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Re: coring lead
Posted by bpfink on July 15, 19100 at 06:23:17:
In Reply to: Re: coring lead posted by Lyle Landstrom on July 14, 19100 at 11:13:58:
If you make your mold have a simple box like mother mold to hold it, and then screw 2 pivot bars to it so you can tip/rotate it upside down without jarring drastically you should be able to slush cast them without any core at all.
I did about one pour each 10-12 minutes using 2 different sized molds when doing this.
Another but much more complicated system is to do a rotating mold with no open sprue. It needs to be rotated in all directions and means a mechanical or motorized plan pattern with 4 points of turning. They make machines just to do that, and one could be assembled from scrap once you saw how it functioned. They turn very slow and keep rotating during the cooling and you put in a very measured amount of metal each time and expect it to all