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Heimo's metal casting thread

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Heimo's metal casting thread

Unread postAuthor: Heimo » Sat Jan 09, 2010 3:16 pm

I am starting this thread here cause there seemed to be some interest when I posted a pic of the fan I made a while back

I am kicking this thread off with a video of me casting a disc for a disc sander

unfortunately I do not have any pictures of the molding procedure but I need to cast another disc like this Monday so I will take some pics on how a mold for metal casting is made

the furnace I used in the video is a homemade one I made and it is fired with waste oil

here is the video

[youtube]http://www.youtube.com/watch?v=l_iNg26ClFk[/youtube]

I would just like to note that I over heated the metal in that video on accident :oops: it is not supposed to be that hot, the metal being hotter then it is supposed to be is the reason for the bad surface finish on the casting

I also think that being able to cast metal will allow you to make a lot of custom parts for launchers that will be very durable and a lot stronger than PVC and believe it or not but making a casting is a lot easier than it is to make the part from a piece of stock.

more later :wink:
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Unread postAuthor: psycix » Sat Jan 09, 2010 3:25 pm

Better than epoxy casting. :D

This technique is rarely used in the spudding community, yet a very useful one. I think a few howto's on metal casting might be a valuable addition to spudfiles.

Combine this with some machining, thread tapping and polishing and you can build nearly anything.
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Unread postAuthor: jackssmirkingrevenge » Sat Jan 09, 2010 3:34 pm

psycix wrote:Better than epoxy casting.


In some ways, in terms of the strength of the final product - but for epoxy the mould only has to be leak prook, not fireproof :P :D
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Unread postAuthor: Heimo » Sat Jan 09, 2010 3:34 pm

psycix wrote:
This technique is rarely used in the spudding community, yet a very useful one. I think a few howto's on metal casting might be a valuable addition to spudfiles.

Combine this with some machining, thread tapping and polishing and you can build nearly anything.


that is what I intend on doing, I intend to show you guys some simple metal casting techniques and I will also show how to build a simple furnace but that will take some time since school starts again an the 13th over here and it is my final year so I expect to be busy
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Unread postAuthor: john bunsenburner » Sun Jan 10, 2010 3:56 am

As of yet i suggest for people who are intrested to have a look at http://www.backyardmetalcasting.com and http://www.backyardmetalcasting.com/forums. Lots of good info on there from machining to burner designs.
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