Ender 3 Pro low-profile rear mount for Meanwell PSU

prusaprinters

<h3>Updates</h3><ul><li>03/2022: Changed two screw holes on the switch side part to slotted holes (v2.1). This allows you to tune the fit and tension during assembly.</li><li>04/2021: Added a "MIRRORED" version, which allows you to flip the PSU around and have the switch point to the left side of the printer (when viewed from the front). I have not testet this variant myself, but there are makes which show it working just as well as the regular version.</li><li>03/2021: Overall redesign (v2). Increased wall thickness from 1.2 (3 layers) to 2.15 mm (5 layers), added vents to switch-side part (optional), tweaked some measurements and improved printability and rigidity.</li><li>09/2020: Added a grounding wire to the PSU. This is recommended, since the printer frame looses any contact to ground when using this mod.</li><li>06/2020: The original profile caps didn't stick anymore, so I desgined tightly fitting <a href="https://www.prusaprinters.org/prints/145444-4040-aluminium-profile-cap-for-ender-3-pro-tight-f">replacement caps</a>. They work perfectly with this PSU mount mod.</li></ul><h3>Description</h3><p>Rear power supply mount for the Meanwell PSU on an Ender 3 Pro. The mount does not require any additional parts, when using the one-sided "back side 1 screw" bracket. It slots in to the profiles and is fixed using the stock Creality profile end caps. Optionally, the two-sided "back side 2 screws" bracket can be used for a more rigid installation.</p><p>The main "switch side" part is available with or without top vent holes. On the vented part, there is an integrated touch guard below the vent, which prevents you from - you know - accidentally <i>touching</i> the PSU terminals or PCB with something like a screwdriver.</p><p>When installing the mod, it can be helpful to rotate the Y-stepper by 90° so the stepper connector points to the front of the printer and the cable isn't squished between the stepper and the PSU.</p><p><strong>Advantages:</strong></p><ul><li>No additional parts required<br>(but grounding wire recommended)</li><li>Makes space for dual Z-axis setup</li><li>Low-profile, no restrictions to any axis movement</li><li>Does not require additonal space<br>(sticks out no further than the stock heated bed cable strain relief)</li><li>More rigid than the stock PSU cover</li></ul><p><strong>Common sense hint:</strong> A printer with this mod should not be put on high pile carpet or very dusty surfaces - your PSU won't like that. Also, airflow to the PSU may be improved if you use taller feet on your Ender.</p><p>&nbsp;</p><h3>Print Settings</h3><p><strong>Printer Brand:</strong></p><p>Creality</p><p><strong>Printer:</strong></p><p>Ender 3 Pro</p><p><strong>Rafts:</strong></p><p>No</p><p><strong>Supports:</strong></p><p>Yes</p><p><strong>Resolution:</strong></p><p>0.24 mm</p><p><strong>Infill:</strong></p><p>20%-25%</p><p><strong>Filament:</strong> Generic PLA</p><p>Black</p><p><strong>Notes:</strong></p><p>Print the "switch side" standing upright and the "back side" laying flat. Wall thickness is 2.15 mm on all sides.</p><p><strong>Print settings (some are Cura-specific):</strong></p><ul><li>Resolution 0.24 mm</li><li>Line thickness 0.42 mm (0.425 should work, but not tested)</li><li>4 wall lines, 5 top/bottom layers</li><li>20%-25% infill</li><li>Set "Fills gaps between walls" to "Nowhere"</li><li>Reduce outer wall flow to around 95% and overall flow to 95-98% for good dimensional accuracy</li><li>Enable supports and support interfaces</li><li>Set support angle to 61° or higher (to avoid supports in the vent holes)</li><li>Add support-blockers to all screw holes and the oval hole for the XT60 connector</li><li>Set support density to 15-20%</li><li>I recommend the "Zig Zag" support pattern</li><li>Place your Z-seam manually on a hidden corner of the parts for better surface finish</li></ul><p>Category: 3D Printer Parts</p>