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How can i make a gap in my mould


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So i'm trying to make a mould of an old axe head i have (which i believe is viking inspired) to bronze cast as a gift. I use green sand to make my mould so my problem is that i can't get a mould to keep the gap in the axe-head. 

The only idea i have come up with is putting a steel rod made into the shape of the gap and putting it into the mould but i would prefer an alternative as this would take a lot of time and i don't think i have the proper tools.

If anyone can come up with an alternative way i would appreciate it.

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Assuming you are casting this so that the axe eye is vertical you could make a post in the shape of the eye from whatever material you would use if you were doing lost wax casting.  If you embed that in your sand that should retain your eye shape and you can just chip it out after the bronze cools - I think.

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  • 7 months later...

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