
2 In 1 Cordless Powerful Ultrasonic Cutter for Handworkers
True 40kHz, Precision Cutting& Grinding, Start-Stop, Fan Cooling, Replace Battery, Multiple Blade, Light, Dual Mode, 3D Printing, DIYer Pledge HereDreamseed on Kickstarter
- In the past, our focus has been on design, production, and wholesale sales. But we realized that we neglected the importance of direct communication with our users to refine our products.
- In the present, we recognize that retail offers an incredible opportunity to connect more closely with our customers and gather invaluable feedback. As we continue to develop our precision DIY tools, we are grateful for the support of all our backers.
Feedback from Previous Project
- The number of Shipped Parcels for all orders is now over 96.16%;
- The current Signing Rate for the shipped parcels is now over 98.52%;
- For 121 backers who have not yet completed the Backer Survey, we will continue to remind them via Kickstarter Message and E-mail every two to three weeks;
The Effectiveness of the Cutter
The UC01 ultrasonic cutter uses 40 kHz vibrations for smooth, continuous cuts. What issues could manual cutting cause?

During the UC01 Corded Ultrasonic Cutter campaign, some backers struggled with ultrasonic cutting, failing to complete tasks. After analyzing their videos, we identified 3 key cutting angles. This will help others master the cutter faster.
Commonly Used Cutting Angle 1

- This angle aligns the cutter’s entry direction with the ultrasonic vibrations to within 30°, maximizing cutting efficiency.
Commonly Used Cutting Angle 2

- At this angle, the cutter’s ultrasonic vibrations hit the material surface at ~60°, significantly reducing cutting power. For dense materials like PCBs, cuts may fail or require heavy pressure.
Commonly Used Cutting Angle 3

- At this ≥90° angle, the cutter’s vibrations strike the material surface obliquely, drastically reducing cutting power. Softer materials like ABS may resist cutting or require heavy force. Slow cutting speed also prolongs blade contact, causing heat buildup and significant melting at the cut edge.
Cutting Failures from Incorrect Use:
Example 1: When cutting with the blade tip, apply downward pressure. Without pressure, contact alone won’t activate proper resonance for cutting.

- Example shows the cutter tip can’t initiate cuts on PP boxes. But once penetration occurs, it slices cleanly through.
Example 2: Always secure material before cutting. Unfixed material vibrates away from the blade, preventing resonance needed for effective cutting.

- Example shows that cutting unfixed paper fails because vibrations prevent blade-paper resonance, halting the cut.
Example 3: When cutting soft materials with the blade tip, apply downward pressure to maintain contact. Smooth cutting only begins after tip penetration.

- Example shows that when cutting soft materials (such as rubber or silicone), insufficient pressure or failed tip penetration prevents blade-material resonance, which halts the cut.
UC01 vs. UC02: Cutting & Polishing Performance
Comparisons during the cutting process
- Cutting the PCBs

- Cutting the Plastics

Comparisons during the polishing process
- Polishing the Coins

- Polishing the Conch

Ultrasonic vs. Manual Cutting: Pros & Cons
Ultrasonic Advantages:
- ✅ Continuous Cutting: Uninterrupted workflow vs. manual stops/starts
- ✅ Material Versatility: Handles diverse materials (PCB, PLA, TPU)
- ✅ Precision Cutting: Uniform cuts with clean edges
- ✅ Cutting Speed: 3-5× faster than manual methods
- ✅ Tool efficiency: Single device replaces blades/sanders
Manual Advantages:
- ⚡ Emergency: Ready without electricity
- 💲 Tool Cost: Lower initial tool investment
2 In 1 Powerful Ultrasonic Cutter & Polisher

The Jakemy UC02 Cordless Ultrasonic Cutter delivers smooth, continuous cuts with true 40kHz vibrations. This 2-in-1 tool handles cutting, grinding, and polishing for fast, precision results. Below is a brief introduction to its Key Features:

