3inch to 80mm fan adapter, suitable for snapmaker 2 enclosure ducting

thingiverse

I have extended my snapmaker 2.0's 3inch exhaust ducting by 5 meters and decided I should put another 80mm fan on the far end when printing or burning anything too harmful.Ducting goes over one end and allows you to bolt to a standard 80mm fan. The ducting is intentionally quite a tight fit but go slow and it will fit. Should use a jubilee clip but the longer ones seem ok without. There is a chamfer to to help you attach it.There are 3 versions.3inch duct to 80mm fan-no logo.stloriginal as shown in the pic.3inch duct to 80mm fan-cleaner internals-30mm-no-logo.stlI enlarged and smoothed the internal path for better airflow. Also shrunk down the length of the 3inch diameter part for quicker printing and less filament. Please note, I have not test printed this part, please let me know if you do by adding a make or a comment.3inch duct to 80mm fan-cleaner internals-40mm-no-logo.stlA longer version of the above. Probably better unless you are in a rush or skint. Its more secure. Please note, I have not test printed this part, please let me know if you do by adding a make or a comment.Mine used roughly 22g of PLA. I used 0.3mm layers and 10% infill no supports or raft required.