Product name: JLCPCB Wireless Bluetooth Mouse

Teardown process

Part teardown

1. Anti-slip mouse skates

Material: Polytetrafluoroethylene (PTFE)/Teflon plastic
Function: Allows the mouse to glide smoothly with minimal friction on surfaces, keeps the mouse elevated from the surface.
Manufacturing techniques: High-precision die-cutting, CNC milling or solid machining.

2. Manufacturing sticker

Material: BOPP (Biaxially-Oriented Polypropylene) plastic
Function: To help provide key information about the product.
Manufacturing techniques: Heating and stretching molten polypropylene in two directions, followed by a surface flame treatment. Text printed using methods like flexography or rotogravure, adhesive application and cutting material into rolls.

3. Anti-slip mouse skates

Material: Polytetrafluoroethylene (PTFE)/Teflon plastic
Function: Allows the mouse to glide smoothly on surfaces, keeps the mouse elevated from the surface, and minimizes friction created between the surfaces.
Manufacturing techniques: High-precision die-cutting, CNC milling or solid machining.

4. Mouse shell top

Material: ABS (Acrylonitrile Butadiene Styrene) plastic
Function: Provides protection, ergonomics, and structural support for the internal components.
Manufacturing techniques: Injection molding. The logo is then printed on shell using methods of pad printing or UV printing.

5. USB-C adapter port

Material: Nickel coated shell, Polyamide plastic housing
Function: Allows for charging the internal battery or connecting the mouse via a USB-C receiver/dongle.
Manufacturing techniques: Stamping and plating of shell, injection molding of the plastic housing.

6. USB-A receiver housing shell

Material: ABS (Acrylonitrile Butadiene Styrene) plastic
Function: Helps connect the mouse to the computer by converting radio frequency signals into signals that can be understood by the computer.
Manufacturing techniques: Injection molding.

7. USB-A receiver housing cap

Material: ABS (Acrylonitrile Butadiene Styrene) plastic
Function: Helps enclose the components of the receiver within the housing.
Manufacturing techniques: Injection molding.

8. USB-A receiver EMI/EMF shielding

Material: Aluminum
Function: Prevents external interference from entering and prevents internal noise from escaping.
Manufacturing techniques: Stamping of metal sheet.

9. USB-A System on a Chip (SoC)

Material: Silicon, aluminum and copper
Function: Creating a single integrated circuit to help transmit and receive data that allows the mouse to function.
Manufacturing techniques: Wafer production, photolithography, etching, ion implantation, deposition, planarization, and metallization.

10. Mouse shell middle

Material: ABS (Acrylonitrile Butadiene Styrene)
Function: Provides structural support and housing for the internal components.
Manufacturing techniques: Injection molding.

11. Mouse shell bottom

Material: ABS (Acrylonitrile Butadiene Styrene)
Function: Provides structural support and housing for the internal components.
Manufacturing techniques: Injection molding.

12. Battery coil negative terminal

Material: Nickel-coated music wire/Stainless steel
Function: Aid the electrical connection of the mouse, while providing mechanical support to the battery.
Manufacturing techniques: Coiling, heat treatment, grinding, finishing and plating.

13. Battery coil positive terminal

Material: Nickel-coated music wire/Stainless steel
Function: Aid the electrical connection of the mouse, while providing mechanical support to the battery.
Manufacturing techniques: Coiling, heat treatment, grinding, finishing and plating.

14. Printed Circuit Board (PCB)

Material: Fiberglass (FR-4), Copper
Function: Translates user movements and clicks into digital signals that can be understood by the computer.
Manufacturing techniques: Software design, substrate preparation, fabrication and etching.

15. Micro switch Type A

Material: Polycarbonate (PC), Polyphenylene Terephthalate (PBT), or nylon for the housing, Metal contacts
Function: Provide tactile feedback, ensure responsiveness and functionality of the mouse.
Manufacturing techniques: Injection molding, stamping, shaping, forming.

