Had to extend my exhaust hose on my portable AC as explained in this amazon review : http://www.amazon.com/gp/customer-reviews/RHTXOMLKK2RAC/ref=cm_cr_pr_rvw_ttl?ie=UTF8&ASIN=B0048ELABM
I didn't want to cut the provided wall adapter so I decided to print one!
Was quite easy to design, 10mm helical thread in a ~5inch tube.
5InchVentAdapter.STL | 670.0KB |