- Three Modes: UC02 cutter is equipped with three modes: Manual, Automatic and Standby.
- Dual Purpose: As the first Kickstarter project to combine Ultrasonic Cutting and Polishing in one tool, UC02 further enhances both functions. The new Benchtop Rack expands positioning versatility for diverse tasks.
- Cooling Fan: To extend continuous runtime, we added Fan Cooling to UC02 cutter (significantly increasing cost), but retained the Fanless Version for cost-sensitive backers needing Cordless Ultrasonic Cutting.
- Replace Battery: Once the battery of your UC02 cutter unit becomes worn out, you can choose to replace it yourself to extend its life and save on costs.
- Auto Standby: In AUTO Mode, UC02 enters standby after 10 seconds of horizontal inactivity to save power. AUTO Mode can then be activated immediately once the UC02 is picked up again.
- Physical Feedback: Addressing backer feedback that UC01 operated too quietly, UC02 now provides visual (LED) and audible (buzzer ‘ding’) confirmation when the cutting process begins, alerting you that the device is in output mode.
- Safety Device: Both UC01 and UC02 feature a Safety Child Lock: the blade cover requires unlocking before use, preventing accidental harm to children and pets.
- Storage Design: Enhanced storage design fixes UC01’s rattling Hex Key issue with magnetic cover attachments and adds temporary blade slots for quick swaps.
Three Types of Operating Mode
There are 3 operating modes for the cutter settings:

Mode #1: OFF Mode
- When the Mode Button is pushed to the OFF Mode position, OFF Mode stops all cutter operation.
- In this OFF Mode, pressing the Inching Switch produces no output – preventing accidental activation and injury risk. The cutter then enters standby, after 30 seconds of inactivity, it shuts down automatically to conserve power.
Mode #2: ON Mode
- When the Mode Button is pushed to the ON Mode position, ON Mode activates manual cutting.
- In this ON Mode, hold down the Inching Switch for high-power ultrasonic output. The continuous front LED and buzzer will confirm activation by emitting a “ding” sound. Ideal for cutting shorter or softer materials.
Mode #3: AUTO Mode
- When the Mode Button is pushed to the AUTO Mode position, AUTO Mode activates automatic cutting.
- In this AUTO Mode, the LED lights on and buzzer emit a “ding” sound, it runs continuously without holding down the Inching Switch. This high-power mode excels with longer or harder materials. Such as PCBs or carbon fiber.

Understand the Indicator Light
UC02 Cutter Operating Color Light Signals

- LED Light Signal: When the cutter is in operation, the LED light at the front end will remain lit. If the LED light turns off immediately, it means that the cutter has stopped working at this time.
- In AUTO Mode, a blue light circle is displayed around the Inching Switch Button.
- In NO Mode, a green light circle is displayed around the Inching Switch Button.
- In OFF Mode, no coloured light is displayed around the Inching Switch Button.
- Cyan Light Flashing: When the on-screen temperature parameter shows that the Usable Hours Bar on the cutter is nearly depleted, a cyan light circle flashes around the Inching Switch Button. This indicates that the power should be turned off, and the cutter needs to be cooled for a period of time before it can be used again.
UC02 Charging Status Color Light Signals

- While the cutter is charging, the Inching Switch Button will display red.
- When the battery is charged up to 96%, the Inching Switch Button will turn green.
Effective Cutting of the Cutter
Cutting Angle of the Cutter
The UC02 cutter penetrates materials at multiple angles, each producing distinct cutting results.
- For strongest cutting power, angle the blade below 30° to the material. This maximizes vibration transfer for peak efficiency.
- Cutting efficiency decreases noticeably when blade angles exceed 90° due to reduced vibration transfer.
- Blade angles over 150° drastically reduce cutting efficiency due to misaligned vibrations. This renders cutting ineffective and should be avoided.

💡 Pro Tip:
- For hard materials, start at 0° for penetration, then adjust to 10° to 45° for faster cutting.
- For soft materials, start at 45° for penetration, then adjust to 30° to 60° for faster cutting.
- For thin materials, start at 60° for penetration, then adjust to 45° to 90° for faster cutting.
Cutting Effect of the Cutter
Why was he able to cut the same material successfully, while I failed? These two contrasting scenarios explain why the cutting operation failed.

