spiggytech Monolith Open Chassis (FlexATX PSU Version)

prusaprinters

<p><strong>This is a work in progress</strong></p><p>The project started as a concept for a single print unibody open chassis. As I met the limits of my Prusa MK3S, I realized it was not possible and broke down the design into parts. &nbsp;</p><p>The enclosed design includes two types of motherboard trays of your liking. You can print the normal one that is a smaller profile. Or you can print the one with a cool carry handle.</p><p>For the SFX version, <a href="https://www.printables.com/model/306702-spiggytech-monolith-open-chassis-sfx-psu-version">click this link.&nbsp;</a></p><p>&nbsp;</p><p><strong>What you will find in this packet:&nbsp;</strong></p><ul><li>Base that houses your PSU</li><li>Backplate for your GPU/Mobo IO</li><li>GPU Mounting Bracket</li><li>Mobo Tray without carry handle</li><li>Mobo Tray with a carry handle (optional)</li><li>Carry Handle (optional)&nbsp;</li></ul><p><strong>The following materials will be required:&nbsp;</strong></p><ul><li><a href="https://a.co/d/4GQL7TJ">6mm Standoffs</a></li><li><a href="https://a.co/d/htfgM0G">M3x6mm Heat Inserts</a></li><li><a href="https://a.co/d/dCvP5dy">M3 Screw kit</a>&nbsp;</li><li><a href="https://a.co/d/5ymqT5i">16mm Button</a>&nbsp;</li><li><a href="https://a.co/d/3DLCAbJ">GPU Riser Cable</a></li></ul><p><strong>Here is a breakdown of components:</strong></p><p>Motherboard Tray</p><ul><li>4x Heat Inserts for Mobo Standoffs</li><li>4x Standoffs for Mobo</li><li>2x Heat Inserts for GPU Standoffs</li><li>2x Standoffs for Mobo</li><li>6x M3x6mm screws for all the standoffs</li><li>8x Heat Inserts for the back edge and bottom edge</li><li>4x Heat Inserts for the carry handle version</li></ul><p>PSU Base</p><ul><li>4x Heat Inserts</li></ul><p>Backplate</p><ul><li>8x M3x8mm screws</li></ul><p>GPU Mounting Bracket</p><ul><li>2x Heat Inserts</li><li>1x M3x6mm for mounting GPU</li><li>2x M3x10mm for mounting the bracket to the backplate</li><li>2x M3 nuts for securing the bracket to the backplate</li></ul><p>Carry Handle</p><ul><li>4x M3x10</li></ul><p><strong>Build Instructions:</strong></p><ol><li>Put the heat inserts into their respective components. I would start with the mobo tray because it uses 14x of those heat inserts. If you are using the carry handle version, install 4x more.</li><li>Attach 6x standoffs to the mobo tray. If you are using the carry handle version, install that as well with 4x M3x10 screws. The handle is directional, so pay attention.&nbsp;</li><li>Mount the PSU Base to the Mobo Tray with 8x M3x6mm screws</li><li>Mount the backplate and 8 screws.</li><li>Install the GPU bracket to the&nbsp;</li><li>Plug your necessary cables to the PSU and slide it into the housing. This is important because it will be difficult once the 16mm buttons are installed.&nbsp;</li><li>Secure the PSU to the backplate. You may need 4x longer #6-32 x1/4in screws because the backplate is chonky. I was able to complete the build with standard PSU screws.&nbsp;</li><li>Insert your 16mm button(s) into the PSU Base</li><li>Assemble your motherboard (RAM, CPU, SSD, and cooler). Attach mobo to the chassis</li><li>Attach your GPU riser to the mobo. Now attach the GPU to the Riser and gently finagle into the backplate.</li><li>Secure the GPU riser to the Mobo Tray</li><li>Screw down the GPU to the GPU bracket. Then tighten down the GPU bracket to the backplate.&nbsp;</li><li>Hook up the cables. Boot on the machine.&nbsp;</li><li>Let me know how you like it. If you have questions or concerns, I can be reached here or through the reddit page.&nbsp;</li></ol><p><strong>Build Notes:</strong></p><p>Please use 4 layers of wall for these prints so the heat inserts have more meat to grab.</p><p>For nifty color like mine, you can change filament colors at any time. I like the cookies &amp; cream color as it matches the components to my PC.&nbsp;</p><p>I designed this chassis with <a href="https://www.silverstonetek.com/en/product/info/power-supplies/FX600Platinum/">in-line 150mm length FlexATX PSUs in mind</a>. If you use a 170mm+ length modular FlexATX PSU like the GEEEK custom modular, you will lose the position for the power button. I am working on a fix for that so you can use your 170mm+ PSU. Keep in mind, I have not tested the design with any FlexATX PSU with 90 degree connectors. If you want to try it and report the findings to me, I can make accommodations to the design.&nbsp;</p><p>You can use any GPU riser cable that matches the SGPC design. I recommend that length, but you can always go ~10mm longer.&nbsp;</p><p>I do not recommend using a chungus 3-slot+ GPU… The case will probably fall over. ASUS Pheonix RTX 3060 should be ok because it's short.&nbsp;</p><p>I also do not recommend using a chungus of a CPU tower cooler for the same reason. The case will probably fall over. Tallest one I've used is an AMD Wraith Prism, but my go-to is the AXP90-53x Full Black.&nbsp;</p><p>Updated 11/2/2022:&nbsp;</p><ul><li>The backplate IO area is now bridgeless to simplify the GPU install procedure</li><li>The GPU bracket screw area is countersunk slightly to accommodate the screw heads</li></ul><p>Updated 11/3/2022:&nbsp;</p><ul><li>Motherboard Tray (v1.1) now include cable tie points.&nbsp;</li></ul>