16. Micro switch Type B

Material: Polycarbonate (PC)/Polyphenylene Terephthalate (PBT)
Function: Provide tactile feedback, ensure responsiveness and functionality of the mouse.
Manufacturing techniques: Injection molding.

17. Micro switch Type C

Material: Polycarbonate (PC)/Polyphenylene Terephthalate (PBT)
Function: Provide tactile feedback, ensure responsiveness and functionality of the mouse.
Manufacturing techniques: Injection molding.

18. Optical mouse sensor

Material: A tiny camera (CMOS sensor), semiconductor substrate, plastics, and various metals
Function: Illuminates the surface beneath the mouse, capturing a series of images of the surface’s texture with a tiny camera sensor.
Manufacturing techniques: Semiconductor fabrication techniques.

19. LED Light

Material: Aluminium gallium indium phosphide alloys and indium gallium nitride alloys
Function: Detect the changes beneath the mouse, and to track the movement of the cursor.
Manufacturing techniques: Semiconductor wafer creation, chip formation, etching and coating.

20. Toggle switch housing

Material: ABS (Acrylonitrile Butadiene Styrene)
Function: Houses the actuator that helps control the mouse circuit.
Manufacturing techniques: Injection molding.

21. Toggle switch actuator

Material: ABS (Acrylonitrile Butadiene Styrene)
Function: Allows the mouse to manually be switched on and off.
Manufacturing techniques: Injection molding.

22. M1.6 screw

Material: Carbon steel/Stainless steel/Alloy steel
Function: Holds the bottom mouse shell and middle mouse shell together.
Manufacturing techniques: Straightening, cold heading and thread rolling.

23. F-Switch component encasing

Material: Aluminum
Function: Helps complete the circuit of the mouse.
Manufacturing techniques: Die-cutting, stamping.

24. F-Switch component housing

Material: ABS/Other polymer blends
Function: Houses the internal components of the F-Switch to complete the circuit.
Manufacturing techniques: Injection molding.

25. F-Switch component contact

Material: Gold/silver-plated metal
Function: Prevent oxidation and ensure good electrical conduction.
Manufacturing techniques: Die-cutting, stamping.

26. F-Switch component core

Material: ABS/Other polymer blends
Function: Mechanical scroll wheel encoder.
Manufacturing techniques: Injection molding.

27. Scroll wheel

Material: ABS/Polycarbonate
Function: Aids the functionality of the mouse.
Manufacturing techniques: Injection molding or insert molding.

28. AA Battery

Material: Zinc and manganese dioxide mixture, with a potassium hydroxide electrolyte, enclosed in a steel casing
Function: Power source for the mouse.
Manufacturing techniques: Assembling an outer steel can, which serves as the positive cathode, and filling it with the cell’s internal components in a highly automated process.

29. Tool used – Small Phillips Head Screwdriver

30. Tool used – Small Flat Head Screwdriver

31. Tool used – Tweezers

Teardown Process

Notable design elements

• The USB-A receiver housing was quite interesting to me as the slotting mechanism at the bottom of the housing not only made it easy to disassemble the part, but also must’ve eased assembly of the receiver. The sleekness of the cap was ergonomically great to open the piece using just an index finger and thumb. Lastly, the ridges on the bottom of the housing acted as a good grip as well for easy removal from the USB port.
• The overall transparency of the mouse shells evoked a lot of curiosity for me personally, since I was able to see all the components at once. The composition that all the parts created together also gave me a sense of engagement with the product. Lastly, the transparency of the mouse shells also helped see the internal working of the mouse.

