Before we start, let’s check we've got everything included in the kit. If there’s anything missing, send us a message here so we can get you back to the build ASAP!
1 x Gherkin PCB
1 x Switch Plate
1 x Back Plate
30 x Through-hole Diodes
16 x 12mm Standoffs
32 x 6mm Screws
1 x RP2040 Controller + Header Pins
4 x Rubber Feet
30 x MX Switches
1 x Keycap Set
Contents of kit
Tools Required:
Here's a list of the tools you need to build the keyboard:
Soldering iron
Phillips head screwdriver (M2)
Solder
Snippers/Cutters
Diode Bender (Optional)
Tools required
Making the Gherkin:
Step 1: Soldering the Controller Headers
First things first, we can solder the controller headers, you'll want to orientate them by putting the longer pins through the bottom of the PCB. Once they're soldered, we need to snip off any excess pin to avoid them interfering with the switches.
It's important not to get ahead and solder the controller yet, we'll need to solder the switches and diodes underneath it first!
Showing correct header orientation
Snipping the excess pin
Step 2: Bending and Soldering the Diodes
Now we can install our diodes. You can usually get away with estimating the bends, using the distance between the diode holes as a guide. A diode bender does make the job much more accurate and quicker if you've got one!
Bending the diodes to length
Once they're bent, we can insert and solder them into the holes on the top of the PCB, making sure that the black end is pointing the same way as the line on the PCB.
Soldered diode with correct orientation
Step 3: Installing the Switches
Next up we can insert the switches into the switch plate, the orientation isn't vital here, but the notch on switch plate should allign with the notch on the PCB.
Switches in plate
Now we can insert the switches into the top of the PCB carefully, making sure the pins allign with the holes on the PCB. A nice firm press should be enough! And once they're inserted we can solder each switch pin on the back of the PCB.
Switches soldered
Step 4: Flashing and Installing the Controller
Before we install the controller, it's worth checking there's no obvious issues with it (desoldering controllers can be a big pain!). If you're unsure how to do this, click here.
After its been flashed we can solder it to the headers, components side down.
Controller installed
Step 5: Installing the Case and Keycaps
Now we can screw the standoffs to the bottom plate (checking the orientation of the notch again), and place the rest of the Gherkin on top, screwing it into place.
Standoffs installed
Case screwed together
Finally, we can install the keycaps by simply pressing them onto the switches.
Fully assembled
And there we have it, you should now have a fully assembled Gherkin!
