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| vtsteam:
Norman, maybe some kind of rolling frame? Like two plywood disks with a rectangular cutout in the center? Maybe it is split, and latches together to do the roll, then latches are released to lift the cope? |
| awemawson:
I ran a 10x6 rsj across the roof of my last foundry and had a trolley running on it with a chain block.Not only useful for lifting large crucibles, and pouring them, it was handy for lifting the furnace, which I had in a pit in the floor. You could easily jury rig something similar over your furnace. A horizontal scaffold pole and runner would probably be enough with an 'A' frame either side. |
| NormanV:
Up to now the biggest casting I have made is the bed for the Gingery lathe, most of the castings for my milling machine will be around that size so I know that I will be able to handle them. It is only the main table that is so big that it will be a problem. It will need to be rolled twice, I was thinking of fitting a pivot each end of the flask and support it with a frame similar to what Andrew is suggesting. I am intrigued by Steve's idea but it sounds as though it would need a lot of space to roll it over, which I don't have. I am going to build a moulding bench that will have to live outdoors. First I have to find some old pallets that I can dismantle for the timber. Norman |
| vtsteam:
Norman, another possibility is to make your bed in a couple of pieces rather than one, with flanges that bolt together. The flanges will actually help stiffness and act as webs. If it's anything like the Gingery, it will scraped (or milled) after, and then be covered with a full length slab of cold rolled steel anyway. It will easily be as strong and stiff as a full length bed, and the molding, melting and casting will all be easier. |
| SwarfnStuff:
OOPS My error. Didn't look far enough into the posting. :hammer: Apologies to both Awemawson NormanV. Better get me glasses checked - Again. :doh: John B |
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