Parts Overview

1. Outer Shade
   Material: Polycarbonate plastic
   Function: Acts as a diffuser for the LEDs (3.)
   Manufacturing Technique: Injection molding
2. Central Housing
   Material: Polybutylene terephthalate
   Function: Holds all internal components (3., 5., 6., 7., 8., 9.) and provides insulation and structural support between the hot electronics and the metal base (4.)
   Manufacturing Technique: Injection molding
3. Flat LED Panel
   Material:
   Substrate: Aluminum metal-core printed circuit board
   LEDs: Semiconductor chips (gallium nitride, GaN) mounted in epoxy or silicone encapsulants
   Function:
   Substrate: Spreads heat away from the LEDs to maintain efficiency and lifespan
   LEDs: Generate light
   Manufacturing Technique: Metal-core PCB fabrication, surface-mount technology (SMT), reflow soldering
4. Metal Screw Base
   Material: Aluminum
   Function: The threaded part connects mechanically to the socket’s neutral line, and the bottom tip contact connects electrically to the live line.
   Manufacturing Technique: Cold heading, thread rolling, stamping, nickel plating
5. Circuit Board (Labeled E64353)
   Material: FR-4 fiberglass PCB with copper traces
   Function: Holds all the electronic components (6., 7., 8.) in place and provides electrical pathways through the copper traces that connect components together
   Manufacturing Technique: Laminating, copper cladding, photolithography and etching, solder mask application, silkscreen printing
6. Inductor
   Material: Copper wire, ferrite core, plastic insulation
   Function: Filters electrical noise, smooths current, and improves efficiency
   Manufacturing Technique: Wire drawing, encapsulation
7. Bridge Rectifier
   Material: Silicon semiconductor encased in epoxy resin
   Function: Converts high-voltage AC (120/230 V) into low-voltage DC current suitable for the LEDs
   Manufacturing Technique: Die fabrication
8. Electrolytic Capacitor
   Material: Aluminum can, electrolyte inside, plastic sleeve
   Function: Stores and releases energy, stabilizes DC voltage, and reduces flicker in the LED output
   Manufacturing Technique: Foil etching and forming, winding, can sealing
9. Two Screws
   Material: Steel
   Function: Secure the LED board to the central housing
   Manufacturing Technique: Cold heading, thread rolling, electroplating

Dissassemble Process

1. Shade Removal
   • The outer diffuser shade was detached from the housing by carefully bending and pulling it by hand.
   • Since the parts were friction-fit and bonded with a rubber-like adhesive, removal caused minor cracking and shattering of the plastic.

2. Unscrewing the Fasteners
   • A screwdriver was used to remove the two screws securing the LED panel to the housing.

3. LED Panel Removal
   • Pliers were inserted into the screw holes on the LED panel to grip, peel, and pull the panel away.
   • The panel was also partially glued to the housing, requiring additional force to separate it.

4. Metal Base Removal
   • A utility knife was tapped along the edge of the steel screw base to gradually break the seal.
   • Once loosened, the steel shell was peeled back and separated from the plastic housing.

5. Circuit Board Removal
   • Pliers were used to extract the driver PCB, which was loosely friction-fit inside the central housing.

6. Electronic Component Removal
   • Pliers were also employed to detach the remaining electronic components from the PCB.

Interesting Takeaways

1. Slotted Plastic Housing for Circuit Board Alignment
   The central plastic housing features tapered slots that transition from larger openings to narrower channels. This geometry guides the circuit board into position during assembly while ensuring that the board is securely held in place by friction fit. This approach reduces the need for additional fasteners, simplifying assembly and lowering manufacturing costs, also ensuring adequate retention during the lightbulb’s operational lifespan.

2. Use of a Metal Screw Base with Crimped Attachment
   Another notable design choice is the crimped interface between the metal screw base and the plastic housing. Instead of adhesives or screws, the base is mechanically deformed around the housing to create a strong, permanent connection. This ensures mechanical durability and also streamlines high-volume manufacturing, minimizing part count and assembly time.

Samsung BN59-01391A Smart TV Remote Control teardown knolling

Plastic Shell (Front)

Material: Plastic

Manufacturing: Injection molded using a custom mold for shape and precision.

