DIY Guitar Pedal Circuit Tester Enclosure

Build Your Own Breadboard Tester — Clean, Compact, and Affordable

If you build guitar pedals, you know how valuable a good circuit tester is. This 3D printed enclosure is designed to house your own DIY breadboard tester setup—giving you the same core functionality as high-end units, without the price tag.

This is designed specifically for pedal builders who want a clean, reliable, and reusable testing setup using parts they likely already have.

What This Enclosure Is For

This enclosure is built to support a DIY guitar pedal circuit tester, allowing you to:

• Quickly test breadboard circuits with real guitar signal
• Toggle between true bypass and your circuit using a 3PDT switch
• Power your circuit with a standard 9V DC adapter
• Visually confirm engagement with an LED indicator

Key Features

• Designed for standard pedal hardware:
  • 3PDT switch
  • ¼” input/output jacks
  • 9V DC power jack
  • LED + bezel
• Clean, compact layout for efficient wiring
• Integrated routing for breadboard leads
• Durable 3D printed construction
• Minimal footprint — perfect for any workbench

What You’ll Need

To complete your tester, you’ll need:

• 3PDT toggle switch
• 2x ¼” mono jacks
• 9V DC power jack
• LED + appropriate resistor
• Hookup wire
• Breadboard (any size – 400 point fits great)

💡 Total component cost is typically under $10 if you already have some parts on hand.

What You’ll Receive

• 1x 3D Printed Circuit Tester Enclosure

⚠️ No electronics or hardware included. This is enclosure only.

Built for Builders

This enclosure is featured in my circuit tester build video, where I walk through:

• How the wiring works
• How to hook up the 3PDT switch
• How to integrate your breadboard

Perfect if you want to follow along and build your own tester from scratch.

Simple. Functional. Built for real pedal builders.

Turn your loose parts into a powerful, reusable circuit testing tool.