EVA Duct for the V6 and clones Volcano hotend

thingiverse

Edit: Re-uploaded, uploaded an older version at first, one that didn't have adequate fillets around the output for easy printing. Stand on end to print, no supports needed. If you use a silicone sock on your volcano hotend, it may block the vents , I always cut the bottom off the sock off, just the half with the nozzle. If you decide to cut yours off, do it so that the cut edges are flush with the bottom of the heat block. Heat goes up so you're not losing much insulation value but the amount of cooling air making it to the filament being deposited increases greatly. No matter how good you fan duct is that sock blocks most of it's air, the bottom of my sock added over 2mm. It's impossible to get a duct to put the air where needed for good bridging when there's only a small gap beneath it due to that sock, vents can only be so close to the bed or part being printed. I wanted a better duct solution than the standard two vent EVA duct, without having to up to the dual 5015 fan back mod as I don't really have the room for it. So I designed this duct, with three vents. It works pretty well with a standard 5015, even better with a turbo. Adding the third vent in the middle really helps move part cooling air to where it's needed. My bridging immediately improved. I don't have much CAD skill so don't expect much, I have no way of testing airflow by computer so no graphs or fancy renders. All I know is that in practical application it worked for me. The standard double vent duct for the EVA they put out for the Volcano hot end didn't work very well on my printer, my bridging quality went way down when I changed over to the Volcano, the quality drastically improved when I put this thing on. I hope it helps or is of some use to somebody.. Thanks to the EVA gang for such a great carriage.