Aluminum
Aluminum cast scram
These odd castings, straight from the sand, will be part of the same coffee table. It is made from not-too-judicious selection of aluminium bits, some extrusion. Looks very poor finish now, but turns out OK in the end, which goes to show, it can be used for non critical parts.
Castings are best, but which?
The best aluminium source to look out for is scrap cast aluminium. As you are making a casting too, it’s a fair bet the alloy is going to be useful. Scrapped cars and other vehicles can be a great resource, look out for old cylinder heads, alloy wheels, pistons and connecting rods (probably the strongest and finest quality alloy for casting), cast housings etc. Also well worth saving are old hard disk drive casings.
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