I used a lamp fitting with the sizes that you can find on one of the photos. Everything is printed in PLA. Assemble as follows. Set part 2 to part 1. Place the 2 walls (part 3) next to each other and click / slide part 4 over them. Now bend the outsides to each other and click / slide part 4 over the other side. The walls now form, something that looks like a cylinder. Slide on the bottom of this cylinder part 5. This is now the bottom of the lampshade. slide part 6 at the top of the cylinder. Now insert your lamp socket with cord in part 2 (mounted on part 1), making sure that the cord comes out along the side of part 1. Now place the mounted lampshade on the protruding part of the lamp fitting. Finally, place the lid (part 7) on the lamp Ready. If you use a LED lamp you will not get any shadows from your pattern on the wall. if you want this, use a filament lamp. Do not use a (old)light bulb, these become too hot so the whole thing melts back. Attached are also an empty wall and an empty lid. this is if you wanted to create a pattern yourself.