Parts and Materials for Electrostatic

Force Demonstration Apparatus

Equipment	Supplier	Website	Bulk Price	Price Per Unit
Jennings JS-50x Precision Digital Pocket Scale	SaveOnScales	http://www.saveonscales.com/product_jennings_js50x_digital_pocket_scale.html	$35.90	$35.90
Plastic Board (21 x 31 cm) ½” PVC Recommended	McMaster Carr	http://www.mcmaster.com/itm/find.ASP?tab=find&context=psrchDtlLink&fasttrack=False&searchstring=8747K139	$41.75	$10.41
1" Dia. Black Delrin Rod	McMaster Carr	http://www.mcmaster.com/itm/find.ASP?tab=find&context=psrchDtlLink&fasttrack=False&searchstring=8497K313	$4.75	$4.75
PVC Block for Caliper Support	McMaster Carr	http://www.mcmaster.com/itm/find.ASP?tab=find&context=psrchDtlLink&fasttrack=False&searchstring=8662K19	$16.23	$5.40
Banana Jack Dual Binding Post - 274-718	Radio Shack	http://www.radioshack.com/product/index.jsp?productId=2102838&cp	$4.99	$4.99
Alloy Steel Button Head Socket Cap Screw 1/4"-20 Thread, 3/4" Length - 100 per package	McMaster Carr	http://www.mcmaster.com/nav/framework.asp?reqtyp=catalog&CtlgPgNbr=2979&sesnextrep=616853790379949&CtlgEdition=112&k1=91255A540&t1=PN	$13.91	$0.56
Two 10 cm Diameter 1/16” Thick Aluminum Plates				~$2.00
6” Digital Caliper	Harbor Freight	http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=47257	$19.99	$19.99
Misc: Short Length Fine Copper Wire, Small Piece of Copper Tape				~$0.50
Plastic Spring Clamp 2”		McMaster Carr Part Number 50065A22		$2.50
Machine Shop and Assembly Labor				$50.00
			Total:	$137.00