Quad Brian Johnston made sandblasting and spraypainting possible with this gizmo.
“After some thinking and trial and error, I cut a flat piece of 1-inch steel with the torch, drilled a hole in it and ran a threaded metal rod through the hole to hit the sprayer button. I bent the piece of steel a couple times — once so I could clamp it to the can and another for the trigger mechanism. Then I bent the threaded rod, welded a washer to it and put a spring between two nuts on the metal rod to the trigger. I attached it to a spray can with a hose clamp. Then I could use my hand brace and spray.”
Got all that? Me neither. Once you see a photo or two of the final product, it all begins to make sense.
“It works for anything that sprays — paint, WD-40, bug spray, air freshener, you name it,” he says. He even made one for a fire extinguisher.
Nothing stops this guy. When he tired of repairing his hand brace, he simply made a replacement built to last.
The Ultimate DIY Power Assist
Johnston’s pièce de résistance is his DYI power assist. “I used E-Motion wheels for years, but they’re really heavy and I wanted to rest my arms more. I didn’t have $6,000 or $7,000 for a SmartDrive. A buddy who works for a trash collection outfit said he came across motorized Razor scooters from time to time, and he got me one. It was in pristine condition,” he recalls.
“I designed a mount and figured out a way to connect the motor to the wheel. I used a simple knob — like the volume on a stereo or a wall dimmer switch — to control the speed. The scooter was 24-volt, but when I tried it on my chair, I could go 15 mph. I don’t need to go that fast, so I rewired it for 12 volts. Now the batteries should last twice as long, and they let me get up to about 8 mph.”