Build a Custom Mechanical Keyboard: A Beginner's Guide

March 21, 2024

Have you ever wanted typing or gaming on a keyboard that's been specifically tailored to your needs? Well, it's time to turn that fantasy into reality. 

You can design and construct your own custom mechanical keyboard that is fine-tuned to your unique requirements. You're not alone; gamers and keyboard enthusiasts love tailoring their keyboards to suit their needs and preferences.

This guide will lead you step by step, shedding light on the core components like switches, keycaps, and stabilizers, and leading you to the assembly stage.

It might seem a bit overwhelming at first, but it gets easier with every step.

What is a Mechanical Keyboard

Ah, the mechanical keyboard – a modder's dream and a gamer's delight! If you're looking to boost your typing and gaming experience, this is the input device for you. Unlike those mushy standard membrane keyboards, mechanical keyboards are a breed apart.

At the heart of a mechanical keyboard are individual mechanical switches for each key. Each key has distinct mechanical components such as metal contacts and springs beneath each key. When a key is pressed, the switch's mechanism completes an electrical circuit, sending a signal to the computer and registering the input.

Another great thing about mechanical keyboards is that the keys' design produces tactile and/or audible feedback, providing users with a responsive and satisfying typing experience. The mechanical design of these switches makes them more durable than standard membrane keyboards. 

Why Mechanical Keyboards Are Ideal for Customizing

Mechanical keyboards are a fantastic avenue for personalization, providing endless possibilities for transforming a basic keyboard into a unique expression of your personal taste. Thanks to their adaptable and modular design, every part of these keyboards---from the casing to the plate, switches, and even the keycaps---can be switched, replaced, or tailored. 

  1. Switch Variety: Mechanical keyboards come with a variety of switches, each offering a different feel and actuation force. Customization extends beyond just aesthetics; it includes the feel---and even sound---of typing.
  2. Keycap Customization: Mechanical keyboards have removable keycaps, making it easy to customize the appearance of the keyboard. You can replace keycaps with different colors, materials, and profiles to create a personalized look.
  3. Build Your Own: Mechanical keyboards are modular, allowing you to build your own keyboard from scratch. You can choose a specific case, PCB (printed circuit board), switches, keycaps, firmware, and more. 
  4. Programmable Macros: Many mechanical keyboards have programmable keys and macros. You can assign custom functions or shortcuts to specific keys, boosting your efficiency and productivity.
  5. Backlighting and RGB Options: Mechanical keyboards often come with customizable backlighting, and some models feature RGB lighting. You can personalize the lighting effects, colors, and patterns to match your setup or mood.
  6. Durability and Longevity: Mechanical keyboards are durable, lasting longer than membrane keyboards. 
  7. Hobbyist Appeal: Mechanical keyboards have gained popularity as a hobbyist pursuit. Many enthusiasts enjoy the process of building, modifying, and customizing their keyboards. 

Pros and Cons of Building a Custom Keyboard

a man’s hand shown customizing a mechanical keyboard

It's exciting to build a custom keyboard of your own. Yet, customizing a keyboard offers a range of benefits and drawbacks. Think of these pros and cons before you make your own keyboard:


  1. Personalization: Building a custom keyboard allows you to choose every component based on your preferences, from the switches and keycaps to the case and layout.
  2. Quality and Durability: Custom keyboards often use high-quality components, providing a more durable and reliable typing experience compared to standard pre-built keyboards.
  3. Learning Experience: Building a keyboard can be a valuable learning experience in electronics, soldering, how keyboards function, and more.
  4. Unique Aesthetics: You can create a unique and aesthetically pleasing keyboard that stands out from mass-produced alternatives.
  5. Programmability: Many custom keyboards offer programmable features so you can set up macros, custom key functions, and shortcuts to enhance productivity.
  6. Community and Support: There is a thriving community of keyboard enthusiasts who can provide support, advice, and inspiration for custom keyboard builders.


  1. Cost: Building a custom keyboard can be more expensive than buying a pre-built one, especially if you choose premium components.
  2. Time and Effort: Building a custom keyboard is time-consuming, especially if you're new to it. Soldering, programming, and troubleshooting can be demanding.
  3. Expertise Required: Building a keyboard may require some technical skills, including soldering and programming knowledge. Beginners might find the process challenging.
  4. Limited Warranty: Custom-built keyboards may have a limited warranty. In fact, if you customize the stock keyboard, it may result in a voided warranty.
  5. Compatibility Issues: Ensuring compatibility between various components (switches, keycaps, PCB) can be challenging, and mistakes might lead to functionality issues.
  6. Availability of Components: Some niche or premium components may have limited availability, making it challenging to source specific parts for your build.
  7. No Testing Before Purchase: Unlike pre-built keyboards that you can test before purchasing, building a custom keyboard means you won't know how the final product feels until after assembly.
  8. Resale Value: Custom keyboards may have limited resale value compared to high-end pre-built models from well-known brands.

The Right Tools for Your Custom Build

Ready to build a custom keyboard? Hold on! You need the right set of tools to ensure a smooth and successful assembly process. 

