Dual Duct Halo Taz 4

We would like to share our version of what a dual duct fan shroud should look like for the Taz 4. It will combat heat creap on those 30+ hour prints plus it cools the Print from a 360 degree angle. We are still tweaking the design but it has been a valuable upgrade when it comes to both print quality and fighting heat creap, which can be a complete nightmare. I will include some print specs that have worked well for us. We print using slice3r at 75mm/sec, .25 thickness, .95 to 1.0 extruder multipler, usally 190 to 200 Deg. at that feed on semi large prints say 6" square we print the first two layers with the fan off to increase adheashen to the bed, then increase the fan to 100% for the rest of the print. These are just some base guidelines to start from. One more thing if you are printing from pronter face it will send the code to your printer faster with fewer delays if you run it in mini mode (there is and icon in the upper middle of pronter face that says mini mode) We had problems with hesitation while printing tethered to the computer untill we started using mini mode on pronter face. Hope this helps
This file is also on thingverse.com, just search dual duct halo

Happy printing,
Open Edge Design


What filaments are you using with those settings, and from where did you purchase it?

Thanks for sharing,

We are using makergeak 2.85 MM, so far it has worked pretty good.

this is cool. So I’m assuming it’s designed for buddashnozzle then? I wonder if this would work for the Hex hot end also. Could get rid of one fan…

Yes its designed for buddashnozzle, we haven’t tried it with the hex hot end, I’m planing on upgrading to the hex hot end, at that point I will redesign this and do away with the top duct and rely on the factory fan to cool the hex hot end, this will benefit this design by forcing more air to cool your print.