Ender 3 Cooling Ring

thingiverse

I've had a great deal of success with ring style fan ducts on my DIY printers in the past so I thought I'd look for one for my Ender 3, I could only find one so I decided to create a new, sleeker version. The one I found was created by https://www.thingiverse.com/Filboyt His version is really good, and I used his mounting method which is why I'm mentioning it. But to be clear, this Thing is not a remix, it is 100% designed from scratch! Printing with the stock Ender 3 fan duct should be "good enough" but I recommend reprinting with this ring duct installed, you should get a better print especially on the inside. This is designed for the newer Ender 3, if anyone would like it modified for a different Ender and can provide dimensions please let me know and I'll create a variation. It mounts using the 2 lower screws that the stock duct uses (see pic 2) Your nozzle should stick out just below the bottom of the Ring Duct (see pic 3) *UPDATE* (Ender Cooling Ring - 5.3mm Offset.stl) I've added a variation based on a request from MetalGearSortof This offsets the ring by 5.3mm compared to the fan for an Ender variant *UPDATE* (Ender Cooling Ring - 1mm Lower - 5.3mm Offset.stl) Lowered the ring by 1mm to allow extra clearance for using a silicone sock keeping the 5.3mm offset *UPDATE* (Ender Cooling Ring - 1mm Lower.stl) Also added a variant with the original design but 1mm lower. This helps with using a silicone sock. NOTE: to use the 1mm lower variants, remove your nozzle, wind the heater block 2 turns further up onto the heat-break, then reinstall your nozzle. This makes the nozzle sit 2mm lower compared to the heater block and allows for the extra clearance for the sock. (Thanks to MetalGearSortof for experimenting with this!)