- The Principle of Effective Cutting: The cutter’s cutting ability comes from high-frequency vibrations. For the cutting process to be successful, the material to be cut must be firmly fixed and not undergo significant volume deformation. The sharp edges of the cutting blade primarily serve to enable more effective penetration of the material being cut, creating a smoother cut and increasing the cutting speed.
Cutting Experience of the Cutter
The cutting experiences and sharing from multiple backers.

- Master Cutting Angles for Optimal Results: Different materials require specific blade angles to achieve fast, clean cuts. Conduct test cuts on scrap material to determine the ideal angle before final work – this practice builds technique efficiency.
- Cut Failure on Certain Hard Materials: When using a cutter operating at a high frequency vibration to cut hard materials such as wood or PCBs, it is possible that the cutting edge of the blade may suffer undetectable damage. Please replace the blade in time when using cutter again.

- Optimizing Cutting Force to the Hand: If you find that the cutter is ineffective or does not achieve the desired result when cutting regular materials, please note that the cutter needs to continuously penetrate the material being cut to maintain the continuous cutting process. Therefore, you should apply a gentle force with your hand.
- Keep Replacing the Blades: If you find that you are unable to cut through hard materials, please remember to replace the blade, as it may have become blunt through repeated use. After all, blades are consumable items.
- Increase the Cutting Speed: When the cutter vibrates at a high frequency while cutting the material, the molecular movement at the contact surface of the material and blade accelerates, thereby accumulating heat and causing the plastic to melt or the wood to smoke. To alleviate this situation, you can try increasing the cutting speed to reduce the contact time, or replace the #4 blade to reduce the contact area.
- Improving the Cutting Experience: The UC01 project has many backers who are using the ultrasonic cutter for the first time. However, many backers have reported that each time they use the cutter, they will achieve even greater results. This is because when they come into contact with new tools, they can abandon their inherent experiences and preconceptions about using old tools, and adopt a mindset of learning and exploration to understand and master the use of the new tools.
Cooling System of the Cutter
Two versions of the UC02 cutter unit have been launched due to the high additional cost of adding an automatic fan to the ultrasonic cutter handle.

- UC02BH: The UC02 was synchronized with the launch of the UC01 project. The original design did not include an automatic fan for heat dissipation. Therefore, it dissipates heat through a Natural Air Cooling process. As no additional miniature fans and controller chips need to be added, the cost is relatively low.
- UC02UH: Responding to UC01 feedback where dense materials (wood/PCBs) caused rapid overheating during high-output cuts, UC02 adds optional active cooling. The Automatic Fans System eliminates thermal pauses but increases cost; the fanless model retains budget pricing for lighter use cases. Consequently, we have produced two versions of the UC02 cutter to meet the price requirements of different users.
Three Innovations of the Cutter
The Flatwise Auto Standby Mode of the Cutter
- We have innovatively incorporated a Gesture Sensing Activation System into the cordless UC02 Ultrasonic Cutter. This system effectively helps users to save the battery power of the cutter, increase its usage duration and enhance the cutting experience.
- In AUTO Mode, if the system detects that the UC02 cutter has been in a horizontal position for 10 seconds, the cutter will switch to standby mode automatically to save the battery power. Once you pick up the cutter again, the system will command the buzzer to make a “ding” sound and then immediately activate the AUTO Mode.
- To avoid disrupting the horizontal cutting or polishing process, we conducted multiple tests and statistically summarised the time required for general cutting and polishing tasks. These tasks can be completed in under 10 seconds in approximately 90% of cases.
- If you need to keep the UC02 cutter at a horizontal position for cutting or polishing for more than 10 seconds, push the Mode Button to switch to ON Mode (manual mode). The system will then be temporarily shut down. This system will therefore only enhance your experience without interfering with your daily cutting and polishing tasks.

