Wanhao Duplicator 6 Offset Fan Direct Cooling Duct (Prototype)

thingiverse

Update: Supermagnum variant. Improved airflow significantly reduces resistance on the nozzles. You should probably print the Magnum first for better bridging before tackling the Supermagnum, which has large areas to bridge over the nozzles. Alternatively, printing it upside down also works, in addition to rotating the layer angle a little to help. https://www.thingiverse.com/thing:2448555 Update: Centrifugal version of the Supermagnum is also available. It has a unique bridging challenge that can be tackled by the same strategies as before. Even more airflow than the standard Supermagnum. https://www.thingiverse.com/thing:2452863 The summer heat has finally melted my brain, just like the PLA oozing out of the 0.4mm nozzle of my D6 printer. I've created a new direct cooling design from scratch, but it's practically the same thing with some key differences. Unfortunately, due to inadequate cooling and Slic3r still hating me, along with Cura only hating me a little less, I have an ugly prototype that needs improvement. A 13mm spacer is included, which is too short for this design, but it will be replaced when I get the Magnum variant up. The design still cools and delivers better focused airflow on the nozzle in all directions except for one jet that gets obstructed by the heater block. You wouldn't want to be too close to those electronics with a spacer that's too short, would you? A 14mm spacer is now included with proper spacing, but the 13mm one remains if you prefer doing things your own way. The 14mm spacer has speed holes for faster printing. If road cyclists can claim to go faster by drilling out metal from their dropouts, we can say we go 2mph faster in printing without paying $400 per gram. The standard version is already available, and as soon as I validate the magnum variant, I'll upload it. Don't worry if your print looks like a failure; you might need to tape the roof to ensure it works. Print at your own risk and don't say I didn't warn you about inadequate cooling. I recommend printing it upside down in orientation, with the bridging assist feature facing downwards. You will lose some print area in the left corner if you use these ducts, which will bump the motor. They take about 1 inch or 2-3cm more space, like the legs of a triangle. Be careful not to stick any heatsinks onto your steppers.