Here industrial designer Eric Strebel shows you how to build your own spray booth out of foamcore. "The unit is very light, that makes it easier to build and potentially move around your shop if you don't have a permanent home for it," Strebel writes. He uses a nifty trick of inducing a slight bend into the material, which provides the strength necessary to support the heavy fan. And though working off of plans from Ventworks, he modifies them with the ergonomic improvement of side- (rather than top-) loading filters. LED strip lights finish it up, ensuring you can see if you're getting even coverage. Take a look:
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Spray booths are expensive because they use spark-containing hazloc switches and windings for reasons that should be painfully obvious to anyone who's ever seen a concentrated cloud of highly-combustible particulates spontaneously ignite. Extra thumbs up for using a substrate that'll turn to literal napalm in microseconds on top of everything else.
I gotta say having also built a unit based on the ventworks example, the filter is actually a sort of front loading affair that is super easy to swap. My take on it at least is.
I actually built is over the X-mass holidays, but was way to busy with my project to post at that time. Post a pic of your unit for us to see. What material did you make yours out of? Cheers
Eric is also a regular commenter on this site, no?