I have made the clearances tight, shouldn’t be a problem for Raspberry Pi but you may need to tweak the hole placement for your DAC in the FreeCAD file. It’s tweezers to get he SD card out if you are using the Pi 3 A+.
I used 11mm M3 standoffs between the Pi and the DAC, 10mm M3 cap screws through the base and around 14mm M3 cap screw between the RCA jacks.
If you use M3 screws through the base, you will need to drill out the mounting holes in the Raspberry Pi board to 3mm. I run a M3 tap trough the mounting hole between the RCA jacks for the screw and I was able to tighten it plenty.
I found it easier to put the boards into the case without the base attached to them.
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
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.