip the light to a table or carefully hand hold it.

			If you are racing on a table top it is helpful to build a race track out of 1x2 pine boards assembled into a 2ft x 6ft frame with screws. This low wall prevent the cars from shooting off the end. Two double 500 watt self standing work lights are adequate to illuminate this size track.

	'''Some cautions:'''		'''Some cautions:'''
	* The halogen bulb produces enough heat that if left directed at these solar cells 2 ft from away they can melt the plastic casing of the cells in 20 minutes. Its better to turn on the lights only during a race and follow the car along the race course with the beam of the light.		* The halogen bulb produces enough heat that if left directed at these solar cells 2 ft from away they can melt the plastic casing of the cells in 20 minutes. Its better to turn on the lights only during a race and follow the car along the race course with the beam of the light.
	* These bulbs are not meant for rough use. Be careful when moving the holder or setting the holder down, especially if the bulb is turned on, or else you can jar the filament and burn out the bulb.		* These bulbs are not meant for rough use. Be careful when moving the holder or setting the holder down, especially if the bulb is turned on, or else you can jar the filament and burn out the bulb.
	* Watch out for heat. Only adults should attempt hand hold the light. If you use worklights on the ground make sure the area is clear and that people do not walk near the lights.		* Watch out for heat. Only adults should attempt hand hold the light. If you use worklights on the ground make sure the area is clear and that people do not walk near the lights.


	== Variations / New Designs ==		== Variations / New Designs ==

Cmditradmin: /* External Links */

2012-07-26T21:28:39Z

External Links

← Older revision		Revision as of 14:28, 26 July 2012
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	[http://www.phillysolar.org/gallery2010.html 2010 Philadelphia Solar Sprint Derby]		[http://www.phillysolar.org/gallery2010.html 2010 Philadelphia Solar Sprint Derby]

	~~[http://picasaweb.google.com/112917613430440314869/2010Expo?authkey=Gv1sRgCOaOwYibxOzTzQE&feat=directlink Picasa album from 2010 S&E Expo]~~

	== Source for Materials ==		== Source for Materials ==

Cmditradmin: /* Source for Materials */

2012-07-26T21:24:26Z

Source for Materials

← Older revision		Revision as of 14:24, 26 July 2012
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	== Source for Materials ==		== Source for Materials ==
	[http://shop.pitsco.com/store/detail.aspx?CategoryID=115&by=9&ID=2647&c=1&t=0&l=0 Pitsco ~~sunzoom~~ lite car $8.95]		[http://shop.pitsco.com/store/detail.aspx?CategoryID=115&by=9&ID=2647&c=1&t=0&l=0 Pitsco sunzoon lite car $8.95]

	[http://www.pitsco.com/store/detail.aspx?CategoryID=69&ID=2209&c=10-1\|69-2&t=&l=0 Pitsco sunEzoon car $12.95]		[http://www.pitsco.com/store/detail.aspx?CategoryID=69&ID=2209&c=10-1\|69-2&t=&l=0 Pitsco sunEzoon car $12.95]

Cmditradmin: /* Source for Materials */

2012-07-26T21:23:51Z

Source for Materials

← Older revision		Revision as of 14:23, 26 July 2012
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	[http://shop.pitsco.com/store/detail.aspx?CategoryID=115&by=9&ID=2647&c=1&t=0&l=0 Pitsco sunzoom lite car $8.95]		[http://shop.pitsco.com/store/detail.aspx?CategoryID=115&by=9&ID=2647&c=1&t=0&l=0 Pitsco sunzoom lite car $8.95]

	[http://www.pitsco.com/store/detail.aspx?CategoryID=69&ID=2209&c=10-1\|69-2&t=&l=0 Pitsco ~~Esun zoom~~ car $12.95]		[http://www.pitsco.com/store/detail.aspx?CategoryID=69&ID=2209&c=10-1\|69-2&t=&l=0 Pitsco sunEzoon car $12.95]

	[http://shop.pitsco.com/store/detail.aspx?CategoryID=69&by=9&ID=4426&c=1&t=0&l=0 Pitsco polycrystalline solar panel with clips $2.95]		[http://shop.pitsco.com/store/detail.aspx?CategoryID=69&by=9&ID=4426&c=1&t=0&l=0 Pitsco polycrystalline solar panel with clips $2.95]

Cmditradmin: /* Source for Materials */

2012-07-26T21:23:08Z

Source for Materials

← Older revision		Revision as of 14:23, 26 July 2012
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	== Source for Materials ==		== Source for Materials ==
	[http://shop.pitsco.com/store/detail.aspx?CategoryID=115&by=9&ID=2647&c=1&t=0&l=0 Pitsco sunzoom lite car $8.95]		[http://shop.pitsco.com/store/detail.aspx?CategoryID=115&by=9&ID=2647&c=1&t=0&l=0 Pitsco sunzoom lite car $8.95]

