The goal was to get better air in my print room and i came up with this modular stackeble thing.

Only the base need supports on some overhangs

The hepa module: you may need to cut a tab to get fancables throu (marked in pic)

Printed

0.2 layer

15-20% infill

3-4 walls

4-5 bottom/top

For assembly:

m3 screws

glue for the legs

120mm fan/fans

powersource

power switch

carbon pellets

hepa filter cloth

I used these:

https://www.kjell.com/se/produkter/el-verktyg/el-produkter/svagstrom/dc-kontakter/terminalblock-med-dc-hona-55x21-mm-p39984

https://www.kjell.com/se/produkter/el-verktyg/elektronik/elektromekanik/strombrytare-for-elektronik/vaggomkopplare/strombrytare-1-pol-onoff-p36117

https://www.kjell.com/se/produkter/el-verktyg/natadaptrar-nataggregat/acdc-natadaptrar/stallbar-utspanning/luxorparts-stallbar-natadapter-3-12-v-dc-36-w-p45176