（Remove the screws with a small Phillips screwdriver. ）

Mounting Screws ×2

Material: Metal

Manufacturing: Metal wire is cold-forged to form the screw head, and threads are formed using a thread rolling machine for high speed and accuracy.
Surface is treated with black oxide coating or black nickel plating to create a rust-resistant and visually appealing black finish.

（Pry open the remote casing with a flathead screwdriver and a small knife.）

Plastic Shell (Back)

Material: Plastic

Manufacturing: Injection molded using a custom mold for shape and precision.

Plastic Button

Material: Plastic

Manufacturing: Molded via injection molding for shape and function.

Silicone Buttons

Material: Silicone

Manufacturing: Molded using compression molding, then printed color on the surface.

Solar Panel

Materials: Silicon, glass (low-iron tempered glass with Anti-Reflective Coating coating), plastic, metals, wires with rubber tubing

Manufacturing: Layers of silicon cells are sandwiched between tempered glass and protective plastic sheets. Electrical wires and rubber tubing are added for connectivity and sealing.

Printed Circuit Board

Materials: Core of non-conductive material: Fiberglass-epoxy composite (FR4), copper traces, solder mask

Manufacturing: The fabrication involves imaging and etching copper layers, drilling holes, plating with copper, and laminating layers to form the base circuit. The board is etched with copper circuits, and components are soldered on via wave soldering or reflow techniques.

Chip:
Atmosic ATM2231U — an extreme low-power Bluetooth 5.0 system-on-a-chip (SoC) designed for Internet of Things (IoT) applications. Specifically engineered to extend battery life in wireless devices.
Winbond 25Q40EWNIG — 4-megabit high-performance serial NOR flash memory chips.
PJ2086MB210 — no data found
BQ505 — no data found

Tools and techniques used to take it apart: Phillips screwdriver, flathead screwdriver, craft knife.

two design elements that interest me：

One interesting design element is the silicone button, which appears to be made from two differently colored silicone parts: a translucent base and an opaque white key cap. I imagine the white silicone is placed into the mold first, followed by the injection of transparent silicone to encapsulate it. I’m not sure why the designer chose this approach, it may be for cost-efficiency—by limiting the amount of white silicone pigment used—while still maintaining the desired appearance on the surface.

Another interesting design is how the two VPC batteries are connected to the PCB. They are directly soldered onto the board with four solder joints, which makes the setup straightforward and easy to identify. However, this also leads to a potential weakness—these connection points are more prone to damage or disconnection, especially with frequent handling or over long-term use. It reminds me of my Apple Magic Keyboard can’t charge, so I couldn’t use the Bluetooth connection. I suspect that one of its solder joints may have come loose. I think the designer may have chosen this method for its speed and simplicity in assembly. It also makes repair or inspection relatively easy, as the joints are clearly exposed and accessible.

Teardown Process:

1. Unscrewed plastic casing from headband
2. Ripped leather from arm and removed foam pads
3. Used screwdriver to pry open plastic casing and removed wires
4. Broke yoke off the head band with shears and hands
5. Pried ear pads off with screwdriver
6. Pried off plastic bowl from ear pads with screwdriver
7. Unscrewed circuitry from ear pad casing
8. Removed buttons from ear pad casing
9. Pushed magnets out of casing with screwdriver
10. Removed diaphragms from casing
11. Removed circuit board from casing with LED light, auxiliary jack, micro-USB input
12. Removed 1.48wH battery

Components and Manufacturing Process:

