Metal Casting 3d Printed Planetary Gearbox Part 2

There's a reason why gears aren't made of aluminium. Aluminium on aluminium has really high friction and will eat itself up way faster than other materials. Especially at the speeds this gearbox design was running in the original 3d printed version.
Tooth shape is another big factor in friction, and i don't see how you're getting the shapes correctly if you have to grind off casting artefacts.
It's really cool to look at, but it will wear out quicker than the printed version due to these effects.

I've been doing some lost PLA casting with about the same method. I've been putting my molds in a metal bucket and pouring sand around to keep them from blowing out, on one that had a crack to the outside I wrapped it in aluminum foil before packing it in sand.

I am copying your process exactly. Thanks. Keep us updated.

I would love to see you slush cast an object using wax, and then cast it in aluminum. I wonder which material would make the best core?

Have you thought of using a vacuum to de-gas the plaster prepour and after?

is it only propane and a blower that you use to melt the aluminum?, do you put some aditives to it?

Put another mold on the barbie shall we!?

Success nice glad this part worked out for ya (just a little advice I had to work on this myself umm ahhh umm ahh 😉 )

FIRST!