Only if you've already got all the equipment needed, and a ready supply of scrap aluminum for free or near free.
If you think you are getting into it to be self sufficient, ask how many times are you really going to make something? Sand casting isnt super hard or anything. but modelling and finishing arent a breeze either.
Do you have furnace and all the equipment to to make the items you think you'll be making? If not thats a serious up front cost.
Good points. Someone's gotta have the apparatus, might as well be me?
They arent super hard to build, just pricey. Kale wool and refractory cement to make anything in a truely useful size is going to cost a few pennies.
A good bet would be to scavenge copper, melt and sell as a way to fund the operation. All of your neighbors throw out things with copper wound motors in them, lots of copper to be had if you dont mind doing the melt. The shit they coat the copper with comes off as slag in the pot.
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