r/3DPPC

This is a first PC case I have ever designed. It started with me getting a smaller pc which I've put in Metalfish T40 (post here https://www.reddit.com/r/sffpc/comments/1t76dq3/bazzite_box_in_metalfish_t40/ ) and I thought that I could go smaller.

I didn't have any specific size goal in mind - I quite like the Beam Case so I decided to design something similar from scratch and it came out to 5.5L (panels excluded). The case is very rigid.

If you just want the link, here it is, I've included instructions.

https://makerworld.com/en/models/2990479-beaminnie-5-5l-itx-sff-sandwich-case

I have used 1010 beams instead of 1515 like in Beam Case because at this size the additional strength does not add much (I made a version with 1515 beams first, which remained a prototype). Once I figured I can fit 90mm fans up top when I get the smaller beams that is what I did.

This post is not about the build itself, because I am gonna post that to r/sffpc when I build my custom version of... a custom case. It's more about the designing process itself - maybe it will help someone who wants to start out.

I already have some CAD experience - been learning Autodesk Fusion since about a year, hobby projects etc, nothing too serious.

My biggest issue at first was getting STEP files of various PC components - I found and used https://redshiftproject.com/pages/design-resources - really grateful for this. The only modification I've made is to lengthen the GPU.

Makerbeam has STEP files for almost everything they sell - https://www.makerbeam.com/makerbeam-200mm-8p-black-makerbeam.html the link is in the product description - so I just loaded up and constrained the beams in Fusion.

Noctua has STEP files for almost all of their coolers as well - https://www.noctua.at/en/3d-cad-models

I have used 'Constrain Components' in Fusion to align the components parametrically when I created the base of the case.

After that it was a matter of doing a bunch of iterations, printing prototypes out of PLA, testing fitment, screw holes, adding rigidity etc.

I have to say that the biggest issue was the positioning of the PCI-E riser relative to the GPU - it took me quite a few tries to have everything lined up nicely.

I didn't use heat-set inserts because I am not a big fan of them - I understand the benefits of course, but making the screw holes a bit tighter and threading into them turned out to be very solid, especially since there is a lot of bracing in all of the elements I designed.

The downside is that you cannot just put the case together and disassemble it multiple of times because at some point the threads in the plastic will wear out. Personally, that is not a problem for me but I can see how someone might see it as a downside.

I've also tried a version with front mounted 60mm fans (can fit 3) but ultimately due to the PSU cable placement they were not doing anything so I scrapped that idea and instead added exhaust fans at the top.

What would I do different is probably get 18.5 cm or so riser instead of 20 cm cause there is a bit of a slack there, nothing too major and I don't mind it.

I might edit this post in the future to add some other tidbits that I'll remember in time, but if you have some questions about the design process lmk, I'll be happy to answer.

Hey all. I have some spare old parts that I wish to put in a 3D printed open frame case. I have searched on Printables and found something that looks good - minimum print time and can fit on a 220 x 220 build plate.
My specs that I want to fit are a micro ATX board and an ATX power supply.
I have found this (https://www.printables.com/model/1367342-micro-atx-open-frame-case) that looks good but it is for an SFX-L power supply.
Anyone have something similar that they can share?
Thanks!

Now in PETG too for Heavy Users

Update from the shop! We have inventory available for Legion Go cases (Gen 1 & 2).
We are also expanding our catalog to include new accessories to help round out your setup. Everything is 3D printed and tested for a perfect fit. We also have custom colors available if you want a different color than the ones we have available, just message me and we can work it out

We have custom colors available, visit the Shopify store too! Thanks

Shopify Store: https://gio3dprintshop-2.myshopify.com/

Etsy Store: https://www.etsy.com/shop/Gio3dprintshop?ref=shop_profile&listing_id=4464485745

Etsy Store for Mysterious897 (file) : https://www.etsy.com/listing/4461110167/legion-go-keyboard-case-3d-print-file?ls=s&ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=legion+go+case&ref=sr_gallery-1-3&organic_search_click=1&bes=1&dd=1&content_source=d6305121-6720-4dc4-a505-fce94f900ee1%253ALT606cc94a6a9777b8b398444f53f3e1dac451c53e&logging_key=d6305121-6720-4dc4-a505-fce94f900ee1%3ALT606cc94a6a9777b8b398444f53f3e1dac451c53e

220 mm by side, little bigger than original but not compromises. Compatible with wide range of coolers. SFX and Flex PSUs. Low profile and ITX GPUs up to 200mm long. Front and rear compatible fans for 120 and 140mm, depends on the PSU used. Here are the files https://www.printables.com/model/1766227-sff-mini-itx-steam-machine-case-v2-airflow

https://imgur.com/a/7Cue4ux

Looking for input (especially from electrical engineers) on my planned SteamOS build around the Lenovo ThinkCentre M90q Gen 6 and RX 9060 XT 16GB. Specifically, I want to make sure I have a good understanding of how everything works together electrically:

