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[Project] 386/486/SBC 3D Printed Retro Case

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Reply 40 of 81, by oso2k

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I was going to start from an mATX template and go from there. Why is it 275mm tall instead of 75mm tall?

Reply 42 of 81, by oso2k

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Thinking out loud....I wonder if something using two Ls would be plausible, easier to print. Maybe something with through holes or somethgin that allowed a finished 275x275x5mm flat surface to be installed over it.

Reply 43 of 81, by wiretap

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There are easily a dozen or more ways to make covers/lids for this. It's best just to try out something and see how it goes. With the U-design I'm printing right now, it is the motherboard side, top and bottom. Then all that is needed is a single sheet of clear plexi for the case window, and a rear plate for the card slots that can be designed last.

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Circuit Board Repair Manuals

Reply 45 of 81, by wiretap

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It fits perfect, minus a few screw hole offsets. I'll correct those and then upload the Sketchup/STL files.

edit: attached to post #2 of this thread.

PXL_20220928_131148386.jpg

My Github
Circuit Board Repair Manuals

Reply 46 of 81, by oso2k

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Whoa!!! That looks awesome. There’s no mATX or MiniITX hole/standoff pattern right?

Reply 47 of 81, by wiretap

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No mount patterns. They can easily be added though. I am just going to superglue the standoff STL's into place. I have used that method before in other cases instead of drilling/tapping, and it works well.

The U-shape cover is probably only big enough for a SBC backplane though. The drive bays are very close to the back wall, and it isn't likely a big motherboard would fit behind.

My Github
Circuit Board Repair Manuals

Reply 48 of 81, by oso2k

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Yeah. The case is just tall enough for an mATX (244x244mm) or MiniITX (170x170mm) board. A regular ATX PSU will be somewhere around 150x86x140mm. I want to build several "NuRetro" emulation RasperberryPi 3B, 4B or OW will be plenty of power for the things I'm considering. I also want to build one of those new XT machines so this case will also likely fit. The homebreww8088 is roughly 182x170mm for instance. I'll likely have to use a PicoPSU, especially considering where the drives will lay in the case.

Reply 49 of 81, by pan069

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Nice work!

I don't think that I have ever seen a floppy drive with a logo embossed on the bezel... 🤔 It is original or 3d printed as well?

Edit: I just see someone posting this Turbo/Reset button caps for 486 baby AT case Really, I have never noticed it before but I guess now its going to pop up everywhere, cannot unsee from now on 😆

Last edited by pan069 on 2022-09-28, 19:11. Edited 2 times in total.

Reply 50 of 81, by wiretap

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The 3.5" floppy drive has "Sony" embossed in it. It is an original part, not 3D printed.

My Github
Circuit Board Repair Manuals

Reply 51 of 81, by oso2k

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Mounting cubes are expensive. I think I might just print some cubes.

And the new photos look fantastic! I'm going to print the new shell tonight.

Reply 54 of 81, by oso2k

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It's coming....

Reply 55 of 81, by oso2k

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So I'm running out of PLA. A 1kg spool of Inland Bone White is not quite enough to print all 3 pieces. I'm going to have to test the Pause/Resume feature of my Guide II until the new spool I ordered comes in tomorrow.

Reply 56 of 81, by wiretap

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That's one thing I've never tried is pausing a print. Hopefully it can resume ok.

My Github
Circuit Board Repair Manuals

Reply 57 of 81, by oso2k

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Did a quick test and I'm getting layer shifting but not horribly. I plan to print a couple more shells anyways. And my PicoTurboXT (working name) is waking up.

Reply 58 of 81, by Veeb0rg

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Where does the board sit inside this thing?

Reply 59 of 81, by oso2k

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Veeb0rg wrote on 2022-10-01, 06:05:

Where does the board sit inside this thing?

For now there's standoffs. You could drill out the shell to mATX or miniITX or something else. Then you could use regular PC standoffs.