This project is the weirdest thing I’ve ever worked on. I wanted to show the case I’m working on.
The design challenge is the following:
215 of these live in the wild and I want to make sure people can just drop in their PCB and everything works fine. Below is a picture from someone’s existing PCB
Here is the design in fusion without the card swipe on it. Note the Pro micro goes on the upper right corner either on top of the PCB or below.
Note the PCB fits perfect inside of the case and only uses 4xM2 screws
Below is the case after its been made out of aluminum:
the PCB barely fits and I mean barely so I assume the PCB manufacturing tolerance is greater than the CNC tolerance. So I need to compensate for this in the design. I will update the design to have a greater tolerance but I’m nervous the M2 screws won’t align in the PCB.
Issues with the proto 1:
- The depth of the bottom case needs to be deeper
- There needs to be some sort of rubber pad so the pro micro pins won’t touch
- An actual speaker holder
- Rubber spots under the bottom plate
anyways I just wanted to share the case design and some of the issues