Left-hand-neutral hose adapter for DeLonghi PAC EX100 dual-hose mod (dwiedmer remix)
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Hose adapter for dwiedmer's DeLonghi PAC EX100 mod. Screws in any hose regardless of spiral direction.
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- Printables
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- Other House Equipment
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- Creative Commons — Attribution — Noncommercial — Share Alike
I redesigned dwiedmer's hose adapter from scratch so that it imitates the way De'Longhi connects their hoses to the air conditioner. Instead of a spigot that screws into the hose, this adapter has an internal thread that the hose screws into — it grips the outside of the hose. Rather than a continuous spiral thread, I recreated the De'Longhi connection pattern: interrupted, horizontal rib segments instead of a helix. The huge advantage is that a hose of the 150 mm class (≈148–150 mm outer diameter) can be screwed in regardless of whether its spiral runs clockwise or counterclockwise.
Because this part is slightly larger than dwiedmer's original, I used the extra wall thickness to add a lip that serves as a stable, flat mounting surface.
Adhesive — two different joints:
Adapter ↔ housing (printed part to printed part): neutral-curing silicone — it seals well and can be cut loose again later (e.g. for winter storage) without damaging anything.
Housing ↔ air conditioner: neutral-curing silicone as well.
Hose: Instead of the De'Longhi hose that typically ships with the PAC EX100 (available separately), I used a very similar model from Evolar (EVO-15020AM). It is longer than the original hose, which makes it better suited for the intake side leading out of the window.
Thread specs (measured from my hose):
Rib tip Ø 143.7 mm · root Ø 149.5 mm · pitch 7.4 mm · rib width 2.8 mm
Direction-neutral (horizontal segments, no handedness)
If your hose differs, measure its crest outer diameter and its pitch (over 5 waves, hose relaxed) and compare. Small differences are usually fine; larger ones need a rescaled thread.
Two versions included:
Standard — trapezoidal rib profile, needs light support under the rib undersides.
Support-free — 45° self-supporting rib undersides, prints without support. Minimal grip trade-off, same direction-neutral behaviour.
Print settings: upright, thread entry on the bed / spigot up, 0.2 mm layers, 4 perimeters, PETG. Support-free version: no supports. Standard version: supports on, contact Z-distance 0.4 mm and 0 interface layers for cleaner removal on PETG. A 3–5 mm brim helps on the narrow footprint.
Original model and housing by dwiedmer — this adapter is designed to fit that model:
Licensed under CC BY-NC 4.0, same as the original.