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Fresh Paint
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Re: How do i make this with metal??
Pounding it out of one sheet would be ideal but not easy to accomplish. You'd need a shot bag and the right hammers. Shot bags run $50 and up depending upon the size and if you get them filled or empty. I think the hammers are about $30 and up each. I haven't priced them in a while. If you have access to an english wheel that may get you the top part and then you could join the rest of the case to it. There may be a place locally that does metal work, that may be the easiest way. Your strip idea should work but you'll probably have to run one or two strips underneath perpendicular to the strips making the dome and rivet them in place. Don't worry about the rivets as the bondo would cover them.
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Re: How do i make this with metal??
Another option, is How big (depth of curve, and Diameter) Look into using a Stainless Bowl. Cut the lip off make a band just smaller then the inside of the bowl, that way the the cone will fit tight to the body.
The other way would be to pound it out of one piece. but as mittel pointed out the equipment for that isn't cheap. If you were going to reuse it all, then it's a good investment, but if it's just for this project Look for a bowl.
Oh, you can pick up an English wheel from Harbor freight for $150.00
and a PLANISHING Hammer (to speed up the pounding part)
Note, these are cheap imports so they may not be the best choice for everyday use, but as a starter it's a cheaper option.
Good Luck,
CrazyBillyBob
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Fresh Paint
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Re: How do i make this with metal??
You maybe further ahead using something like JB weld to fill that in then Bondo.
JB weld is a metal reinforced epoxy, It's runny when first mixed, but then it hardens into a solid that can be sanded, or even tapped. It will not crack and split like a heavily bondoded part may.
You need to prep the area that your going to use JB weld on (or even bondo), Scuff it with some 100-150 Grit sand paper and wipe it down with Alcohol or Acetone.... Let it dry thoroughly then apply the JB weld or Bondo.
If there is any oil, or contaminants on the metal the Bondo or JB Weld will not stick well and may pop off (in one big chunk, or several slightly smaller chunks!)
I still think going to WalMart or Target and getting a $5 stainless bowl is less work....
Good Luck!
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