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The 369Sonic Ultrasonic Cutter 45 W is a cordless, battery-powered ultrasonic cutter that vibrates its blade at 40,000 movements per second to slice through materials that resist a plain knife. It is aimed at modelers, makers and light fabrication work, cutting ABS, PLA, resin, acrylic, carbon fiber, MDF, plywood, PVC, leather, rubber and PCB. Its main edge over corded ultrasonic cutters is the absence of a cable, and over a hobby knife it is the micro-vibration that lets the blade penetrate with less hand force. The trade-offs are that it is a niche tool with a battery to manage, and it is not a substitute for a saw or laser on thick, hard stock.
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The 369Sonic Ultrasonic Cutter is a cordless, battery-powered cutter that vibrates its blade at ultrasonic speed, about 40,000 movements per second. These fine micro movements let the blade pass through many materials with less effort. It is a newer generation of the model, smaller and lighter, with the same cutting performance as before.
Everything is built into the handle, so no cable gets in the way. The battery snaps in and can be swapped for a new one. The cutter takes several types of interchangeable mini blades, each made for a different application. The ultrasonic transducer is titanium and the blades are stainless steel. The design is inspired by the Japanese katana.
A built-in processor controls the transducer and keeps adjusting the frequency. Sensors protect against overload and tipping. Blade guards and multiple safety locks are included. Over Bluetooth, the 369Sonic app shows the cutter's frequency, battery voltage, internal temperature and performance. You can also change the frequency and raise the performance by hand.
