Simplest 3d printer enclosure without any tools

I was looking for an enclosure for my Anycubic i3 Mega printer so I could print large PETG parts without them unsticking from bed. I looked at other projects which are way to complicated and/or require more expensive materials. No need for fans with 2-3mm spacings along edges.

The case I came up with I as simple as it gets with no tools needed and no cutting needed. You just need 5 pieces of material with 3mm thickness.

I went with four 50x50cm plywood panels with one transparent acrylic sheet 50x50cm.