Magnetic Pi Camera Corner Mount for 2020 Extrusion

prusaprinters

<p><i><strong>Introduction:</strong></i></p><p>Minimal setup for surveillance of any printer using a 2020 extrusion as frame.</p><p>It is rotated 45° from the extrusion it's mounted on, so it can look at your build plate/print.</p><p>It uses small screws and embedded magnets for alignment and attatchment.</p><p>I made this for my VORON 2.4.</p><p><i><strong>______________________________________________________________________________________________________________</strong></i></p><figure class="table" style="height:178.891px;width:714px;"><table style="background-color:rgb(255, 255, 255);border:3px ridge rgb(0, 0, 0);"><tbody><tr><td style="background-color:rgb(250, 104, 49);border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><strong>HARDWARE</strong></td><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><i>Q.ty</i></td></tr><tr><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><strong>FHCM2x16[mm]</strong> flat head screws for the camera housing parts.</td><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><i><strong>4x</strong></i></td></tr><tr><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><strong>M3X8[mm]</strong> BHC or SHC screw to fix the mount to the frame.</td><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><i><strong>1x</strong></i></td></tr><tr><td><strong>M3 T-nut</strong> for screwing the mount to the frame. Roll-in or hammer head.</td><td><i><strong>1x</strong></i></td></tr><tr><td><strong>5x2[mm] Magnets</strong> for Back Housing and Mount</td><td><i><strong>6x</strong></i></td></tr><tr><td><strong>Foam Tape</strong> to protect the ribbon cable</td><td><i><strong>-</strong></i></td></tr></tbody></table></figure><p>________________________________________________________________________________________________________________</p><figure class="table" style="height:144.125px;width:714px;"><table style="background-color:rgb(255, 255, 255);border:3px ridge rgb(0, 0, 0);"><tbody><tr><td style="background-color:rgb(250, 104, 49);border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><strong>Slicing Instructions</strong></td></tr><tr><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><i><strong>Material:</strong></i> Recommended ABS/ASA or better</td></tr><tr><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><i><strong>Quantity:</strong></i> <i>1x</i> Mount; 1<i>x</i> Front Housing; 1x Back Housing.</td></tr><tr><td style="border:1px solid rgb(191, 191, 191);padding:0.4em;vertical-align:top;"><i><strong>Layer Height:</strong></i> 0.2 [mm]</td></tr><tr><td><i><strong>COLOR CHANGE:</strong> at 2,6 [mm] for embedding magnets, for Mount and Back Housing.</i></td></tr></tbody></table></figure><p><i>I recommend printing the mount first, since it takes longer, it's best to get it right the first time.</i></p><p>________________________________________________________________________________________________________________</p><p><i><strong>Embedding Magnets:</strong></i></p><p>Start your print, then make a pile of 6 magnets and take 3 out one at a time, placing them in their holes all in the same orientation at color change. Then resume and let the print finish.</p><p>When it's finished, DO NOT yank it off the plate. Let it cool and detatch, otherwise the magnets will damage the single layer they're sitting on.</p><p>Once you have your mount, take the remaining 3 magnets and attatch them to the newly created 3 spots on the mount , then start the back plate print.&nbsp;</p><p>Keep the mount handy and when it's time, take the 3 magnets off the mount and before inserting them in the holes, FLIP them. Swap left magnet with right magnet too.</p><p>If all goes well, when both magnetic parts are finished they should couple without issues.</p><p>________________________________________________________________________________________________________________</p><p><i><strong>Assembly:</strong></i></p><p>Take your ribbon cable and protect it with some sort of tape. I used KAPTON, as there was no way of inserting foam tape due to clearance, but foam might be better. (I later added foam in the last part of the cable).&nbsp;</p><p><i><strong>---FOR VORON 2.4: &nbsp;</strong>Try to insert it through the deck panel &nbsp;directly, or via one of the Z belt holes. If you can't, try to make your way in by using some sort of spacing tool.</i></p><p><i>If you still can't, use the spacing tool to insert some sandpaper between the estrusion and deck panel, and make some space.<strong>---</strong></i></p><p>Secure the ribbon cable into the Pi Cam, and palce the camera in the Front Housing.&nbsp;</p><p>Sandwich it between the front and back housing, then thread in the screws until the heads are flat. It's normal that the screws come out of the housings.</p><p>________________________________________________________________________________________________________________</p><p><i><strong>Mounting:</strong></i></p><p>You can now screw the mount to the frame, holding it on with a T-nut. I recommend using a hammer head T-nut in case you want to remove the whole thing, keeping your frame clear. Don't fully tighten it yet, you'll be adjusting the height once the camera is on.</p><p>I used some foam tape between the mount and the frame in hopes of dampening some of the vibrations that could transfer through to the camera.</p><p>Now, Take your camera assembly and let it attatch to the mount. Adjust tension on the ribbon cable. It shouldn't be straight, just a little inward curve (I'll eventually make a Z belt cover for VORON 2.4 which has a dedicated slot for the cable).</p><p>________________________________________________________________________________________________________________</p><p><i><strong>Adjusting &amp; Testing:</strong></i></p><p>Connect to your Pi, test that the height is correct, adjust abd tighten if needed, then set the focus with the provided Pi cam tool.</p><p><strong>DONE!</strong></p><p><i><strong>______________________________________________________________________________________________________________</strong></i></p><p>Feel free to <strong>post your makes</strong>, feedback is highly appreciated.&nbsp;</p><p>&nbsp;</p><p>TO-DO:</p><ul><li>Z belt guard with a spot for the ribbon cable;</li><li>Alignment slot on the mount piece;</li><li>Options for other Pi Camera lenses;</li><li>Reversed orientation mount for top to bottom view.</li></ul><p>&nbsp;</p><p>Loosely based on <a href="https://github.com/VoronDesign/VoronUsers/tree/master/printer_mods/richardjm/picam-corner">this mod</a> by RichardJM on GitHub.</p>