The file 'Vacuum Adapter For Bosch GAS 35 (C35 Clip) -> Makita RT0700 (and Clones) 3D Printer Model' is (stl) file type, size is 1.7MB.
I was struggeling combining my Bosch GAS 35 M AFC workshop vacuum with my Katsu trimmer (Makita RT0700 clone) since the provided power tool adapter had almost the same outside diameter as the vacuum ports of the trimmer. After several unsuccessfull attempts with duct tape and bicycle tubing I decided to utilize the 3d printer to get a working adapter with direct connection to the tube.
The tool-side is slightly conical as well as the vacuum port of the trimmer so there is no need for sealings or similar - simply push it on.
The vacuum-side is a tight fit and might need a very little bit of sanding if your printer tends to create blobs and uneven surfaces (recommendation is a dremel with a flapwheel bit).
The adapter might fit other vacuums as well if they have the same locking mechanism (Kärcher Tact series looks similar as well as some others - no guarantee on this, feedback welcome!).
Edit: When looking for an additional hose for my vac I discovered Kärcher (and probably others) named the connector C35. So if your hose has a C35 connector, it should fit.
Makita_37mm_Adapter.stl | 17.4MB |