For this week, as a class we molded our fingers. But unfortunately that did not work out as the plaster was wet. Then I went ahead on casting the fingers again. I started with mixing alginate with water in a 1:1 propotion. Then I poured this mixture into the silicone beaker and immediately inserted my fingers into it.

I waited for about ten minutes wherein simultaneously I mixed plaster of paris with water till it was of a normal consistency. Then I removed my fingers on pored the mixture into it. Then quickly I grabbed some tape poked holes into it and set the screw exactly in the middle of the finger half in air using the tape.

The next day I came back to take out my finger casts, I carefully tore down the alginate and removed the molded fingers and let them for about ten minutes. Later on I spray painted it with different colours to make it look pretty. And tada my fingers were ready to be screwed on the wall!!

 

 

Cost Type	Cost	Price	Source	Quantity	Total
Materials	Alginate	$0.70/oz	Dickblick.com	2.65 oz	$1.85
	Plaster	$1.94 /lb	Homedepot.com	0.09 lb	$0.17
	Silicone cup	$0.90 /cup	Amazon.com	1 cup	$0.90
	Spray paint	$6.19 /can	Target.com	0.1 can	$0.62
Labor	Molder/Caster	$15.75 /hr	Recruiter.com	0.5 hr	$7.87
	Spray Painter	$17 /hr	Ziprecruiter.com	0.25 hr	$4.25
	Prototyping Engineer	$39 /hr	Salary.com	0	0
Overhead	Facility Cost (Machine Time)  (Power Drill w/ mixer)	$4 /hr	Homedepot.com	0.16 hr	$0.64
	Quality Control	$24.5 /hr	Indeed.com	0.25 hr	$6.12
Design	Engineering and Development		Covered in Prototyping Engineer		$0
	Iterations	Multiply total cost		x3
Waste		none

For one pair of fingers: $22.4

Total Cost: $65.8