After soldering, clean with rubbing alcohol and use the snips to clip the leads as close to the
PCB as possible.
2.6 BEND AND SOLDER DIODES
Bend and fit the 1N4148 diodes. In order to get uniform placement of the diodes, I recommend
using a diode bending tool. You can buy one or 3D print one. Here’s a link to my favorite. Bend
the leads inward to hold the diodes in place when the PCB is turned upside down. Begin by
soldering one side of the diodes and adjust the diode alignment to your liking before soldering
the second lead.
Orientation matters! Solder the diodes with the black bar UP as shown in the images. The
keyboard will not work if they are backward.
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