Dust collection fitting maker

Printable adapters between any two hoses or tool ports.

3D · as printed · drag to turn

Section · through the centreline

Checks

–print height

–filament

–narrowest bore

–steepest overhang

Units

Quick starts

Diameters in the lists are typical. Measure yours with calipers before printing; ports vary by brand and year.

AEnd A

BEnd B

Body

Printer

How to measure, print & fit

Use calipers. For a port or hose cuff that the fitting slips over, measure its outside diameter about 10 mm from the tip. For a hose the fitting slips into, measure the inside of the mouth.
Most shop-vac cuffs and ports are tapered. Measure at the tip and type that number; the fitting’s own taper does the rest.
Not sure? Print the Check-ring PDF at 100% and hold the port against the ring, or wrap the paper π-tape around it.

PETG is the better choice: tougher and less likely to crack at a clamp. PLA works for light use.
The STL is already standing in the orientation the Checks recommend. Walls: set enough perimeters to make them solid (for 2.4 mm with a 0.4 mm nozzle, 5–6 perimeters).
Red faces in the 3D view need support. Straight and gently offset fittings never do.

A tapered end should start easily and go tight partway in. “Grips at” in each end tells you where.
Too loose: lower the clearance by 0.2 mm or add a grip ridge. Too tight: raise it by 0.2 mm.
Hose barbs and clamp grooves are for flexible hose. Put a hose clamp over the groove.