I have posted several adapters to connect to the dust post of the Milwaukee M18 Random Orbital Sander (model 2648-20). These adapters were created in Fusion 360, so unfortunately I cannot share any useful models.
I have included 3 different STL files:
Printer: Prusa i3 MK3
Slicer: Cura Slicer
Material: Inland PET-G
Resolution: 0.2mm with a 0.4mm nozzle
Wall Lines/Perimeters: 3
Infill: Minimum 10% Gyroid. The higher infill percentage the stronger the part.
Notes: No supports should be necessary.
To attach these adapters to the M18 compact vacuum hose, you need to remove the nozzle. The hose is left-handed, which means the wire is wound in a left-handed direction, opposite of the normal right-hand direction that you are used to with most threads.
To remove the nozzle, turn it clockwise until the glue breaks, then the nozzle will screw off. Then screw the new adapter onto the hose counter-clockwise.