After finding a very complicated but comprehensive article (https://www.modelersite.com/Abr2003/english/Spray-booth-design_Eng.htm) about calculating airflow and static pressure, the fan I have just isn't going to cut it, so I've ordered one twice as powerful in the hope that'll do the trick without now being super noisy (it claims not to be).

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The good news: I managed to pre-drill some squares cut out of a 3D-printed paint rack, glue them to the underside of the screw hole and they held well enough to re-screw the vent down.

Also good news: the lights still work!

Less good news: almost no noticeable difference in suction from the inline fan.

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After all this, I really hope it works or I’ve just ruined a decent spray booth.

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After taking it all apart, the wires had to be cut as they’re soldered in.

Then I had to get something to cap the wires off.

Then I realised the outlet hood was screwed to the fans themselves and there’s nothing to screw it back onto anymore.

Now it’s night, the shops are shut and I can’t find anything in the house to help me fix it back on.

Lunchtime trip to B&Q/ToolStation tomorrow I guess…

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