Ender 3 MAX Front Electronics Box

prusaprinters

<p>This is a remix of <a href="https://www.thingiverse.com/vinceformosa">Vince Formosa</a>'s Ender 3-MAX electronics box: <a href="https://www.thingiverse.com/thing:4916320">https://www.thingiverse.com/thing:4916320</a></p><p><strong>Description</strong></p><p>The original box is intended to clean up the look of your 3d printer, by putting your electronics in a box. The components he (and I) used are as follows:</p><ul><li>1x SKR Mini E3 V2.0 (has the same screw holes as creality boards)</li><li>1x Raspberry Pi 3+ (any Pi 3 should work)</li><li>2x LM2596 Buck Converters, check the pictures of Vince on thingiverse which one he bought.</li></ul><p><strong>Improvements I made</strong></p><ul><li>Reduced the need of supports drastically<ul><li>I did so, by using a chamfer for the V slotting instead of the accurate profile of the extrusion</li></ul></li><li>Redrawn the the V slotting in the center to be more accurate. &nbsp;See the video below how good it now fits, you can just easily slide it in:</li></ul><figure class="media"><oembed url="https://youtu.be/iCpC-S1858Y"></oembed></figure><ul><li>Increased electronics holes to 4mm and the wall size to 2mm.<ul><li>I really like threaded inserts instead of screwing into the plastic. I use M3 threaded inserts by Ruthex: <a href="https://www.amazon.de/-/en/ruthex-Threaded-Insert-RX-M3x5-7-Ultrasonic/dp/B08BCRZZS3">https://www.amazon.de/-/en/ruthex-Threaded-Insert-RX-M3x5-7-Ultrasonic/dp/B08BCRZZS3</a></li></ul></li><li>Added some chamfers at the back of the Pi side for the electronics cable</li></ul><p><strong>Instructions</strong></p><p><strong>Print the box</strong></p><ul><li>Use supports, change the overhang threshold to 20 and slice again. This is how it should look like:<img src="https://media.printables.com/media/prints/244843/rich_content/0fd74eee-1805-46f7-a57e-bb0b25e2cf6b/prusa-slicer_zoyevqat6l.png#%7B%22uuid%22%3A%22908207ff-6f76-40ea-aa6a-4940de0a2fb8%22%2C%22w%22%3A1390%2C%22h%22%3A899%7D"></li><li>You can use support enforcers to remove the unnecessary supports in the slots for the IO of the electronics (it works by bridging)</li><li>I printed it at 0.3mm layer height, 10% infill.</li><li>If your bed is too small, you can split the model in prusa slicer and print both sides separately.</li></ul><p><strong>Print your lids</strong></p><p>Vince designed some awesome lids that still work with this remix. You have to print two of them to close the box.</p><ul><li>Vent cover (I used this for the Pi side)</li><li>40mm Fan Cover</li><li>4020mm Fan Cover</li><li>80mm Fan Cover (I used this for the mainboard side)</li><li>92mm Fan Cover</li></ul><p>Also print the 4040 extrusion cover to cover the extrusion on the left and hold the box in place. The right side is being held by the display mount.</p><p><strong>Put it all together</strong></p><ul><li>Put the M3 threaded inserts into the box</li><li>Flip the printer on the left side</li><li>Unscrew the display</li><li>Unscrew the original mainboard housing</li><li>Unscrew the Y axis belt fastener</li><li>Unscrew the mainboard from the original housing</li><li>Now you should be able to access the 3 extrusions to slide the box in (this is the step from the video above)</li><li>Slide the box in while holding the mainboard with its cables where it should go (this can be a bit tricky!)</li><li>Once the box is all the way in, you can start by screwing in 2 screws into the mainboard, so it stays in place.</li><li>Do the cable management now. Make sure the height of the cables is not too high. There will be a fan on top of it which can block the fan.</li><li>If the cabeling is good, you can screw in the rest of the screws</li><li>Screw on the 4040 cover on the left side</li><li>Screw on the display on the right side</li><li>At this point, you can flip the printer back on its feet</li><li>Tighten the Y axis belt (use a screwdriver to tension the belt, while screwing in the screws. If you never did this, you can watch a youtube video)</li><li>Done!</li></ul><p><strong>Remember to check that everything is still working before your next print. If you were not careful, you might have unplug a cable or damaged it.</strong></p><p>Have fun!</p>