The Auto Frequency Following System of the Cutter
- Thanks to the UC01 campaign, based on the feedback from the backers, we have found that the Automatic Frequency Following System on the UC01 cutter unit is functioning well.
- The auto frequency following system used for the UC02 cutter unit has been upgraded to make it smarter than ever. It can also conserve battery power more effectively.
- When the UC02 cutter is operating in AUTO Mode, the cutter can intelligently adjust its power output (0 to 35W, up to 40W) according to the different materials being cut.
- This pioneering design applied to the ultrasonic cutter has effectively facilitated the technological advancement of the tiny ultrasonic cutter.

The Inner Temperature Control Probe of the Cutter
- We have incorporated a Temperature Control Probe inside the handle of the UC01 cutter. This displays the internal temperature as a usable time bar on the OLED screen in real time.
- Inside the handle of the UC02 cutter, we also have incorporated a sensitive temperature control probe. This interacts with the automatic fan to better regulate the increase in temperature inside the handle, thereby extending the usable duration of the UC02 Ultrasonic Cutter for single use.
- The micro silent fan auto-activates in all modes (except OFF Mode) when internal temperature ≥50°C, running until cooling to ≤40°C. In OFF Mode, the fan stops immediately after shutdown for optimal power conservation.
Two Types of Application Scenario
The Jakemy Ultrasonic Cutter delivers dual-function versatility:

✅ Cutting Applications:
• 3D prints • Gundam models • Molds • Crafts • Woodcarving • PCBs repair • Fabrics •
✅ Grinding Applications: (need grinding stick)
• Metals • Jewelry • PCBs • Gypsum • Wood • Plastics • Conchs •
Two Types of the Holder
Physics-Driven Design: The 40kHz ultrasonic vibrations demand perfect tool-to-waveform alignment. Any gap >0.1mm causes energy loss, reducing cutting/grinding efficiency by up to 60%. Since the blade is much thinner than the grinding stick, we can only use CNC processing to customize two dedicated holders for the cutting or grinding operations of the cutter.

- The 0.4 mm pitch holder is used for cutting blade.
- The 1.15 mm pitch holder is used for grinding and polishing stick.
- ✅ Please note that each order includes 1x Cutting Blade Holder.
- ❌ Polishing Stick Holder not included (Non-cutting parts, sold separately).
Five Types of Cutting Blade
As part of the UC01 project, we developed 13 blade types. Five have been successful and are now commercially available, designed to cover nearly all daily cutting tasks. Each blade delivers distinct cutting results based on its specific design and purpose. Cutting speed also varies significantly depending on the material being processed and its properties.

Detailed Introduction to Five Types of Blades
#2 Blade – 30° Fine Point Blade

- Regular Standard Blade
- Can handle virtually all daily cutting needs.
- Smaller contact surfaces for faster, but less accurate cuts.

#3 Blade – 60° Fine Point Blade

- Regular Standard Blade
- Can handle virtually all daily cutting needs.
- Larger contact surface, slightly slower cutting speed, but higher accuracy and precision.

#4 Blade – 30° Narrow Point Blade

- Special Shaped Blade
- Ideal for carrying out cutting tasks in tight spaces or for making precise cuts.
- Recommended for removing support legs inside the holes of 3D printed works.

#5 Blade – Narrow Chisel Blade

- Special Shaped Blade
- Ideal for wood carving, removing protrusions and creating grooves.
- Recommended for wood carving or for removing burrs produced when 3D printing with materials such as PLA or ABS.

#6 Blade – Cutting Straight Blade

- Special Shaped Blade
- Ideal for large area peeling applications or for cutting off thicker materials.
- Recommended for removing dense burrs from surfaces or for shaping and trimming of moulds.

Versatile Tools – Cutting Various Materials

Four Types of Grinding Stick
Among all ultrasonic cutter projects on Kickstarter, Jakemy Ultrasonic Cutter pioneered the ultrasonic polishing function.