Soldering Tools

  • Soldering Iron: A good-quality soldering iron with adjustable temperature settings is essential for soldering switches and other components onto the PCB.
  • Solder: High-quality solder with a flux core. Lead-based solder is common, but be sure to follow safety guidelines and regulations.
  • Desoldering Pump or Solder Wick: If you make a mistake, use a desoldering pump to remove solder from the joints.

Assembly and Disassembly Tools

  • Screwdriver Set: A set of screwdrivers with various head types and sizes for assembling the case and securing components.
  • Keycap Puller: Used to remove keycaps without damaging them. Especially useful if you plan on customizing your keycaps.
  • Switch Puller: Helps in removing switches from the plate or PCB without causing damage.
  • Tweezers: Precision tweezers are handy for placing small components accurately.

Testing and Troubleshooting Tools

  • Multimeter: Used for testing electrical connections, checking continuity, and troubleshooting issues.
  • Switch Tester: A switch tester can help you ensure that all your switches are functioning properly before assembling the entire keyboard.

Programming and Configuration Tools

  • Microcontroller Programmer: If your custom keyboard uses a programmable microcontroller, you may need a programmer to flash firmware onto it.
  • Software Tools: Depending on the PCB and microcontroller, you might need specific software tools for programming and customization.

Optional Tools for Customization

  • Lubing Tools: For a smoother typing experience, you might need lubricant, a brush, and a switch opener.
  • Case Foam or Dampening Material: For sound customization, consider adding foam or dampening material inside the case to reduce vibrations and noise.
  • Stabilizer Clips and Lubricant: If your keyboard uses stabilizers, you will need clips and lubricant for smoother keypresses.
  • Custom Keycap Puller: For removing specifically shaped or artisan keycaps.

Workspace and Safety Tools

  • Work Mat: A non-conductive work mat can help protect your components and provide a clean and organized workspace.
  • Safety Glasses: Soldering can produce small splashes of hot solder, so wearing safety glasses is a good practice.
  • Ventilation: Ensure proper ventilation in your workspace when soldering to avoid inhaling fumes.

Custom Build a Mechanical Keyboard: A Basic Step-by-Step Guide

a man’s hands shown customizing a mechanical keyboard

Are you excited to dive into the unique world of keyboard assembly? Here's a basic step-by-step guide to assembling a custom keyboard for a novice modder. Note that specific materials, steps, and details may vary based on the components you've chosen. Always refer to the instruction manual provided with your parts.

Step 1: Gather Your Components and Tools

Ensure you have all the necessary components for your custom build, including the keyboard case, PCB (Printed Circuit Board), switches, keycaps, stabilizers, and a soldering iron. Tools you'll need include solder, a soldering iron stand, tweezers, wire cutters, and a screwdriver.

Step 2: Prepare Your Workspace

Set up a clean and well-lit workspace with good ventilation. Lay out all your components and tools, organizing them to make the assembly process smoother.

Step 3: Install Stabilizers

If your keyboard requires stabilizers for larger keys like the Enter or Spacebar keys, install them on the PCB. Clip or screw in the stabilizers according to the manufacturer's instructions.

Step 4: Mount Switches on the PCB

Insert each switch into the designated slot on the PCB. Ensure the switches are aligned correctly and firmly seated. Make sure the switches are facing the correct direction, with the LED (if available) aligned with the designated spot on the PCB.

Step 5: Solder the Switches

Heat your soldering iron and add a small amount of solder to the tip. Touch the soldering iron to the switch's pad and apply solder, creating a secure connection. Repeat this process for each switch. Do not use excessive solder or overheat the components.

Step 6: Test the Switches

Perform a quick test to ensure all switches are working correctly. Some PCBs come with a test point. You can also use keyboard testing software on your computer.

Step 7: Install Keycaps

Place keycaps onto the switches, ensuring each keycap corresponds to the correct switch. Keycap profiles can vary, so be mindful of the layout.

Step 8: Mount the PCB in the Case

Secure the PCB in the keyboard case using the provided screws. Make sure the USB or cable connector aligns with the case opening.

Step 9: Connect the Cable

If your keyboard uses a detachable cable, connect it to the PCB. 

Step 10: Secure the Case

Close the keyboard case, securing it with the screws provided. Ensure all components are properly enclosed.

Step 11: Final Testing

Connect your keyboard to a computer and test all keys to ensure proper functionality. If any issues arise, double-check your soldering connections and switch alignments.

Congratulations! You've successfully assembled your custom keyboard. If you encounter difficulties, don't hesitate to seek guidance from technicians, experienced keyboard hobbyists, and online communities dedicated to custom keyboards.


It's time you have a unique keyboard! The best thing is that you can actually do it by customizing your mechanical keyboard. Your own looks, your own feel, your own experience---it's all on your fingertips.

Chris Greiner, a Mechanical Keyboard specialist, boasts a solid educational background with dual bachelor's degrees in Computer Science and Business Management from Lewis University. His additional certification in Mechanical Keyboard Design showcases his dedication to staying on the forefront of keyboard technology. Chris primarily writes for keyboard enthusiasts and has been featured on platforms like Jestik, solidifying his reputation as a thought leader in the mechanical keyboard community.
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