basic shapes structures

Are all the basic shapes listed (i.e. pyramid, cube, cone, etc) solid objects or walled and hollow ? If i use a second shape configured as a hole to cut through the body of say a cone will I find a remaining solid surrounding that hole or will I find walls ("outer wall"-"inner wall"-hole- "inner wall"-"outer wall" or "outer wall" -hole-"outer wall") ?

 

In Tinkercad, all basic shapes (like pyramids, cubes, and cones) are solid by default. If you use a second shape as a hole and group it with a solid shape (e.g., a cone), the software will subtract the hole from the solid, leaving an empty space.

You won’t find an "inner wall" unless you manually design a double-walled structure. The result will be a single outer shell with the cutout applied directly. So, the structure will be:

"Outer wall" - hole - "outer wall"

If you need a hollow object with inner and outer walls, you would have to create it manually by designing two separate shapes and subtracting the inner one from the outer. Hope this helps!