This is the newer symmetric version of my previous twin duct cooler which is now obsolete. The previous version had assymetrical paths to each of the ducts which wasn't ideal in sharing the cooling air equally. This version has improved air flow and is symmetric. So both ducts share the air equally. There's also an added clearance to attach a silicon boot to the hot end should you so wish to.
Technical
Print the "Bucket 11" standing vertically on its open end and the "Ducts 11" (or "Ducts 11 wider") laying on its flat side. I used PLA with 100% fill and glued the two halves together with superglue.
Forgot to add - use a 0.16mm layer height - for best results
"Ducts 11 wider" has slightly larger nozzles than "Ducts 11"
"Ducts 11 stubby" has slightly larger nozzles than "Ducts 11" and is shorter in length
- choose whichever one you prefer.