Centauri Carbon Air Control Riser

Air flow adjustable riser for the Elegoo Centauri Carbon CoreXY printer. Prints on the Centauri Carbon or in the case of this profile, the Kobra 3 v2 and other printers of that size or, of course, larger printers such as the K3Max. This site forces me to upload a .3MF for slicer next. When removing the tree supports from the corners, don't bend out, pull down with just a tiny bit of bend out and they should come out cleanly. I will / can add FAN inserts if somebody requests them, though I may not have the exact fan so that requester will be the tester :)  The back of the riser has two 18.2mm holes on each side that I plug with my 18mm sliced grommet for cables. I will be making a corner piece that allows use of a Wyze Camera, though I find the camera on the Carbon is really good as is. Grommet: https://www.makeronline.com/en/model/18mm%20Split%20Grommet/129704.html