1. Speaker covers
   • Materials: Plastic
   • Manufacturing Process: Injection molding machine, stamp machine for applying branding. Pneumatic tool forces two halves of speaker cover together. Speaker unit is inserted into plastic housing by technician. Technician solders two wires to speaker.
2. Ear Pads
   • Materials: Foam, cotton, leather, mesh
3. Headband
   • Materials: Leather, plastic, foam
   • Manufacturing Process: Technician threads wires through headband, passing audio from left speaker to right, adjustable strap is attached.
4. Lithium Ion Battery
   • Materials: Copper, Lithium Polymer, Aluminum
   • Manufacturing Process: mix electrode materials, combine with conductive binding agent to create slurry, coat slurry over copper and aluminum coils, dry to remove solvents and moisture, clean, cut, vacuum oven treatment, cell assembly, charging/decharging, finishing and quality control
5. Speakers
   • Materials: Plastic, plastic sheet, copper, magnet, foam, solder
   • Manufacturing Process: Specialized machine that spins thin, copper wire around a cylinder to create a diaphragm that will vibrate and create sound. Press applies heat and pressure to a plastic membrane to create a wide audio frequency range, technician punches out the molded shape, then applies glue to the mold. Technician attaches copper diaphragm to plastic mold. UV light activates glue to seal mold to diaphragm.
6. Circuit boards
   • Materials: Phenolic paper, solder, aluminum, copper, plastic
   • Manufacturing Process: Soldering paste in stencil, spreads tin-lead alloy, printing blades spread soldering paste on to stencil, install surface wiring elements with rapid placing machine (8,000 parts per hour!), convection oven to solder parts to card, manual hand placement of priority parts, metallic placement cards soldered to card in a bath of molten tin-lead alloy, electrical test on bed of electrified pegs, final computer-aided operating test to test functional operation.
7. Screws
   • Materials: Steel

Interesting Design Choices:

1. The buttons on the headphones have a satisfying tactile click. The designers’ intention was to create immediate feedback to the user that the device has received to their input.
2. The speaker in the plastic casing has a thin, plastic film layer that vibrates to establish audio frequency range.

Breakdown of Components & Manufacturing Techniques

Press Each Category Below To List Each Component And Materials 🙂

Body Of Car

• Top: plastic; outer shell resembling the real Lamborghini Aventador)
• Bottom: plastic; underbody of the outer shell)

‘Engine’

• Chip XT-015R (4-20mA Current Transmitter with Sensor Excitation and Linearization) metal and plastic; monolithic 4-20mA, 2-wire current transmitter with two precision current sources, serves as the car’s internal controls
• Conductive Metal: copper; located on the inside of the top of the car, conducts electricity from the batteries to the front wheels
• Wires: copper and rubber; red and black covered wires used to transmit electrical signals to all parts of the vehicle

Wheels

• Power Box: plastic; mounted right under the battery slot in a white, small container with grease
• Front Wheels (plastic; free-standing, not attached to the outer body)
• Motored Rear Wheels (plastic; attached to the outer body, sealed in an enclosure that cannot be opened)
• Rear Wheel Gearbox (plastic and weird lubricant; resting above the rear wheels, filled with a white grease that seems to keep the gears lubricated so that the rear wheels can turn)

Tools and Techniques Used For Teardown

I only needed to use my hands and a generic tiny screwdriver 🙂

2 Design Highlight

North/South and East/West directional controls on the controller

I personally think that it makes perfect sense to keep the controls to a rigid two-direction option, however, I personally prefer a controller with more mobility in its use. Overall, though, this tactic is straight to the point and effective.

The car’s purpose is to drive rather than capture the car’s details

When I first received this car, my first instinct was to try to open the doors to see how detailed the model actually was. Unfortunately, the entire car’s body was just mainly one big piece covering the ‘engine’ inside. I understand this is more cost-effective, especially if the purpose is speed, not Lamborghini details.

Final Thoughts

Overall, this seems to be a nicer RC car, but a cheaper car model. This was a fun product to teardown, as I was surprised by what I found inside. Not as much material is needed to create some fun!

Background

My room has been decorated with these Christmas lights and I turn it on every night because I feel so cozy. I stare and watch these lights blink every time, dying to figure out how he’s blinking.

Teardown

This is a string of 16 star shape LEDs. I used a screwdriver kit for teardown.

