Is painted aluminum usable for melting? Yes!

Monday, June 28th, 2010 at 11:21 pm  
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Painted, annodized, and oily aluminum scrap melts just like bare aluminum, but with two differences – the surface impurities burn off as toxic smoke and/or ends up as dross. Thought you’d like to know. When I started melting aluminum,this is one of those questions I worried about.

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Opening a Petrobond Sand Mold

Saturday, May 8th, 2010 at 9:03 pm  
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Just a quick video of the opening of a petrobond sand mold. *Always remember to let the metal part cool enough to handle. I always get a little anxious to pop it out of the sand to see the results before it’s fully cooled down but that’s just me… :D

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DIY Foundry: What not to wear!

Sunday, May 2nd, 2010 at 11:50 pm  
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Melting down more scrap aluminum, pouring ingots, all done in flip flops on the back patio. This is not a safety video. Let’s just call it “What not to wear in the foundry.” That’s right folks, you have to wear safety gear, even if you see a guy on youtube pouring metal while wearing shorts. Also shows off my new ingot mold, made by welding together some 3/16″ x 2″ flat bar and 3/16″ angle.

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Casting Aluminum w/ Homemade Furnace

Saturday, April 17th, 2010 at 9:06 pm  
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Here I am casting a part for a Crayford Style Focuser to be used with a 8″ Newtonian telescope I’m building. I’m using a propane furnace, a graphite crucible, and the “mold” is a tin soup can. I need a stock of aluminum about 3″ in dia. Before you say it, I know it is not safe to cast metal with flip-flops and shorts, but it’s the middle of summer in Phoenix here…

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Homemade easy and cheap propane aluminium foundry.

Monday, April 12th, 2010 at 4:14 am  
Comments (18)

My sixth variant of propane furnace for aluminium scrap melting and casting into simple forms.

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