9.5L Mini-ITX Small Form Factor PC Open Frame

This is a little project I've been working on for a few weeks. I was inspired by OCPC Mini/Hydra and Motif Monument builds, but there were a couple issues that drove to me to design my own. I was close to pulling the trigger on the Hydra, but I didn't like how the rear-mounted GPU required a twisted riser cable. The Monument is beautiful but it would have been upwards $400 after shipping, import, etc.

There was a lot of "new" for me. First time using CAD (FreeCAD), 3D printing parts, assembling cables (huge pain), and using Ryzen hardware. I had to iterate a few times on the design, and there's lots of room for improvement, but overall I think it turned out well.

I had to print the frame in multiple pieces due to the bed-size limitation of my Bambu A1 Mini (180x180x180mm). A Mini-ITX board is 170x170mm so I was cutting it close. The black plastic is PETG-CF and white is matte PLA. Why PLA? I ran out of PETG-CF and it's $30 a spool :/ The frame is very rigid and should have no problem supporting a larger cooler or GPU.

Final size of the frame (exclusive of wire and antenna): 180mm width x 160mm depth x 330mm height. It's 9.5L (yes I know volume doesn't make much sense for open frames).

Here's the components I selected:

• AMD Ryzen 5 7600
• AMD Wraith Stealth cooler
• Gigabyte A620I AX
• Corsair Vengeance RGB 16GBx2
• GeForce RTX 4060 OC Low Profile
• WD_BLACK SN770 500GB
• Cooler Master V750 SFX 750W <- smallest wattage I could fine
• 12V 12mm LED push button
• 35ft 4mm DarkSide HD Cable Sleeving - Gold II
• 35ft 4mm DarkSide HD Cable Sleeving - Gun Metal
• 70ft 16 AWG wire
• M3 and M4 self-tapping and machine screw kits off Amazon

Total cost including PC components, filament, wire, and sleeving: approx. $950 USD.

M4 machine screws bolt the motherboard plate to the supports. Otherwise M3 self-tapping screws mate other pieces together. I suggest buying a M3 and M4 kit with washers. I can't exactly remember what lengths I used, but try to get an assortment up to 20mm.