CONCLUSION

    Looking at the EIBOS POLYPHEMUS from a performance‑driven perspective, it stands out as a dryer built to maintain stable conditions over long sessions rather than simply heating a spool and hoping for the best. Its controlled thermal system ramps up quickly, and the preset material modes give you predictable behavior across a wide range of filaments without constant manual tweaking. The rotating platform helps distribute warmth around the spool’s circumference, reducing the usual hot‑spot/cold‑spot imbalance that can show up in static dryers. For users who frequently work with moisture‑sensitive materials, especially engineering‑grade filaments the consistency it provides is genuinely useful. Where the POLYPHEMUS becomes more versatile is in its ability to scale. With the optional expansion kit, it can house 3kg filaments, which opens the door for long‑form printing, multi‑day jobs, or large‑format machines that rely on oversized filament rolls. The dual rear feed ports also make it easy to integrate the dryer directly into your printing workflow, letting you run filament straight from the chamber without constantly relocating spools. Combined with its internal sensors and steady temperature regulation, the device behaves more like a controlled environment than a simple heater box. Its drawbacks are practical rather than conceptual. The power draw above 100W during active heating is something to keep in mind if you run extended drying cycles or operate multiple units. The rotating system does improve uniformity, but the real‑world gain is incremental, not a dramatic leap over simpler designs (although once again, my thermal imaging devices may not be as accurate as the ones used by the people over at EIBOS). And because the chamber is sized to accommodate larger spools and a rotating base, the unit occupies a noticeable amount of workspace, which may matter in compact setups. Even with these considerations, the POLYPHEMUS presents itself as a solid, dependable drying solution.

    As I type these lines the POLYPHEMUS filament dryer by EIBOS retails for USD139.19 inside the USA (Amazon.com) and for 125.03Euros inside the EU (Amazon.de) and so it’s priced well for what it does. At the end of the day the POLYPHEMUS does exactly what it was designed to do, it effectively dries and keeps your filaments dry regardless of type and that’s why it gets the Golden Award.

PROS

- Fast 360 Degree Drying
- LCD Screen
- Adjustable Time, Humidity & Temperature
- Filament Support (9 Types Plus 3 Custom)
- Extra Motor & Roller
- 3Kg Filament Support Kit Available (Extra)

CONS

- Overall Size
- Power Consumption (For Some)