For the UC01 project, we developed grinding sticks in grit sizes of 200, 400, 500, 600, 800, 1000, 1200, and 1500. Testing confirmed the 400/600 grit stick excels at rough grinding, while the 800/1000 grit delivers optimal results for fine polishing.

#7 Blade – Precision Grinding Stick
- #400 and #600 Grit, they are suitable for grinding hard objects.
- Common materials such as coins, metal, shells, ceramics, jade, acrylic, plaster, circuit boards, resin, ABS, etc.
- When grinding softer surfaces such as ABS/ PLA plastics, try not to apply excessive downward pressure or you will over grind!
#8 Blade – Precision Polishing Stick
- #800 and #1000 Grit, they are suitable for polishing hard objects.
- Common materials such as coins, metal, shells, ceramics, jade, acrylic, plaster, circuit boards, resin, ABS, etc.
How to Use the Ultrasonic Cuter

- During our UC01 project, we discovered many backers were new to and unfamiliar with the handheld ultrasonic cutter.
- If you do not understand how ultrasound works or fail to carefully read the relevant content about using the ultrasonic cutter in the UC01 project update, you may conclude that the cutter cannot be powered on, does not work, does not respond, cannot cut, or has quality issues. Even worse, you might damage the ultrasonic cutter directly.
- The following “How to” content will help you get a basic understanding of how to use the ultrasonic cutter for the first time, and master the proper use of the ultrasonic cutter to assist you in your work.
How to Open the Cover of the Cutter
Learning to open the cover of the ultrasonic cutter is the first step in mastering its use. And our two-step unlocking method for the Child Lock is the first safeguard for safely using the ultrasonic cutter.

- STEP 1: Push the Child Lock button until it is in the position marked with the Unlock symbol (🔓).
- STEP 2: Turn the cover of the cutter to the along the ‘OPEN’ arrow by approximately 45°.
- STEP 3: Gently pull cover off. Please be aware of the risk of cuts, as the cutter is pre-installed with a blade for quality inspection purposes.
- STEP 4: Once you have used the cutter, put the cover back on.
- STEP 5: Turn the cover of the cutter to the along the ‘CLOSE’ arrow by approximately 45°.
- STEP 6: Push the Child Lock button until it is in the position marked with the Lock symbol (🔒).

What Would Happen? If the cover were to be forcibly removed without first unlocking the Child Lock on the cutter?

- During our UC01 campaign, three backers reported that the LED light panel had detached from the transducer and remained inside the cutter’s cover.
- The final step in the product quality inspection process is to pre-install the blades for trial cutting. Theoretically, the LED light panel is connected to the protective lid of the transducer via plastic snap fasteners. The panel will only become detached or damaged if subjected to external pulling forces.
- When the light panel cover of the cutter is detached, two LED light power cable will be exposed. If you power on the cutter before insulating these two wires, they may cause the two wires to come into contact, resulting in a circuit short circuit and causing the cutter to smoke and get damaged.
- We offered free product re-delivery as part of our after-sales service in response to this situation.

How to Replace the Cutting Blade of the Cutter
After cutting operations, high-frequency vibration causes microscopic degradation along the blade edge – invisible to the naked eye but critical to performance.

These appear as difficulty cutting or uneven cuts – replace blades immediately. Always handle and dispose used blades carefully.

- STEP 1: Use your fingers to pry open the golden cover plate on the cutter cover.
- STEP 2: Take down the Hex Key and turn the screw of the cutter counterclockwise by about 1/2 to 3/4 of a turn.
- STEP 3: Replace the old blade with a new one. Avoid removing the blade holder and Allen screws from the cutter, as they may fall off and get lost.
- STEP 4: Make sure the new blade is fully inserted into the blade holder, and then gently tighten the Allen screw clockwise.
- STEP 5: Put the Hex Key back into the cover of the cutter and close the cover plate tightly.
How to Replace the Grinding Stick of the Cutter
To use the grinding/polishing function:
- Install the grinding stick + dedicated holder
- Use the same process as blade replacement
- Critical: The holder must have 1.15mm pitch
Here is a video demonstrating how to do this:

