3 ms·
Depends on the level of accuracy you want. There will be imperfections in the surface from the castings derived from the ice based flat surface. This method ca
by ethanwillis 6y ago
Depends on the level of accuracy you want. There will be imperfections in the surface from the castings derived from the ice based flat surface.
This method can take you to much more flat surfaces from first principles. Also there will be imperfections in the ice based surface itself too.
Because you could also just pour molten metal into a mold and let it cool to get an initial "flat surface" but there are limits to that.
- donavanm 6y ago>Because you could also just pour molten metal into a mold and let it cool to get an initial "flat surface" but there are limits to that. I dont know what metal would work for that. There's still significant surface tension in an open pour. I was casting some copper a few weeks back. A ~2CM piece had about ~3mm of surface curvature to it. Plus plenty of distortion from unequal cooling where it varied thickness as well.
- adrianN 6y agoI don't know much about metallurgy, but perhaps sufficiently slow cooling would have the desired effect.