A week ago we had Modling and Casting tutorial in class.

The first step is to create a mold by alginate, mixing water and alginate in a 1 to 1 ratio and stirring as fast as possible for 5 minutes, inserting your finger just before the mold is about to set.

The fingers are then removed just before the mold is about to set to prepare the plaster, which is mixed in a 2 to 1 ratio of plaster to water, making it easier to mix as opposed to alginate.

Pour the prepared plaster into the molds and subsequently wait only 12 hours.

Repeat the steps for the second finger.

Once both fingers are done it’s time for pro-processing, I chose to spray-paint my fingers red.

This step has been discussed many times before, so I won’t go into detail here.

Working place cleaned up

Cost Type	Cost	Price	Source	Quantity	Total
Materials	Aginate	$16/ 13 oz	Walmart	100 g	$ 4
	Plaster of Paris	$10.93/4 lbs	Home depot	100 g	$0.63
	Spray paint	$5.98/can	Walmart	1/6	$1
Labor	Molder	$16/h	Zip recruiter	1h	$16
	Prototyping Engineer (You!)	$36/h	Zip recruiter	1h	$36
	Facility Cost	N/A	outside of OEDK	1h	$0

Total: $57.63

The cost components in this case are very simple, the main part of the cost is the labor cost, which needs to be carefully considered if the production is to be carried out, especially for the Molder, as usually Aginate molds are very difficult to reuse and usually break after the first or second use, so this can be a potential cost increasing factor. Consideration can be given to using more expensive but longer lasting materials to minimize costs.