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How To Make Cottle Boards For Plaster Mold Making

Since I'm gonna make a lot of plaster mold for the hamster houses I make, I decided to build some cottle boards!

I bought these wood planks from Home Depot. It was very cheap!

First of all, you need to sand down all the edges of the wood planks.

They are very sharp and rough. you will get hurt from it D;