In this weeks layer by layer we’re going to take a look at making an enclosure for the Raspberry Pi A+.
In our previous project, we created an enclosure for the Raspberry Pi B+, so we’re going to make a copy of that and modify the model slightly to make an A+ version.
The A+ model features the same mounting holes from the B+, so we can leave those as they are. The A+ includes just one USB port, so we can delete the extra USB and ethernet port.
The A+ PCB is 65mm long, so it’s 20mm shorter then the B+ model. We can use the pull face feature to reduce the length of the PCB. Now we can move the USB port over 20mm to accommodate for the size change. The width of both A+ and B+ are 56mm, so that stays the same!
The HDMI, Micro USB, SD card slot and A/V jack are also in the same locations as in the B+ model, so we don’t have to move any of them.
In the B+ case, I didn’t make openings for the camera/display connectors or the GPIO header. So in this A+ version, I measured the cables and modeled each part so we can use them to create cutout openings. Using the combine/subtract operation, we can cut out these openings in the top cover so cables can pass through the top.
The case ended up being 20mm tall and 1.5mm thick so its small with a little wiggle room. There’s enough clearance for all the cables to pass through and it’s easy to reuse the A+ model for other projects.
I hope this simple enclosure helps you with your Raspberry Pi projects and feel free to download and customize the model. If you print one out, please share and post it up in the Adafruit forums.
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