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Old 01-07-2017, 03:17 PM   #11
jef-lemmens
 
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Originally Posted by vederstein View Post
From the pictures I think I understand how you did it. Yet I still have a question. Did you have stop blocks or some device to ensure the pattern didn't protrude too far though the wooden plate?

I'm having a bit of a time understanding how you ensure your final casting was round and not oblong.

(Sorry to be a pest, but if I get a bonus this year from my company, I plan on getting into casting. So I'm trying to learn what I can.)

Thanks,

...Ved.
Absolutely no problem to answer your question, see attached drawing/picture, maybe it's obviously so, and otherwise ask again .

Regards Jef


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Old 01-07-2017, 03:22 PM   #12
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BTW what kind of paint do you use for patern painting ?
MOTIP car paint from a spray can

Regards Jef


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Old 01-07-2017, 03:28 PM   #13
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Good job, very nice parts.Show us your furnace. Mark T
Thanks Mark , I still have no furnace, I use a stainless steel pot and an oxygen-acetylene burner , but the intention is there to build one in the future .

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Old 01-07-2017, 05:26 PM   #14
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Thanks for the extra info.
I had a feeling you were using oil bonded sand.
I also have oil bonded, but a DIY variety called K-Bond, as Petrobond is not available over here (that I have found)
Cheers!
http://www.foundry.ray-vin.com/k-bond/k-bond.htm


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