Is there a material you guys would suggest using on a weaker CNC to

General CNC CNC Routers
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1

Is there a material you guys would suggest using on a weaker CNC to make molds for metal or glass?

2

lost wax?
However engineering wax is not cheap and cheap wax difficult because the half melted shavings stick to everything.

3

Can a CNC work porcelain for example?

4

I think it would break like glass.
Engraving it may work.

5

Marcus, I meant the glass or metal would be poured into the mold I would make.

6

So a directly machined mold…no idea.

7

Quote: “using on a weaker CNC”

8

Have a look at glass moulding plaster, I think it has silica in it. I’ve never tried to machine it when dry. Cuttlefish bone is also used for casting metal and glass and is machinable.

9

http://www.traditionaloven.com/articles/81/insulating-fire-bricks

10

Also, you aught to be able to cut fired porcelain with the right bit/plunge rate/speed/rpm/dust removal, etc… It’s probably not what you want to do though. When it’s all said and done, lost wax will probably be your best bet. If you’re looking for a more easily repeatable method, you might consider cutting a plastic or aluminum mold that you use to your pour your lost wax molds.

11

Thanks, John Grant. The bricks are actually sort of what I was thinking of. I do not think my molds will be too complicated.