CR10 cooling head

thingiverse

After trying some "Fang" designs and finding them not stable, swinging, and prone to loosening the hot-end, I decided to design one myself. My main goal was to keep the nozzle visible, as that is my biggest gripe with the original CR-10 design. The two fans are placed on each side, keeping the front relatively open and accessible. Best printed on its back, with supports. This cooling cap rests on the right side of the hot-end bracket and is fixed with one screw on the left - an original screw. I printed this in ABS but it will do well in PLA too, I think. The heat-brake fan is mounted so that the air is sucked out from the cap. The heatbrake is also completely free and has no contact to the cap. Update: The new V2 version has the two fans angled at 30 degrees. This is to avoid the resonance sound when doing fast moves on the X-axis, where the part-cooling fan starts to vibrate in its bearing. While harmless, that was annoying, and this leans the fan outwards so it's less likely to vibrate. I did the same with the heat sink fan, which is now pushing the warm air up instead of partly into the print. The downside is that the one screw that was used is now behind this heatsink fan, and in order to remove it, the fan has to be removed first... I'll think of a better way to do this. The mounting is also slightly different: I screwed an M3 screw in from the back of the plate. To do that, you need to remove one top and the bottom roller so you can wiggle the plate off the X-gantry and tilt it forwards. Then screw an M3 in the hole and make sure it sticks out only 2 or 3mm on the front. Replace the hot-end plate on the gantry, mount the rollers again, and adjust for proper friction. The left fan must be removed at this time, place the cap over the hot end, and make sure the hole goes over the M3 sticking out. Then mount the fan in place. I printed this upright, with 100% infill, with supports starting at 65 degrees. That gives me the cleanest outside surface I've ever seen. Total weight is around 35 grams.