You should have the following parts to hand.

• • 4x enclosure side panels

  • 1x base panel

  • 1x lid panel

  • 3x magnetic window panels

  • 1x magnetic grill/vent panel

  • 12x filament pieces

Lay out all of the frame panels so they are interlocked. The magnet hole should be at the top, and the hole should be visible to you.

Insert a piece of filament in the top and bottom of each frame piece joint. You may need to twist the filament if it is a  little tight.

Roll up the panels so they form a box.

In the new joint, add 2 more filament pieces in the top and bottom holes.

The base will only attach one way up, with eth feet pointing out, but any way round, so place the box onto it and press the base into place. The fit should be snug.

Filament will only go in one side of each foot, so work your way around and insert a piece in each hole.

The lid fits a little bit looser on top.

You have several options for inserting filament into the lid. 

• • You can leave it as a press fit, so you can get inside from the top easily. 

  • You can add filament pieces in the back so you have a hinged lid. (You can add a piece of filament in the front as a lock (don't press it all the way in, though).

  • You can add filament in the front as well and lock the lid in place. The only way in now will be through the glass or vent panels.

Finally, you can add the windows and vents. The panels have a lip at the bottom that needs to go into the holes in the frame first.

Push the panel into place and repeal for the other panels.

Simples.