Here is my first attempt at a printable PC case! 'LittleBlock' it's a compact, simple to print, and easy to assemble PC case that I intended to be modular and easily customizable. all of the panels can be easily swapped or removed without any fasteners. It is currently more limited in component compatibility than I would like, but I plan on adding an optional bracket to adapt a standard ATX or SFX power supply *ATX Adapter Now Added* and also a bracket to mount a discreet graphics card on top with a PCIe riser so this can be used for more intensive workloads and gaming.
To simplify the download process, I've added a folder with all files required for the Base LittleBlock - (LittleBlock Standard Complete Chassis)
The main Chassis structure is quite strong and is comprised of only a few simple components. ONLY 4 FILES ARE NEEDED for a minimal open air build! The Chassis Base, Chassis Top, Motherboard Bracket, and PSU Bracket are all that is needed for a functional PC case!
The panels, including the top cover panel, all slide into groves and are very easy to swap.
It even includes an optional folding carry handle for easy portability!
I printed with cheap PLA at .2mm layer height and have had no issues.
*Only the Left Sample Panel and the Motherboard Bracket should need supports*
STEP Files and blank panels are included to encourage customization
(No guarantees that they will be easy to edit however, I'm still learning)
Full Case Dimensions:
- 23.5mm depth x 18mm width x 20mm height
or - 9.25in depth x 7in width x 8in height
In addition to the printed parts you'll need the following hardware:
- 6x M3x20mm screws (4x for chassis top and 2x for top handle)
- 4x M3 washers for top handle
- 8x M3x8mm screws to fasten motherboard and power supply brackets to chassis
- 4x M3x10mm screws for SSD and wire cage (this is optional)
- 3x M3x4mm or M3x6mm screws to fasten the power button and LED (Also optional)
- 18x M3 Nuts
- 2x M3x8mm screws and 2x M3 nuts for optional power button bracket
(check 5-30-2025 update)
- 4 Main Board M3-5x7 screws for motherboard (M3 screws from kit will work in a pinch)
- 2 6#-32x6 Chassis screws to anchor power supply
- No motherboard standoffs or heat inserts required!
- I recommend getting a power button and LED
Link to the [M3 screw set I used] and a similar [Power Button]
Tools used to assemble the case:
- 2.5mm hex driver/wrench
- #1 Philips screwdriver
PC Specs as shown:
- Motherboard: ASRock B550M-ITX/AC
- Processor: AMD Ryzen 5600G
- Cooler: Stock AMD Wraith Spire
- Ram: 32gb Hyperx DDR4 3000mhz
- power supply: TFX 250 watt PSU from the days of windows vista
- Storage: 2tb m.2 SSD
UPDATES:
- 5-30-2025
- Added STL file of “Complete Open Chassis” to help visualize assembly
- Added Power Button Bracket STL and STEP files that can be fastened to the SSD and Wire Cage Bracket with adhesives or 2x M3x8mm screws and 2x M3 nuts (as shown in "Complete Open Chassis” STL) so that a power button and power LED can be mounted without needing any panels if desired
- 6-1-2025
- Added (untested) STL and STEP files to adapt an ATX PSU into the bounds of the LittleBlock Chassis (PSU of up to 150mm in length as default, can be modified in STEP file) This doesn't leave much space for the cables unfortunately.
Securing the Chassis Base to the Top:
- This may be an odd way to connect the Chassis but it's quick, Simply slide one M3 Nut all the way to the bottom of the corner slot in the Chassis Top shown below then thread one of the M3x20 screws all the way through. (Screws as short as M3x12 may be used in a pinch)
Installing the power button and LED:
- The Sample Front Panel file already include slots to install a power button and LED, start by positioning them near the correct holes and testing fitment (try using a small file to remove material if the components don't quite fit)
- Next simply insert the components one at a time and use M3 screws to lock the components in place (the screws will create their own threads as they are screwed into the holes)
- Here are schematics for recreating this system on your own custom panels
- This is the power button slot, the orange area should be extruded 8mm, and I recommend extruding the circle inside the orange area an additional 1.5mm to make it a through-hole to the other side of the panel.
- This is the LED slot, again I recommend extruding the orange areas 8mm then also extruding the center circle until it becomes a through-hole to the other side of the panel. I also added a chamfer the edge between the 5.1mm and 6.5mm circles to make it easier to print and fit the LED bulb shape better
Installing the left panel so that the wires are shown externally with compatible components:
- Step one, slide the panel most of the way down, making sure the wires are in reach
- Step two, slip the wires in the slots on each side and press the wires into the channel if needed (zip ties can optionally be put in the slots to hold the wires in place)
I hope you find these designs useful, even if you decide against printing the whole Case
If you would like to view and support my works, please visit my profile! (A donation link can also be found in my bio) Thank you!!
THEscurge