Christmas LED lights consist of various parts:

• LED Bulbs: The individual light-emitting diodes that produce light.
• Wires: The insulated wires that connect the LEDs and carry electricity.
• Resistors: Components used to control the current going to the LEDs, preventing them from burning out.
• Power Plug: The plug that connects the light string to a power source.
• Controller Box: A box that controls various light settings, like flashing, fading, or steady modes.
• Fuse: A safety device located in the plug to prevent electrical overloads.
• Connectors: Used to link multiple strings of lights together.
• Housing/Enclosures: The protective casing around the LED bulbs.
• Capacitors: Sometimes used in circuits to smooth out the power supply to the LEDs.

Christmas lights are made from 2 sets of materials:

• A copper wire that is covered in green or white PVC plastic
• Bulbs are made from blown glass, meal filaments, metal contact wires and plastic bases

Design Element: The bulbs on Christmas LED lights have a frosted housing that diffuses the light.

Reason for Design: Aesthetic Appeal

The diffusion smooths the harshness of the direct LED light, making it more visually pleasing. This enhances the festive atmosphere by providing a gentle, warm glow rather than a sharp light.

CZJUTAI Class 2 Power Supply

Model: JT-DC120V0300-C | 0.30 Amp

Works with TAIJU Yard Inflatables

datasheet：

Connection type: C-tip

Input Voltage: 110v – 240v

Output 12V at 0.30A

Right tip Negative – Left tip Positive

Polarized – lines up with keyway notch

Works worldwide – needs a 2 prong connector for region of use.

It plugs into your normal 120V AC power plug in your home. It has 8 pre-programmed modes which can be cycled by a push button.

Design Element: Christmas LED lights feature pre-programmed lighting patterns, such as chasing lights, slow fading, or twinkling.

Reason for Design: Dynamic Visuals

Sequential lighting patterns create movement and dynamic visuals, which draw attention and add excitement to the display. The motion of lights can evoke a sense of joy, during the holiday season.

christmas led lights circuit diagram:

I received the Ultrahuman Ring Air for my teardown project. These fitness tracking rings have spiked in popularity in recents year due to it’s small concise design and accurate data tracking.

I have separated this teardown into two separate parts; the charging dock and the ring.

Charging Dock Teardown:

Before starting anything I analyzed the product and noticed that the bottom of the charging dock had some sort of adhesive pad. I peeled off this material to reveal screws. This begun my teardown process.

The tools for this step were simple. I just grabbed a screwdriver to loosen the screws and the rest of the charging dock came apart 🙂

I then moved on to the ring… which did not go as smoothly as the charging dock. After consulting teardown videos of the Ultrahuman Ring Air (credit: Becky Stern) I opted to begin by cutting through the rings exterior metal shell. This was a trial and error process, the successful technique I used (credit: Sophia Haase) is displayed in the following video.

Ring Teardown:

Has seen here, I had to use a clamp, a flat head screwdriver and a hammer to cut through the metal.

*I may have accidentally hit the lithium battery on my first attempt. YIKES.

Moving on to the interior of the ring, I did have to start by wedging in between the metal and the plastic coating to separate the two. Again I used the hammer, clamp and screwdriver.

Once apart I could clearly observe the components that were housed inside the plastic interior.

Knolling 🙂

Manufacturing Techniques for Ultrahuman Ring Air:

1. Titanium shell fabrication: Likely uses precision CNC machining or metal injection molding (MIM)
2. PCB manufacturing: Flex PCB technology for the main circuit board. Also it likely uses photolithography and etching processes
3. Sensor integration: Photodiode and LED array integration for heart rate sensing
4. Chip bonding: Wire bonding or flip-chip bonding for attaching semiconductor chips to the PCB
5. Encapsulation: Use of epoxy resin to protect and secure internal components
6. Battery integration: Custom-shaped battery to fit the ring form factor
7. Charging base manufacturing: Plastic molding for the base structure and integration of the charging circuitry and USB-C connector

Ultrahuman Ring Air Components and Functions:

