Electronics Enclosure (DSO 138 + others)

Electronics enclosure for:
* DSO138 Oscilloscope (https://www.aliexpress.com/item/32777588244.html)
* LCR-T4 tester (https://www.aliexpress.com/item/32680013678.html)
* PWM signal generator (https://www.aliexpress.com/item/32962154918.html)
* XR2206 signal generator (https://www.aliexpress.com/item/32781753613.html)
* LM7809 voltage regulator (https://www.aliexpress.com/item/32961984080.html)

Recommended BOM

- 4 M3 X 6 X 5.3 Embedded Nut (old link no longer works - possible substitution M3 X D5 X L6) https://www.aliexpress.com/item/4000232858343.html
- 12 M3 X 3 X 5.3 Embedded Nut https://www.aliexpress.com/item/32974153070.html
- 16 M3 Machine Screw https://www.aliexpress.com/item/32798146322.html

* Note this takes up almost the full print bed of the Ender 3 - use caution when positioning clips

* Updated 7/30/2019 to optimize switch orientation for printing