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Norm's 2 stroke repair center Having problems with your 2 stroke engine? Just ask Norm, he loves to tinker and troubleshoot engines

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  #221  
Old 01-17-2014, 03:38 AM
Foundry_Man's Avatar
Foundry_Man Foundry_Man is offline
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Join Date: Jan 2014
Location: Melbourne, Australia
Posts: 19
Default Re: Casting Metals

all our castings are made with hard sand (2 part resin mix), which is where it can get tricky in just making the molds and getting the pattern out, but also casting them, especially on something like a cylinder barrel

such as these vincent ones we cast for Terry Prince



lost wax/foam would be ideal, but we aren't setup for that,
also green sand would be another good option of course.

Last edited by Foundry_Man; 01-17-2014 at 05:45 AM.
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  #222  
Old 01-17-2014, 06:30 PM
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Mr.B. Mr.B. is offline
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Join Date: Oct 2008
Location: Upper Mississippi River valley
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Default Re: Casting Metals

Wow, that’s some really nice looking work there!

And thanks for the advise!

Mine will be much simpler than the stuff in your photo, and I thought I’d taper the fins just a little to make it even easier to pull out of the green sand.

Besides, I only need just a single good one so I can just keep trying until I get it right... Ha!

-Kirk
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First build video- http://alturl.com/9xptf. And Imgur album- http://imgur.com/a/WJjRl#0
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  #223  
Old 01-19-2014, 04:14 AM
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Foundry_Man Foundry_Man is offline
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Default Re: Casting Metals

most definitely add taper to the fins! makes all the difference
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