Ender 3 Pro rear PSU mount

thingiverse

I positioned my Power Supply Unit (PSU) in the rear area between the feet under the Y-axis. This design offers the following advantages: - A ball screw spindle can be installed on both sides. - The plug for the power supply does not protrude. - The space in the rear area is used sensibly. The downside if only these changes are made: - The cables from the mainboard after the cross brace are kinked sharply. - The cable routing can influence existing optimizations (e.g. cable drag). Since I didn't want to damage the original components, I developed this design. It consists of the following parts: - Part (01) cover for the opening of the old plug with switch - Part (02) A small PSU bracket - Part (03) A large PSU bracket (with a hole for the cables) - Part (04) New angled housing for the plug with switch However, additional components are also required to cover the ventilation slots. This can prevent contaminants from accidentally falling into the power supply unit and possibly causing problems. The cover for the fan "Part (06)" is not an own design, it is only integrated into this project for the sake of completeness. If desired, the cover can of course also be downloaded from the designer. - Part (05) cover ventilation slots PSU - Part (06) cover fan <br> <b>Printing:</b> Just to get a feel for how long the print time is and how much PLA was used: Part (01): 0h 28m, 6g Part (02): 1h 57m, 26g Part (03): 6h 39m, 79g Part (04): 3h 37m, 46g Part (05): 0h 52m, 10g Part (06): 3h 29m, 37g <br> <b>Part (01) print - Cover for opening the position of the old plug with switch:</b> A simple cover according to the contour of the old plug with switch, whereby the old screws can be used. Infill: 100% Support: no <br> <b>Part (02) print - Small PSU Bracket:</b> Here everyone has to decide for themselves in which position the small PSU bracket should be on the printing plate. It has to be decided whether the print quality is decisive or how easily the support can be removed. It is always difficult to remove the support under the V-profile holder. Infill: 100% Support: yes Support-Type: lines <br> <b>Part (03) print - Large PSU Bracket:</b> This situation is like "Part (02)", quality of the surface or simply removing the support. It is always difficult to remove the support under the V-profile holder. For me it took about 30 minutes in the vertical position. Infill: 100% Support: yes Support-Type: lines <br> <b>Part (04) print - Housing for the plug with switch:</b> I did not make any holes in the design in the box, as it would have created additional difficulties in removing the support in my printing position. Furthermore, the holes for the screws can be slightly higher or lower depending on the connector variant. But you can simply mark them and drill them into small holes. I then used self-tapping screws myself. I just measured the edges so that I can use the deburrer to make a perfect fit (if necessary). This means that neither the connector nor the housing wobbles in the large PSU bracket. Infill: 100% Support: yes Support-Type: lines <br> <b>Part (05) print - cover ventilation slots PSU:</b> This is a simple cover so that no parts, dust or anything else can fall directly into the power supply unit. I do not like the variant in which the ventilation slots are downwards (to the floor), in which I don't know what everything has been deposited there and is sucked into the power supply. Infill: 100% Support: yes Support-Type: lines <br> <b>Part (06) print - cover fan:</b> This is my remix of the fan cover: https://www.thingiverse.com/thing:4669480 I've also uploaded a mirrored version. I think the mirrored one is for the "Ender 3 Pro", and the other one for the "Ender 3". But please compare with your built-in PSU. But there are also many other corresponding covers that can be found in Thingiverse. Infill: 20% Support: yes Support-Type: lines <br> <b>Annotation:</b> Please perform electrical activities with caution. The safety rules must be observed. The most important thing is always switch off and unplug beforehand, never work under voltage! If you are not familiar with the electrical system, appropriate specialists are to be called for help! Everyone is responsible for this. The 3D model in the pictures are from a Creality Ender 3 and have adapted the necessary dimensions for this project to my Creality Ender 3 pro. When removing the support, I always first pierced the edge between the support and the part with the carpet knife and cut along the edge as far as possible (without cracking the plastic). Then I stabbed the support (lines) in the problem areas with the carpet knife and tried an additional attack point for e.g. to give a pair of pliers. In case anyone is wondering, what the white cables are, in my version I connected LED lighting to them. The components can be found under my designs. LED Strip: - Light Bar Ender 2020 Remix v2 (LED - light mount, holder) with locking hook https://www.thingiverse.com/thing:4558711 - Light Bar Ender 2020 Remix v1 (LED - light mount, holder) no locking hook https://www.thingiverse.com/thing:4084145 LED Strip switch-box: - V profile 2040 switch box with converter mount LM2596 (LED – light) https://www.thingiverse.com/thing:4656452