Digilent Analog Discovery 2 + BNC Adapter case

prusaprinters

<h3>Overview</h3><p>The <a href="https://amzn.to/3H9afeu">Analog Discovery 2</a> from <a href="https://store.digilentinc.com/analog-discovery-2-100msps-usb-oscilloscope-logic-analyzer-and-variable-power-supply">Digilent </a>is a handy tool for simple electronic experimentation offering a full digital + analog lab in your pocket. Digilent offers a BNC Adapter Board for use with more traditional test probes but is sold without an accompanying enclosure. I knocked together this design to reduce strain on the pin headers and to provide some measure of protection from the horrors that lurk on my bench.</p><p>I'm using the AD2 as a learning tool while working through exercises provided by the excellent <a href="https://contextualelectronics.com/">Contextual Electronics courses available online</a> .</p><h3>Models</h3><p>There are two parts to this model. The file Analog Discovery 2 BNC base.stl snaps over the feet on the AD2 to hold it in place and provides a platform for the BNC Adapter Board. This leaves the top of the BNC Adapter Board exposed for easy access while still providing a rigid platform for the two devices while assembled. It also braces the BNC connectors a little to help reduce strain on the PCB as cables are plugged/unplugged from the device.</p><p>The file Analog Discovery 2 BNC cover.stl fits over the BNC Adapter Board to provide additional rigidity, completely enclosures the BNC connectors for maximum strain relief, and leaves the top open for access to the jumpers (but making them a little harder to reach). The cover is optional.</p><h3>Assembly</h3><p>This enclosure will require 4 x M3 nuts press fit into the bottom of the base, and either qty 4 M3x10mm screws if you're just using the base, or qty 4 M3x25mm Socket Cap screws if using the top. I picked up <a href="https://amzn.to/3mwmOs9">this set</a> a while back that has worked well for me.</p><p><strong>Notes:</strong></p><p>Printed with <a href="https://amzn.to/3ep9RMx">Overture PETG</a>. I'd strongly recommend using PETG for this print as you'll need a little bit of flex to snap the Analog Discovery 2 device into the retaining clips (problematic with PLA), and you'll also want the dimensions to be reasonably accurate (problematic with ABS).</p>