In late July of 2025 I had bought a guitar pedal kit but unfortunately it had been gathering dust on my shelf until April of this year, and by the time I had realized that I hadn’t bought all the supplies needed, the shop I bought I from closed down, meaning I had to design the rest my self.
PCB Board
The kit I had bought was missing the PCB board for the 3PDT foot switch to make it look more neat, it wasn’t a necessary addition however it came in handy for the assembly of the pedal due to the small size of the pedal enclosure. Without it, many of the wires would have been close to contact which is less than reassuring.
To make the PCB I used KiCAD to write up the schematic for the connections for the 3PDT foot switch to the current limiting resistor, LED, input jack shield, input jack tip, input effects PCB, output effects PCB and output jack tip. I had to design my own footprint for the 3PDT foot switch in order to have the schematic and design due to KiCAD not having one in their library for public access. Once that was done I switched to designing the PCB itself, tracing the copper lines and saving into a zip file and sending it to PCBWay to be manufactured. To make things more visually comprehensive in the design process I also built a 3D model using a pre designed model of the 3PDT foot switch to ensure that everything would assemble 
Soldering/Drilling Process
Now that I had all the parts I could solder them all together using the diagram from DIY Guitar Pedals. Once the soldering was complete I had to drill holes into the 1590a enclosure that I bought separately from Amazon, in order to accommodate the foot switch, LED, volume/tone dials, input/output jacks and the miniature 9 volt DC power jack. In order to drill the holes, we used a drill bit that came with the 1590a enclosure that provided predetermined sizing.
Troubleshooting
The first problem we ran into was a soldering issue that led to too much power being fed to the LED causing it to break. Unfortunately due to the timing of this project I could not aquire a new LED in time to post this, but one is on the way. I also realized that the design of the LED and the resistor was backwards because the resistor was supposed to be between the power and the LED not after it.
Another soldering issue that occurred was the complete detachment of the output jack, which was an easy fix but still a minor set back. The next issue I ran into was once I thought everything was complete and I went to testing was a humming noise coming from the pedal once plugged into to the amp. This issue occurred before being placed in the enclosure and it’s also when the LED broke. I found out that the humming was due to the input and output jack shield not being in contact with the enclosure m. Once everything was encapsulated and there was unwanted contact between wires, the pedal was completed.