The vacuum cleaner in my little workshop is located stationary in one corner of the workshop. To reach the other side of the workshop, I use several hoses from old vacuum cleaners that are connected to each other. Most of these are recycled from old, defective vacuum cleaners 😊
Vacuum cleaner hoses with 40 and 41 mm OD seem to be a standard size in Europe.
The STL files are labeled according to the diameters in mm:
VacuumHoseCoupler-H40-H40.stl
connects a Hose with 40 mm OD to another Hose with 40 mm ODVacuumHoseCoupler-H40-H41.stl
connects a Hose with 40 mm OD to a Hose with 41 mm ODVacuumHoseCoupler-H41-H41.stl
... you get the idea ;-)Nothing special here. I printed most of these in PLA with 0.3 mm layer height, low infill (about 10%) and they work fine.
This is inspired by a FreeCAD tutorial by Youtuber cremofix.
The author marked this model as their own original creation.