The build starts with a Lenovo ThinkCentre M90q Gen 6 - Intel Ultra 5 235T with 8GB RAM 256GB SSD

I am going to throw another 8GB stick of RAM into it for dual channel 16GB

And an Intel BE200 and antenna kit for WiFi 7 support

Now comes the fun part. Most people aren’t aware, but many of the Lenovo ThinkCentre models come with a proprietary PCIe x8 4.0 slot that can be adapted to a regular x16 slot, albeit at x8 speeds

I plan to use this adapter with a PCIe x16 4.0 riser Now comes the tricky part. Most people would likely power the Lenovo from its original proprietary PSU input. But I want to try to make this as compact as possible. The GPU already needs 12V external power, so I figured I can do the following:

• Buy HDPLEX 500W GaN PSU
• Use that to power the GPU. The Lenovo however expects 20V power, not 12V power. So I need a boost converter - Model # ATO-093620-240W
• This provides up to 12A at 20V, which even exceeds the 230W power adapter that ships with the computer. I am hoping to wire this up to the EPS 12V output of the HDPLEX. Considering 12A @ 20V is equivalent to 20A @ 12V, and the EPS 12V connector can do 7A @ 12V on each pin (7A * 4 pins = 28A @ 12V) I believe this shouldn’t be an issue. The Boost Converter will be wrapped in kapton tape and stuck in the void where a normal single slot LP card would sit (space is not needed due to using riser).

I have attached 3D models of the orientation I expect to connect everything in and a wiring diagram to boot. Please let me know if I have made any fatal errors in my design and I will be sure to make changes. I plan to create a custom 3D printed enclosure around all the hardware, waiting for real hardware before I fully design the exterior

My 3D design fits into a 76.7mm x 214mm x 185mm footprint for a total volume of ~3.075 liters including built-in PSU, even less volume than Steam Machine (3.8L). Yes, I know this machine is more expensive, but you could theoretically go for an older model of the M90q that costs less and the 500W PSU is a bit overkill. Can cut cost by using Lenovo power brick and going for something in the 250W range (which my design will also support). I will also be embedding a Steam Controller puck inside the PC. I also have plans to use HomeKit/Homebridge to have the Machine turn on my TV and switch to the correct input when the computer wakes up to emulate the on-off behavior of CEC as best I can.

Bring Up Process:

1. Boot Lenovo stock with stock power supply
2. Check compatibility with 2nd stick of RAM
3. Connect HDPLEX to GPU, connect both risers to Lenovo and GPU, run GPU test
4. Install SteamOS, validate all functionality
5. Remove RAM, wire up HDPLEX EPS to input of boost converter, wire output of boost converter Lenovo power input (either directly soldered or soldered to repurposed barrel jack., validate functionality
6. Take measurements of all parts laid out in compact format
7. Design 3D enclosure
8. Likely add finishing touches, i.e. front panel I/O, power button, way to easily remove Steam Controller puck
9. Print enclosure and assemble

Type	Item	Price
Mini PC	Lenovo Thinkcentre M90Q G6 Tiny PC Intel Ultra 5 235T 8GB RAM 256GB SSD	$601.99 @ EBay
Memory	Crucial 8GB (1x8GB) DDR5-5600 PC5-44800 262-Pin SO-DIMM	$75.00 @ EBay
Video Card	PowerColor Reaper AMD Radeon RX 9060 XT 16GB GDDR6	$469.99 @ Amazon
Power Supply	HDPLEX 500W GaN AIO	$175.00 @ HDPLEX
Lenovo Riser	New Genuine Lenovo ThinkStation P3 Tiny P360 Tiny PCIex16 Riser Card 5C50W32107	$69.95 @ EBay
PCIe 4.0 Riser	300mm PCIe 4.0 X16 Riser Cable	$38.99 @ Amazon
WiFi Card	WiFi 7 Wireless Card Intel BE200 NGW	$32.28 @ Amazon
WiFi Antenna	WiFi Antenna Tiny 6 7 8 for Lenovo ThinkCentre M90q	$14.85 @ EBay
12V to 20V Booster	ATO-093620-240W	$68.41 @ ATO
Prices DO NOT include shipping, taxes, rebates, and discounts
Total	$1,546.46
Generated by /u/YourMomTheRedditor 2026-06-29 02:25 EDT-0400

Thoughts? Any feedback is appreciated but please be gentle.

