Karcher vacuum cleaner WD2 WD3 WD4 etc. connector for 50mm, 40mm pipes

I made two types of connectors, which work with Karcher vacuum cleaners - WD2, WD3, WD4 familly etc :

1. for 40mm spiral pipe 
   - with “left” thread
   - with “right” tread
   
2. for 50mm pipe:
   - straight simple version (for non-spiral pipes) - blank and with ribs 
   
   - with “right” tread for spiral pipe
   - with “left” thread for spiral pipe
    

Connector is made from 2 parts - connector base (version to chose from above), and standard “lock” (which should be printed on side, to achieve durability and elasticityelasticity). Lock should be glued (i use T7000 glue for PETg), but it holds without glue too (snap-in in place)

On vacuum cleaner side is additional groove for O-ring 50mm, if you want additional seal and eliminate air leaks. It also reduces play in the seat. It's not necessary, but it helps.


Printing: lock should be printed od one side, connector - vacuum side up, and two flat surfaces with support (tree manual, I suggest). Filament - PETg works great.