Build A Sandblasting Rig For $6

Let’s get something out of the way: yes, this assumes you already own or have access to a compressor. So if you do, and know what you’re getting into, why not build a cheap sandblasting rig? That’s what [adamf135] did after seeing someone do it on YouTube. He seriously doubted it would work, but the results are pretty impressive.

This one doesn’t require much more than an empty 20oz bottle, a cheap air gun/nozzle, and an adapter. The hardest part of this hack seems to be cutting a groove in the nozzle for the blasting material without severing it completely. [Adam] cut a 1/2″ section out of his, but that large of an opening really uses up the blasting material. He recommends going smaller. After snipping off the sealing ring, he runs the nozzle through a 3/16″ hole drilled through the strongest part of the bottle and seals it off with hot glue. Watch it power through rust and paint with crushed glass after the break.

If you do any open sandblasting like this, be sure to at least wear a mask. If you don’t want to spray fine particles all over the shop, you could build a wet media blasting cabinet instead, or go even lower-tech and build a drill-powered parts tumbler.

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Propane Tanks Transformed Into Extreme Sandblaster

The [Make It Extreme] team has been racking up the builds lately, and a lot of them are heavy with metalworking. When you’re doing that kind of work, and you put as much care into finishing your builds like they do, it’s a good idea to have access to a sandblaster. So naturally, they built a really nice one.

We’ve featured a couple of [Michalis Mavros] and team’s build recently; you’ll no doubt recall this viciously effective looking spot welder and a sketchy angle grinder cum belt sander. The sandblaster build, centered as it is around scrap propane tanks, has some lethal potential, but luckily the team displaced any remaining gas from the tanks with water before doing any cutting. The design allows for a lot of sand in the tanks, with plans to provide a recycling system for the grit, which is a nice touch. And it works great – they even used it to clean it up before final finishing in the trademark [Make It Extreme] green and black paint job.

What we really like about the video, though, is that it’s a high-speed lesson on metalworking techniques. There’s a ton to learn here about all the little tricks needed to bring a large-scale metalworking project to fruition. It also demonstrates that we really, truly need a plasma cutter and a metalworking lathe.

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