What Should Be Noted? Several issues need to be noted before converting the ultrasonic cutter to perform an ultrasonic grinding function.
- Grinding or polishing sticks will wear out quickly if used on rough surfaces or hard materials, such as metals.
- If you have ordered the grinding or polishing stick set, please ensure you have also ordered the Polishing Stick Holder separately, or ordered a grinding or polishing stick kit which includes the holder.
How to Replace the LiPo Battery of the Cutter

⚡ Power & Charging
- Input Power: DC 15V=2A
- Output Voltage: DC 11.3V to 12.0V
- Output Current: DC 0.6A to 3.0A (Up to 3.5A)
- Charging Time: About 65 min (10% to 90%)
- Charging Method: Via the Type-C port cable
🔋 Battery Performance

- Cell Capacity: 1000 mAh
- Standby Time: 8 to 13 months
- Working Time: 45 to 60 min (Cutting wood at full power)
- Maintenance Tip: Recharge every 7-12 months during storage
Follow the video instructions below to replace the Spare LiPo Battery when necessary.

Order spare battery now to avoid future hassles!
Standalone LiPo Batteries are subject to complex regulations, causing:
- ✈️ Transport restrictions
- 📦 High shipping fees (2-3× current rates)
- ⏳ Delivery delays
How to Master Ultrasonic Polishing

- For first-time users: We recommend practicing on rusty pliers before working on your actual project. Once you can remove a small area of rust successfully, you’ve got the basic operation mastered.
- For experienced users: Test the tool on a sample piece of the material you plan to grind, to ensure there are no issues before starting your main workpiece.
- For hard materials (e.g., metal), it is recommended to use the forward-push polishing stick method.
- For soft materials (e.g., ABS), it is recommended to use the backward-pull polishing stick method. Avoid pressing down too hard—this can cause excessive grinding.
- Pet safety: The handheld ultrasonic tool operates at 40 kHz. Keep it at least 5 meters away from pets such as cats, as the sound frequency can cause them to become restless or agitated.
How to Polish Wooden Materials

- When grinding wooden materials, hold the ultrasonic cutter as you would a pen, and gently push the ultrasonic grinding stick forward.
- If the effect is not obvious, apply a light downward pressure for better results—just be careful not to press too hard to avoid damaging the material.
How to Polish PCBs Materials

- When polishing PCBs surfaces, keep your hand steady and apply a downward pressure. Move the polishing stick quickly forward and backward over the areas that require polishing.
- When the metal parts of the PCBs begin to become exposed, move to a different area and repeat the process.
- After all required areas have been ground, complete the cleaning and shaping by pulling the polishing stick backward.
How to Polish Conch Materials

- If the material is brittle, pre-fill it with easily removable substances such as play sand to help reinforce the structure.
- During polishing, avoid applying excessive hand pressure, as the high-frequency vibrations may cause the conch to crack or break.
How to Polish Coin Materials

- Secure coins with a fixture to make grinding and polishing easier and safer.
The operation method is the same as for PCBs. - Avoid holding coins by hand during ultrasonic polishing, as they can quickly become hot. Holding them may also cause the polishing stick to slip and strike your nails, leading to injury.
How to Polish ABS or PLA Materials

- When processing ABS or PLA materials, the tool’s 40 kHz ultrasonic vibration intensifies molecular friction. To prevent heat buildup and melting, limit contact time between the grinding stick and material.
- High-frequency vibration generates heat that softens plastic during cutting or grinding. To prevent deformation or scorching, apply only light pressure – avoid downward force.
How to Deal with the Situation of Plastic Melting?

To minimize heat buildup when cutting plastic:

- Use Special Shaped Blades: Replace regular blades with narrower-profile Special Shaped Blades to reduce contact area.
- Apply Steady Pressure: Maintain consistent hand pressure to increase cutting speed and reduce contact time.
- Lower Power Settings: Switch from AUTO/HIGH to ON/LOW mode to reduce output current.
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