This was a project I built several years ago. I’ve got a small shop (a two car garage) that houses both my woodshop and metal shop. It’s about 2/3 woodshop, 1/3 metal shop. The metal side is mostly focused around a small mill and lathe, and then a couple welders and a fabrication table, a chop saw, belt grinder, that sort of stuff. I don’t have much room to spare, but I was having a hard time getting any sort of a reliable, durable finish on my metal projects. Some research lead me down a couple paths, the one most appropriate to most of the type of work I do seemed to be powder coating. Unfortunately, powder coating also takes up the most room…
I already had the blasting cabinet and figured I could nestle a Craigslist oven underneath it pretty easily, which would at least give me about 22” of project width….more if the project was narrow and could be set at an angle. Having never really done any this, I was winging it anyway so I figured what the hell? Given the fixed size of the oven, I figured a small spray tent would be adequate to contain the overspray. I designed the cart with a fold down wing that the tent can set on, with just enough room for a box fan and a filter behind it. I knew I was going to need some storage as well, so that was designed in. The Eastwood powder coat gun system is compact and has done everything I’ve asked it to do. Fit the bill perfectly for this build so I planned out spacing just for it. When I laid out the cart, I knew things were going to be ‘snug’ but I wanted to be able to use the bottom dump on the blasting cabinet, so I contoured a chute into the top of the cart that leads to the back so I can change media without too much of a gigantic hassle. I wouldn’t say it’s ‘simple’ but it’s not that bad in practice…much better than if I hadn’t built the chute!! I used expanded metal in some areas to keep it light and aid in cleanup. Heavy duty castors to keep it mobile. Basic sheet metal skin over the angle iron frame.
The blasting cabinet and powder gun were going to need an air supply, and I use compressed air to clean up as well, so I built a small manifold on the back of the cart. This way I just plug an airline from the compressor in and the whole cart is hot. Each outlet has its own cheap regulator to make things easy. The oven is 240v, but it’s smaller so it’s only rated to 40A I think. I was going to need power for some LED lights, the powder gun, the exhaust fan and a bucket head vacuum that I use to keep the air clear(er) inside the blasting cabinet during use. I don’t use all of this at once, so I got a heavy duty 240v extension cord and pulled power for the ancillary items off one of the legs. I’ve got an open 50A outlet nearby that supplies the whole cart when in use. Keeps all the cords compact and all the tools plugged in, so there’s very little setup for use. One ‘plug’ and the whole thing is hot.
Set up for use is pretty straight forward: Fold out the wing (it’s got magnetic keepers on the drop down, extendable legs), set up the tent and fan. Plug in Power, plug in Air. Set out the bucket head vac under the wing and run a vac line back to the rear of the blasting cabinet (the bucket head, buckets and hose live inside the blasting cabinet when not in use). I have a long length of grounding cable that I spool out to a ground rod I buried in front of the shop (I wasn’t getting great results until I started using this dedicated ground for spraying…night and day difference for me). And that’s it. Set up takes about 5 minutes, break dow and clean up takes maybe 20 minutes, but I clean up completely after each use. It’s simple enough that I don’t mind setting it up for one or two small brackets as part of a project, and the results are just so much better than the other alternatives I tried. Works for me!
The joke is, I had to spray the cart out with enamel because I didn’t have an oven big enough to bake it 🤣