Pelican Rapids Project Update

Had a successful pour today of 4 of the heads for the benches.

sand molds after having just been poured

sand molds after having just been poured

This is what they look like after coming out of the mold. More work is required to make them just right.

This is what they look like after coming out of the mold. More work is required to make them just right.

Another good casting

Another good casting

This is what the mold looks like before closing to cast it. The cardboard pattern is on the right.

This is what the mold looks like before closing to cast it. The cardboard pattern is on the right.

The black stuff on the mold is mold wash. It fills in the tiny spaces between the grains of sand to make a more refined surface and to save time later grinding to achieve a fine texture.

The black stuff on the mold is mold wash. It fills in the tiny spaces between the grains of sand to make a more refined surface and to save time later grinding to achieve a fine texture.

Resin bonded sand molds for bench project

Here are a couple pictures of resin bonded sand molds for cardboard patterns. Note how thin the molds are. That is because there is only a thin piece of cardboard in each mold. Although the cardboard pattern is 3/8ths of an inch thick the mold needs to be 4 inches thick to keep the 2,000 degree metal from burning out of the mold. The 3 benches will require 3,300 pounds of sand and 600 pounds of bronze.

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Pelican Rapids Update

These are the faces that I will be casting for the benches. I have included pictures to give you an idea how they will look together with backs and arms. It’s hard to put them together in cardboard with tape as they just collapse from their own weight. fortunately when they are solid bronze they hold up much better.

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