Creating an ergonomic mechanical keyboard from scratch is an interesting challenge that combines electronics, programming, and design. While it may sound daunting to beginners, you can easily complete the task by breaking it down into manageable steps. These include conceptualizing the design, sourcing the components, assembling the parts, and programming the keyboard.
### Step 1: Conceptualizing Your Design
Before starting your ergonomic mechanical keyboard project, it’s crucial to understand your needs and preferences. Draft a rough sketch or a CAD design of the keyboard layout to visualize the final product. Consider factors like the number of keys, their arrangement (standard, split or staggered), the wrist rest design, and the inclination of each keycap.
To help reduce unnecessary reaching and maintain a natural arm position, use the ANSI layout as a starting point and tweak based on your personal hand size and fingertip reach. If possible, consult with an experienced ergonomist to ensure your design provides maximum comfort and support.
### Step 2: Sourcing Your Components
After finalizing your design, it’s time to source the parts for your ergonomic mechanical keyboard. Key components include a printed circuit board (PCB), switches, keycaps, a case, and cable connectors. Use websites like KeycapLabs, KBDfans, and MechanicalKeyboards.com to find the best components for your needs.
Regarding switches, they come in three types: linear, tactile and clicky. Linear switches provide a smooth keystroke, tactile switches have a noticeable bump midway, and clicky switches produce an audible click sound. The switch type you choose should match with your typing style and sound preferences.
As for the keycaps, they are available in various materials like ABS plastic or PBT plastic. ABS plastic is shiny and smooth, whereas PBT plastic is matte and textured. Custom designs can be printed on the keycaps using dye-sublimation, laser etching, or double-shot molding.
### Step 3: Assembling Your Ergonomic Mechanical Keyboard
Once you have all your components, start assembling your keyboard. Begin by aligning the PCB (printed circuit board) with the switches in the correct layout from your design. Once placed, solder the switches onto the PCB. Take your time with this process to ensure each switch sits correctly, with its pins feeding through the PCB holes.
Secure the PCB into the keyboard case, ensuring that all the switches fit snugly. Next, attach the stabilizers to larger keys (enter, shift, space bar, etc.). Following this, secure the keycaps onto the switches.
Finally, connect a detachable USB Type-C cable from the keyboard’s PCB to your computer. Make sure to connect it in a way that does not obstruct any operational part of the keyboard nor create tension or stress on the cord.
### Step 4: Programming Your Ergonomic Mechanical Keyboard
Several software tools can be used for programming your keyboard. Popular choices include QMK (Quantum Mechanical Keyboard) firmware and VIA. Your choice will depend on the complexity of your requirements and the level of assistance the software provides.
If using QMK, you will need to download the QMK Toolbox from their website and select your PCB. From there, you can customize your keymap, macros, and RGB lighting, and upload the code onto your PCB.
Alternatively, if your PCB supports VIA, you can use it for real-time programming. Simply download the software, launch it, and begin customizing your keyboard immediately. You can reassign keys, adjust the RGB lighting, and save multiple keymap layers for different activities.
### Design Customizations and Final Touches
After programming your keyboard, you can add more modifications for personal flair. Create a custom keycap set or add an underglow feature for aesthetic touches. You might also consider sound dampeners or O-rings to control the volume of your keystrokes.
For the wrist rest, use comfortable materials like memory foam, gel, or wood. You could purchase a pre-made one that matches the width and style of your keyboard, or craft a custom one for a tight fit.
Creating an ergonomic mechanical keyboard is not only practical but also enjoyable, providing a customizable tool that caters to your specific needs. By understanding the components, learning soldering basics and diving into the world of keyboard programming, you can create a comfortable, ergonomic mechanical keyboard that you’ll use daily with pride.
