38 mm to 57 mm hose adapter
An adapter for a 38 mm hose on a 57 mm port. Both ends have a slight jam-fit taper and friction ribs, so it seats snug on vacuum hoses, sander ports and extractor fittings without tape. It prints standing on the wider end with no supports. If your port measures differently, the diameters are editable to a tenth of a millimetre.

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Specifications
| End A | 38 mm, slides over the port |
|---|---|
| End B | 57 mm, slides into the port |
| Elbow | straight |
| Grip | jam-fit taper + 3 friction ribs per end |
| Wall | 2.4 mm |
Printing
- Prints standing on the wider end: no supports for straight adapters.
- 3+ perimeters, no infill needed; PETG grips hoses better than PLA.
- The tapered ends jam tight; the ribs hold the hose without tape.