Quote:
Originally posted by morphling1
I allready made similar block with Al, and I'm also going to make this one without the pins, as for casting I might get someone to do it for me and if we work everything out maybe there will be this kind of block out for sale and I'm talking cheap here, 30$-40$.
So prepare to want one 
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How would you get it so cheap per block? I got quotes for one of my blocks and it was not nearly that cheap unless I had them make a couple
thousand at a time. And then you would still have to mill it to touch it up. The pots they use are huge, so they really don't like doing small quantities, and all the electricity to do it costs a fortune.
If you have a friend with a small smelter that only does a small number at a time then that maybe the ticket!!! My engineer budy was thinking about building his own smelter as he used one at the school he went to make all kinds of stuff, and now that the job he is at now has all the big CNC equipment he could design and make the molds. But it just isn't practical enough he says. Copper melting point is 1981F or 1083C which takes a lot of power. Aluminum melting point is ALOT better at 1220F or 660C!!!