This widgets provides a place to store your chuck key while you are drilling holes so it does not get lost. Designed for mini drill presses with a 20mm post. Magnet and/or thumbscrew can be added if desired.
This ia a modular case for the Arduino Microcontroller. It has been designed to fit 6 across in a 1U Rack with a little room to spare. M3 Screws are suggested and not included. The holes have not been drilled or tapped, so you can use #4-40 screws as well.