Compact and foldable camera tripod

Based on the Kernel770 design, I thought to myself why not include a roll correction feature so that you can put your camera on a non horizontal surface ? And also some room inside the design to carry the bolt with it (and not lose it) ?

So here's the result. It's very compact when folded (150 * 46 * 22 mm). You can set the roll so that the camera is perfectly horizontal when shooting. I managed to print a bolt that fits between the legs when tripod is folded. Max diameter of the knob is 20 mm, don't know if it's easily found, that's why I included the bolt file.

Bonus : I found that the camera can slip on the surface of the mount, so I designed a sole (don't know if that's the right word) specially for my camera Nikon D7100 and glued it on the mount. It fits perfectly under the camera and holds it straight. Sole file is also included.