SonicMax Slice 10 Is a Cordless Ultrasonic Cutter for 3D Prints

Why Ultrasonic Cutting Matters for 3D Prints

Removing supports from delicate PLA models or trimming resin parts usually means reaching for flush cutters, a hobby knife, or a rotary tool. Each works, but none is ideal. Flush cutters struggle in tight corners. Knives require force and can slip. Rotary tools are noisy and risky near fine details.

SonicMax designed the Slice 10 to fill that gap. It is a cordless ultrasonic cutter that vibrates a blade at 40kHz while you hold it. The vibrations reduce cutting resistance, so you can slice through PLA supports, PETG raft edges, and foam without pressing hard.

The Heat Problem Is Real

Most cordless ultrasonic cutters overheat during extended use. The internal transducer generates heat under load. After twenty minutes of continuous cutting, many tools shut down to protect themselves. SonicMax says conventional cutters use transducers with a Q factor around 150 to 250. The Slice 10 claims a Q factor above 500, which should move more energy into blade motion and less into waste heat.

Heat management is not just a spec-sheet argument. If you are cleaning up a large resin print with dozens of supports, you do not want to pause every few minutes for the tool to cool. Active cooling inside the Slice 10 vents heat from the transducer and blade area during operation. The OLED screen even shows fan status, so you know when it is working harder.

Three Batteries Might Be Better Than One

SonicMax gave the Slice 10 a 5,000mAh 21700 battery that you can swap out in seconds. A replaceable cell matters for long workshop sessions. When one pack drains, you load another instead of waiting for the whole tool to recharge. The company claims around seventy minutes of cutting time at maximum load, and two to four hours of mixed use at typical maker workloads. Those are manufacturer numbers, not guarantees, but they are far above the twenty minutes some competing tools manage under similar stress.

Smart Power Adjustment and Lift-to-Activate

The Slice 10 senses material resistance and adjusts output automatically. Start on thin PLA supports and move into a thicker ABS section, and the cutter changes power without you touching a button. The OLED display shows load and output level in real time.

A lift-to-activate sensor wakes the blade when you raise the tool and shuts it down when you set it down. That removes the need to toggle power every time you reposition a print or inspect your work. It also saves battery when the tool sits idle between cuts.

What It Cuts and What It Does Not

SonicMax lists PLA, PETG, ABS, resin parts, EVA foam, leather, model board, and plastic sheet as supported materials. It is not meant for metal, glass, stone, or anything harder than the blade can handle. An ultrasonic cutter reduces cutting effort, but it does not turn a small handheld tool into an industrial saw.

For 3D printing specifically, the best uses are support removal, resin cleanup, and light post-processing on prototypes. The controlled vibration helps when you are trimming close to a finished surface. One slip with a craft knife can ruin a twenty-hour print. A blade that cuts with less physical pressure is easier to control.

Price and Availability

The Slice 10 is planned for Kickstarter on July 28th, 2026. Super Early Bird pricing starts at ninety-nine dollars for the first two hundred units, with Early Bird at one hundred nineteen dollars for the next four hundred. The planned retail price is two hundred fifteen dollars. SonicMax is taking one-dollar reservations for a priority notification list, but that does not guarantee access to discounted tiers.

This is not an impulse buy. Wait for independent reviews and real-world durability tests before spending. If the heat and battery claims hold up, the Slice 10 could become a standard post-processing tool for makers who regularly print detailed models with tight supports.