Most hobbyists don’t have waterjets in their garage, but they would if they could! A Waterjet (or Water Jet Cutter) is a marvelous tool. Simply mount a high-pressure stream of grit and water on an x-y gantry, and the pressure generates enough erosion to cut through just about any thin material. Unfortunately, claiming your own waterjet will erode away a nice big hole in your pocketbook too. Machines up to this point start at about $75K, not to mention that they’d claim the better part of your workspace in a two-car garage.
Most of us everyday hackers that want to play with the benefits of this tool send their parts out to a professional shop. Consequently, we don’t often hear about everyday hackers using waterjets, or waterjet-cut parts all that often, with one exception. Back in 2014, a crew of students from UPENN built a functional waterjet with a parts-list that could make it affordable for about $5000. Now that same team is back. This time, they’ve spun together not just a one-off, but a fully-featured product called Wazer, which just launched its Kickstarter campaign minutes ago and has already nearly quadrupled the $100k goal. How could it do that? The full package starts at modest $3599-$4499. This is crowd-funding, after all, but a 20x undercutting of price is a powerful motivator.
Continue reading “Wazer: The Waterjet For Your Garage”
Waterjet cutters are generally huge machines, with equally large price tags. But what if there was a hobbyist level waterjet cutter that was actually affordable? Well, for their Senior Design Project at the University of Pennsylvania, [Adam Libert] and his team made one that could retail for less than $5000.
[Adam] was the lead mechanical designer on this amazing project, and he designed the fully waterproof XY gantry, capable of withstanding the water and abrasive from the cutter. The entire machine is only 2′ x 2′ by about 5′ tall, making it extremely portable and easy to move through doorways — and it runs off of plain old 120VAC and shop air. It is capable of cutting through up to 1/4″ aluminum and 1/8″ steel with a working area of 12″ x 14″ at a tolerance of 0.005″.
Not surprising, the project won the Mechanical Engineering Senior Design competition in 2012 with accolades for outstanding creativity. We weren’t able to find any information on the future plans for this project, but we hope they make it open-source, or even run a crowd-funding campaign for it.
The goal was to create the first ever low-cost, small scale, and easy to use waterjet cutter, and judging by the video, it looks like they did it — stick around after the break to see for yourself.
Continue reading “Hydro: The Low Cost Waterjet Cutter”