AnyCubic Mega S 360° Part Cooler

thingiverse

https://www.thingiverse.com/thing:2741696 didn't have any rear cooling, and the screw holes were slightly out of alignment for my Anycubic i3 Mega S on the rear backplane of the carriage mount. I have made the cooling duct circular, and added a modified bracket for two 5015 blower fans, to be wired in parallel, they can be used successfully at 75%, and provide ample cooling for PLA. I added a silicone gasket, between the fan bracket and main body, cut from a sheet of https://www.ebay.co.uk/itm/231021432811 , and added circular cut out pieces to the tops of the vertical pillars, and faces adjoining the 3D printer carriage and its backplane. You'll need some M3 bolts, nuts and washers to fix the parts together. Vertically I drove some M3 x 20mm long bolts into the vertical pillars with no pre-threading, straight into the plastic, don't over tighten, or it will strip the treads, but it will hold really tight. Some M3 x 16mm for attaching to the rear backplane. For the M3's, I used a washer where a bolt or nut met a face, be that either plastic or metal, and a piece of silicone sheet where two faces met. You'll also need some M4 x 20mm nuts and bolts for the fan to bracket mounting, and M4 x 30mm for coupling the two fans together with the joint pieces, of which you'll need two.