I have a little testing bench by my main computer desk that gets used to test laptops and things. Mounted on the shelf above it is an 8" 4:3 LCD that I 3d printed the casing for, which is great for testing my many computers / motherboards.
A while back (during lockdown 1 I think), I decided to make up an ATX + 3 ISA slot riser PCB and that ended up sitting on shelf by the testing bench, with an Advantech PCA-6134 card fitted. That's kind of become my favourite 'quick testing' PC since it's tiny, fits on the shelf and can fit any ISA soundcard or video card I want to check out.
But it was scratching up the shelf, the pins and even the standoffs were chewing up the wood. And it didn't have a turbo button, or a real power button, all the wires and cards were just dangling around.
So I decided to fix that 😁 Now the sharp bits on the front and back of the riser are covered and at last the cards can be screwed into place so that they don't short on each other.
The whole 3d printed case idea is something I've been slowly working on since I got my 3d printer nearly 2 years ago, but this is the largest one so far.
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It was designed up in fusion 360 using the PCB designs I made up in eagle, the toughest part by far was getting the reference parts in, since ISA ports and 3d models of ISA cards aren't something that pop up when I search for them. Now there's a real turbo button, ATX on/off switch and a reset button, from some switches I had laying around.
This is printed in PETG so it doesn't melt in use and the screws that hold in the cards are screwed into square nuts embedded in the plastic so they can't strip out. The wooden dowel rods I had laying around make it pretty sturdy for a pile of plastic too.
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I've got 5 PCBs, so now I'm tempted to make some more of them. But from here, what I really want to do is expand this to fit a baby-AT motherboard like the little 386 DX motherboards or the 4DPS. Everything does line up on this one, so I'm fairly confident I've got the right dimensions to do it - though I am planning to use some hardboard or maybe plexiglass to cover the expansive areas, it's got to be printable on my Prusa i3
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