I'm trying to wall-mount my UniFi Cloud Gateway Fiber (UCG-Fiber) and my Flex 2.5G PoE 8-port switch (USW-Flex-2.5G-8-PoE) together on a single bracket, flush against the wall.

I found a listing on Etsy that's almost exactly what I want ... it holds both units stacked on one mount ... but it's designed to attach to a Leviton Structured Media Center (SMC), which I don't have. I just want to screw the same kind of combined mount straight into the wall with drywall anchors. I've attached an image of that Etsy result for reference.

I've found plenty of free single-device wall mounts for the UCG-Fiber on Printables and MakerWorld, but nothing that holds the gateway and the Flex switch together as one piece.

A few details in case they help anyone:

• UCG-Fiber: 212.8 × 127.6 × 30 mm
• Flex 2.5G PoE: 212.9 × 99.4 × 33.5 mm
• They're basically the same width, so they line up nicely stacked vertically.

Two questions:

1. Does anyone have (or know of) an STL for a combined UCG-Fiber + Flex 2.5G PoE wall mount that goes directly on the wall?
2. If not, any tips on how I could pull this off? I have zero 3D modeling skills, so I'm open to anything ... remixing two existing single-device mounts into one, someone who takes commissions, or a totally different mounting approach.

Thanks in advance!

https://makerworld.com/en/models/2941435-bc-250-case-nexus?from=search#profileId-3323470

This case is designed for the ASRock BC-250 board and a Flex ATX power supply. Most parts should print without supports. The only parts that should need supports are the fan faceplate bracket and the handle positioning dowels.

Parts Needed

2 × Thermalright TL-8015 80mm fans

1 × 120mm fan, any brand

1 × ESGAMING 500W Flex ATX power supply

1 × 12mm latching push button

1 × 3-way PWM fan splitter

M4 × 6mm brass heat-set inserts

M4 screws

Assembly Notes

Install the M4 × 6mm brass heat-set inserts into the printed mounting points before final assembly. Use M4 screws to attach the panels, brackets, fans, and other mounted parts.

The two Thermalright TL-8015 80mm fans mount to the front fan area. The 120mm fan mounts on the side using the printed fan shroud. The fan shroud is designed to be friction fit and should provide enough clearance for most 120mm fan thicknesses.

Use the 3-way PWM fan splitter to connect the two 80mm fans and the 120mm fan to a single fan header.

The BC-250 board will need the metal bracket removed from the end of the card before it can be mounted into the case. Once removed, the board should slide into position and attach using the case mounting points.

The ESGAMING 500W Flex ATX power supply mounts inside the case and provides power for the BC-250. The 12mm latching push button is used as the power switch.

Test-fit everything before tightening the screws fully. Because this is a 3D printed case, minor sanding, trimming, or tolerance adjustments may be needed depending on your printer and material.

Shifted my son PC into this case!

Thermal is very good with cinebench and it’s around 60 degree.

5700x
4060m
Axp12067 using the 120 extreme fan from thermalright
32g ddr4
A520i DC powered board

These are PC cases that are stackable up to 5 pc's. They're intended for old skool lan parties and are optimized for table space. I wanted them to have the smallest volume and floor space while still housing a matx, 2x 120mm fan, an atx powersupply and a full length dual slot gpu. The yellow box in the bottom is to house the HDD and the Network Switch.

It's currently not fully finished. I'm optimizing it a bit more and finalizing the design. I'm planning to print the prototype later this week. And after that do another optimization pass and start producting +- 12-18 of these.

Before you guys worry about cooling it will house mostly socket 775 hardware with some older graphics cards. I even have Slot 1 stuff that I might move in there. Mostly Win98 - Winxp hardware.

Dimensions of the finished case are:
Length = 300mm
Width = 274mm
Height = 190mm

Total volume: 15,6 liter

Please forgive any jankiness and bad cable management. This is only the prototype. There are many changes already performed on the digital model that are not represented here. Wood panels will eventually be on each face.

This is my first time designing a computer case and wanted to share my progress. Plan is for a Bazzite/Steam machine that would look nice in a family room. So I turned to laser cut veneered plywood panels and designed around that idea. It was heavily inspired by the Terra. Layout is mostly the same. Its depth and width are almost the same but it is taller to accommodate two 120mm exhaust fans.

At the moment it is designed for printers that are capable of 350mm like the Bambu H2D. The wood panels are from extremely common 300mmx300mx3mm veneer plywood. My hope is that people can make their own panels to customize to their tastes.

I do not sell models.

Specs are: Ryzen 7600x3d, Gigabyte A620I, Thermalright AXP90-x53, Asus Sfx-l 850w, Gskill 2x16GB 6000 CL36-36-36-96, and a Giagbyte 9070xt.