Is this magic?

or is it just math?

it's up to you :-)

These are 2 cones joined together and a frame on which they roll

When the double cone is placed at the lower end of the frame, it starts to roll upward, giving the impression of defying gravity. This is because as the cones moves up, the increasing width of the frame lowers their centre of gravity

Printing :

The profile is default + 2 params :

• brim-object gap is set to 0 (for the cones to stick, the brim is auto)
• print sequence is set to "by object" to gain time if printed in 2 colors

The frame is printed upside down, no support needed

Enjoy :)