rear column for ender 3 with rear electronics case

thingiverse

One thing that really annoyed me since I installed the rear electronics case was the unruly cable tube scraping against the print bed. The idea was to have something tall to hold the tube high up in the air.\r\nAnother question I've been pondering was how to mount a camera in the back of the printer. Because from the back you get the best view at the print nozzle when blTouch, the part cooler, the hot end cover and possibly a short LED strip all block your line of sight for an unobstructed view from the left, right and front of the printer.\r\n\r\nThingiverse search found me nothing ready to use with the Ender 3 but I still gathered a few useful elements. This is a remix of those elements from different sources.\r\nFreeCad source files are included.\r\n\r\nBasically it's a printed 20x20 extrusion extending out at the rear end and another, taller one going vertical from there. On top there's a bow to hold the cable tube in place.\r\n\r\nI couldn't find a suitable cam mount yet so this may be my next project.\r\nUpdate: YACE - Yet Another Cam Enclosure https://www.thingiverse.com/thing:3984749\r\n\r\n\r\nHow to build:\r\n\r\nThe connector.stl is screwed to the middle of the rear electronics case with a single screw there. It's claws are pushed onto a piece of extrusion.stl, print about 75mm for this. \r\nDon't push it in too far! You need space to tighten the rear case screw.\r\n\r\nPrint another 200mm of extrusion, this is the column. It is fixed to the bottom extrusion with a print of corner_single.stl.\r\n\r\nThe corner needs 2 screws in addition to the snaps to be stable, slip a nut into the extrusion channel to hold the screw. Fixing those screws is a bit tricky as the nut will turn with the screw unless you hold it with another hex key or tweezers.\r\n\r\nOn top the semi globe halbKugel.stl is fixed loosely by the pin.stl pushed 2mm in the hole from the flat side, the pin goes easily into the hole of the extrusion. On the other side of the semi globe the middle pin of bogen.stl fits into the hole. As a result the top rotates easily.\r\n\r\nTo print the extrusions a brim is helpful, 8mm worked for me. I had a 2mm brim for the pin too.\r\n\r\n\r\nUpdate\r\nAfter some evaluation:\r\n- Is it worth the trouble? \r\n\r\nOn the pro side:\r\n- it turned out 'stable' on the first try\r\n- it does keep the cable duct in place, at least for prints with limited height\r\n (would need a bow with steeper edges for prints with heights exceeding 15 cm)\r\n- it does make it easy to fix a cam like https://www.thingiverse.com/thing:3984749 \r\n- pics / videos taken from that perspective are much better than what I got from any other mount place\r\n\r\nOn the con side:\r\n- the rear column is in the way when I have anything to do at the electronics so the benefit of 'easy access' of the rear control case is partially defeated\r\n- it would be nice if the connector part allowed easier detach/reattach\r\n\r\nFor me the verdict was 'keep it' even after a major reshuffle with the electronics.