			[http://www.pitsco.com/store/detail.aspx?CategoryID=69&ID=2209&c=10-1\|69-2&t=&l=0 Pitsco Esun zoom car $12.95]

	[http://shop.pitsco.com/store/detail.aspx?CategoryID=69&by=9&ID=4426&c=1&t=0&l=0 Pitsco polycrystalline solar panel with clips $2.95]		[http://shop.pitsco.com/store/detail.aspx?CategoryID=69&by=9&ID=4426&c=1&t=0&l=0 Pitsco polycrystalline solar panel with clips $2.95]

Cmditradmin: /* Source for Materials */

2012-07-26T21:19:19Z

Source for Materials

← Older revision		Revision as of 14:19, 26 July 2012
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	[http://www.goldmine-elec-products.com/departments.asp?dept=1173 Electronics Goldmine solar cells]		[http://www.goldmine-elec-products.com/departments.asp?dept=1173 Electronics Goldmine solar cells]

	[http://www.dealextreme.com/p/world-s-smallest-solar-powered-car-37373 Solar mini car- $2.29 direct from China- (delivery is slow)]		[http://www.dealextreme.com/p/world-s-smallest-solar-powered-car-37373 Solar mini car- $2.29 direct from China dealextreme- (delivery is slow)]

			[http://www.amazon.com/Solar-Car-Smallest-Powered-Educational/dp/B004FEXUP4/ref=sr_1_1?ie=UTF8&qid=1343337451&sr=8-1&keywords=mini+solar+powered+car Solar mini car from Amazon $1.99]

	[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]		[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]

Cmditradmin: /* Source for Materials */

2012-03-06T19:50:23Z

Source for Materials

← Older revision		Revision as of 12:50, 6 March 2012
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	[http://shop.pitsco.com/store/detail.aspx?CategoryID=69&by=9&ID=2553&c=1&t=0&l=0 Raycatcher car (big panel) $69]		[http://shop.pitsco.com/store/detail.aspx?CategoryID=69&by=9&ID=2553&c=1&t=0&l=0 Raycatcher car (big panel) $69]

	[http://www.goldmine-elec-products.com/~~prodinfo~~.asp?~~number~~=~~G17890 Powerful, encased panel 1.5 V, 1.4 amp $7.95~~]		[http://www.goldmine-elec-products.com/departments.asp?dept=1173 Electronics Goldmine solar cells]

	[http://www.dealextreme.com/p/world-s-smallest-solar-powered-car-37373 Solar mini car- $2.29 direct from China- (delivery is slow)]		[http://www.dealextreme.com/p/world-s-smallest-solar-powered-car-37373 Solar mini car- $2.29 direct from China- (delivery is slow)]

	[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]		[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]

Cmditradmin: /* Source for Materials */

2012-03-06T19:45:41Z

Source for Materials

← Older revision		Revision as of 12:45, 6 March 2012
Line 129:		Line 129:

	[http://www.goldmine-elec-products.com/prodinfo.asp?number=G17890 Powerful, encased panel 1.5 V, 1.4 amp $7.95]		[http://www.goldmine-elec-products.com/prodinfo.asp?number=G17890 Powerful, encased panel 1.5 V, 1.4 amp $7.95]

			[http://www.dealextreme.com/p/world-s-smallest-solar-powered-car-37373 Solar mini car- $2.29 direct from China- (delivery is slow)]

			[http://www.mini-rc-cars.net/minirccar34-green.aspx remote control car]

Cmditradmin: /* Derby Tools and Materials */

2012-03-06T19:35:06Z

Derby Tools and Materials

← Older revision		Revision as of 12:35, 6 March 2012
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	=== Derby Tools and Materials ===		=== Derby Tools and Materials ===
			[[Image:Minicar.jpg\|thumb\|300px\|Mini cars are fun but still need full sun]]

			[[Image:Remotecar.jpg\|thumb\|300px\|A 3 volt solar panel is wired into the charging jack on bottom. In full sun it runs great or charges internal battery under lights.]]


	'''Tools'''		'''Tools'''
	*Hot glue gun and low temperature hot glue		*Hot glue gun and low temperature hot glue
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	*Volt /multimeter		*Volt /multimeter
	*Clip on light bulbs		*Clip on light bulbs
	*Halogen Spotlight		*100 Halogen Spotlight (gets a little when used very close)
	*100W fluorescent		*100W fluorescent (good for prolonged exposure up close)
	*Halogen ~~work~~ worklight		*500 Halogen worklight on stand (very hot- works best for indoor race)
	*Stopwatch		*Stopwatch
	*Smooth surface for races		*Smooth surface for races