Item #	Component	Function
21	Nordic NRF52840	Bluetooth Low Energy (BLE) System-on-Chip (SoC) – Handles wireless communication – May handle some main processing tasks
8	STM32G0	Microcontroller from STMicroelectronics – Likely handles sensor data processing, power management, and possibly user interface functions
7 and 20	Crystal oscillators	Provide accurate timing signals to microcontrollers and wireless chips – Ensure precise operation of digital systems and radio communication
24	Photodiode and LEDs	Used for heart rate sensing – LEDs (green and red) emit light into the skin – Photodiode detects reflected light for heart rate measurement
2	Wireless charging antenna	Enables inductive charging of the ring
19	Chip antenna	Facilitates Bluetooth communication
25	Battery	Provides power to the device
1	USB-C connector	Allows for charging and potentially data transfer

Design Features:

Overall I like the design of the Ultrahuman Ring Air. One design example that particularly stood out to me was the light in the charging dock which indicates the rings charging status.

Another design feature that I liked was that the company sends you a size kit so you can try on the ring before placing an order. I know this information wasn’t found during the teardown but I think it is a great aspect of the design to note.

Thank you!

🌟after teardown⬇️

🌟Tear down tools⬇️

I had previously replaced the fan, speakers, and battery for my 2015 MacBook Pro, so initially I didn’t think I would spend much time on disassembly. However, the screws 🔩 on this old laptop really gave me a hard time, and I did end up forcibly cutting some of the metal washers used for fastening. Everything went relatively smoothly overall. I really enjoyed it and was so focused that I almost forgot to take pictures of my disassembly process, only leaving a video to record it all 😂.

🌟The following are the components I disassembled and can identify.⬇️

1Battery

Model: A1322 10.95V-63.5Wh

Serial Number: 9G1340UV6D3MA

2 Fan

Single fan design (no wonder the 13″ Mac had obvious heat dissipation issues back then)

Model: KSB0505HB

Serial Number: QE1342DER411C

Disassembly level: Can still be further disassembled

3 Motherboard

• Model: 820-2936-B

• External components:

• Main chips:

• RAM memory

Equipped with two 8GB memory sticks

Model: 8G DDR3L-1333 SODIMM MAC

4 Wi-Fi signal module

Model: BCM94331PCIEBT4

5 Slot-loading CD drive

6 Speaker system

7 Trackpad module

There are three still unknown chips on the Touchpad Trackpad Flex Ribbon Cable Replacement.

Disassembly level: Can be further disassembled

8 Keyboard

I can’t unscrew all furthers, so this is as far as I can disassemble.

9 MagSafe power port

10 SSD cable

11 Screen

12 Structural components

🌟Materials / Manufacturing processes ⬇️

	Materials	Manufacturing processes
Chassis	Aluminum alloy	Molding, anodized treatment
Cables	plastic Metal
Display	LCD panel with IPS (In-Plane Switching) technology
Keyboard	Plastic	Scissor mechanism structure, injection molding process
Motherboard	Multi-layer PCB (Printed Circuit Board)
Battery	Lithium-ion battery, aluminum shell
Trackpad	Glass surface & aluminum base
Speaker System	Plastic  & metal
Ports and Connectors	Plastic  & metal
Cooling Fan	Plastic blades & metal bearings

🌟 My feeling ⬇️

My biggest impression from this teardown work is how ingenious the internal structure of a Macbook is. The internal components are all precisely engineered, with a compact and orderly layout. I also really like the modular design in the device, where all the functions I can identify in the hardware appear in a modular form. The immediate feeling when opening the back cover and seeing the internal structure is that it’s beautiful, a very intuitive engineering aesthetic. I think this kind of modularity is beneficial for everyone. I’m also starting to understand why so many Apple enthusiasts like to disassemble MACs 😊.

https://videopress.com/v/UaLVtTIC?resizeToParent=true&cover=true&preloadContent=metadata&useAverageColor=true