This is a brilliant use of the design tools already built into PCB software to locate accurately-spaced drill holes:
The reason for this post is to share a simple trick for accurately drilling holes in project front panels. Since the internal circuit for the troubleshooter pedal used a PCB of my design, I included a front panel drilling guide next to the main PC board in the design file that was sent to the board manufacturer.
Thanks to forums user HarpDude for sending us this tip!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.