3D Printed Rings

[spaceman]

I've been playing lately with modeling and 3D printing jewelry. I am not usually wearing rings, but it seems I enjoy designing them...
Ring 1
Ring 2
Ring 3

(I don't know why adding attachments doesn't work)

inel grasshopper.jpg
Programs: Rhino & Grashopper
Printer used: Form1+ and Form 2


I also decided to add two of the rings for Myminifactory contest so they can be downloaded from here:

https://www.myminifactory.com/users/car3less

Have you made any rings from castings that you printed with the printer.
I think there are some people making cast to make molds for making metal rings.

[spaceman]

Have you made any rings from castings that you printed with the printer.
I think there are some people making cast to make molds for making metal rings.

How do you get the metal ring out of the 3d printed model. Do you make a mold from the 3d printing and then pour into
that mold. Ive seen people mill on cnc cast but not on 3d printer.

[awerby]

How do you get the metal ring out of the 3d printed model. Do you make a mold from the 3d printing and then pour into
that mold. Ive seen people mill on cnc cast but not on 3d printer.

She's printing the ring as a positive model, not a mold. (No, you can't pour hot metal into a plastic mold.) But using a version of the very old lost-wax process, she can pour a plaster-silica material all around the model, bake it in a kiln until the plastic vaporizes, and fill the resulting cavity with metal.

[spaceman]

Sounds cool. Interesting. I have seen people make a sand mold for clay potery.

Do you have pictures of the steps used to make things this way.
I might want to give it a try sometime

Thankyou