Modular system for plant grow lights.

Each vertical post is 10cm.

The light grip is designed to work with these grow lights available on Amazon: https://www.amazon.com/FoxGarden-Spectrum-Indoor-Dimmable-Brightness/dp/B09JGPVPP9/

The shelf grip is designed to work with these floating shelves, also available on Amazon: https://www.amazon.com/YGEOMER-Floating-Carbonized-Multifunctional-Wall-Mounted/dp/B08NSFV92Z/

These links aren't sponsored or anything, just what I used.

Prusa

i3 MK3

Doesn't Matter

Yes

Print the posts on their long, flat side.

Print the light grip with the 'head' on the build plate and the 'post' facing up.

Print the shelf grip with the flat side of the 'post' facing the build plate.