Jan. 14th, 2007

melstav: (Fred Fredburger)
MELTING METALS IN A DOMESTIC MICROWAVE

The page's summary:

The first part of this Foundry Note describes a technique for using a domestic microwave oven to melt and cast, to accurate shape, small quantities (up to a quarter of a kilo) of bronze, silver, white metal or iron. The technique has been used to cast pieces from ceramic shell moulds up to about 18cm high, and is an accessible alternative to other small-scale melting set-ups, for example the flask casting of jewellery.

The second part of the note describes thoughts and tests which led to the procedure. It offers guidance and some warnings, to anyone making investigations into metal heating by microwave.
melstav: (Default)
Lightbulbs

We are planning to buy a bunch of Full-Spectrum fluorescent bulbs for our home. They're ~$2.40 each, plus shipping. We assembled a few test orders, and for 10 bulbs, we're looking at $10 in shipping charges. For 100, that only goes up to $13. Even at $3.40/ea, they're still a great deal, but if anyone wants in on the order, that will bring the shipping costs per bulb down.

SpiralScouts

SpiralScouts ( current production website: http://www.spiralscouts.org ; new rough work-in-progress website: http://test.spiralscouts.org ) started out as the youth group for a Wiccan church in Washington State, but has grown into a full scouting-type organization that is co-ed, and open to people of all faiths. They're running a couple fund-raisers. Help 'em out if you're so inclined.

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melstav

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