Dust extraction fittings, printed to fit
Reducers, bends and branches 3D-printed in PETG to the diameters you measure. Pick the fitting, enter each end and see the price.
- Any size from 15 to 250 mm, in mm or inches
- Outer or inner diameter, to fit inside a hose or over a port
- Printed to order in New Zealand
A 100 → 200 mm reducer: $27.50
Choose what you need
Tap one to see examples and prices.
ReducersJoin two different sizes. Concentric or flat-bottom eccentric.e.g. $27.50
BendsCompact swept 90° bends and 45° bends.e.g. $19
BranchesY-branches and T-branches for extra machines.e.g. $30
End caps and wall flangesBlank off a port, or bolt a duct to a wall.e.g. $13.50
Fitting typesEight shapes, every end sized by you
Sizes and measuring15–250 mm, mm or inches, outer or inner diameter
Measure each hose or port with calipers if you can. You set each end separately.
| Diameter range | 15 to 250 mm, entered in mm or inches |
|---|---|
| Outer diameter | For an end that goes inside a hose. It gets a small raised bump 3 mm from the end so the hose clamp grips. |
| Inner diameter | For an end that slides over a pipe or machine port |
| Fit | Printed to 0.1 mm with a 0.2 mm clearance |
Walls and lengthsWall 1.5–10 mm, straight ends 30–80 mm, taper set for you
| Wall | 1.5 to 10 mm. Ends of 200 mm or more get at least 2.5 mm. |
|---|---|
| Straight ends | 30 to 80 mm at each opening |
| Taper | Set for you at a 130° angle, so the sloping wall prints cleanly |
| Wall flange | Spigot 20–100 mm, 2–12 bolt holes, 3–12 mm |
Material and limitsPETG, dust extraction only
Printed in PETG: tough, slightly flexible and fine in a dusty workshop.
⚠ Dust extraction only. Not for HVAC, and not certified to any building, fire or ventilation code. PETG softens at about 70 °C.
How it worksPick the fitting, size each end, order
- Pick the fittingReducer, bend, branch, cap or flange.
- Size each endDiameter, outer or inner, and wall. The price updates as you go.
- We print and send itPrinted to order in New Zealand. Download a free PDF drawing first if you like.
Common questionsInches, which diameter, big fittings, returns
My hoses are in inches. Is that OK?
Yes. Switch any end to inches. A 4″ hose is 101.6 mm.
Which diameter do I enter?
Outer diameter if the fitting goes inside the hose, inner diameter if it slides over a pipe or port.
What if I need something big or unusual?
The calculator covers 15–250 mm. Fittings over $150 each switch to an email quote.
Can I return it if I change my mind?
Every fitting is printed to your sizes, so we can’t take change-of-mind returns. If anything is wrong with it, we’ll reprint it or refund you.
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