Needed some cones for drone pilot training, found the original of these by jirmi, https://www.thingiverse.com/thing:4642368.

Modified the small cones by adding a ridge around the upper base walls to allow the cones to stack correctly.

Designed from scratch a case to hold four of the cones.

Cones printed perfectly as did the case lid, the case however printed a little rough, this is due to my attempt to save material and created recesses in the internal walls, as a result the infill in these areas is clearly visible.

I have included the Fusion 360 files for anyone to modify as required.