Introduction
The SUNLU Filament Dryer S2 is an essential accessory for FDM 3D printers, designed to significantly improve 3D printing results by removing excess moisture from filaments. Filaments, especially when stored in humid environments or for extended periods, absorb moisture from the air. This moisture can lead to various printing issues such as clogging, stringing, brittleness, cracking, bubbling, poor adhesion, and layer shifts.
This filament dryer effectively removes moisture, restoring damp filaments to optimal condition. It can also function as a filament spool holder, allowing for continuous drying during the printing process, which is particularly beneficial in humid conditions.

Figure 1: Common 3D printing issues caused by moisture in filament.
Коопсуздук маалыматы
- Ensure the device is placed on a stable, flat, and heat-resistant surface.
- Иштеп жатканда желдетүү тешиктерин жаппаңыз.
- Аппаратты суудан же башка суюктуктардан алыс кармаңыз.
- Do not touch the heating elements directly when the device is in operation or immediately after use, as they can be hot.
- Аппаратты колдонбогондо же тазалоодон мурун электр розеткасынан сууруп алыңыз.
- Балдар жана үй жаныбарлары жетпеген жерде сактаңыз.
- Берилген кубат адаптерин гана колдонуңуз.
Продукт бүттүview
The SUNLU Filament Dryer S2 features a user-friendly design with a large touch screen for easy operation. It incorporates 360° surround heating for efficient and even drying of filament.

Figure 2: Key features and components of the SUNLU Filament Dryer S2.
Компоненттери:
- Filament Dryer Unit: The main device for drying filament.
- Кубаттуу адаптер: For connecting the dryer to a power source.
- Колдонуучунун колдонмосу: Бул нускама.

Figure 3: Packaging contents of the SUNLU Filament Dryer S2.
Жайгашуу
- Аппаратты таңгактан чыгаруу: Carefully remove the filament dryer and all accessories from the packaging.
- Кургаткычты жайгаштырыңыз: Position the dryer on a stable, flat surface near your 3D printer if you intend to print directly from it.
- Insert Filament Spool: Open the lid and place your filament spool inside the dryer. Ensure the filament unwinds smoothly.
- Route Filament (if printing directly): Locate the filament outlet hole on the dryer. Pull the filament through this hole. This allows the filament to be fed directly to your 3D printer while drying.
- Туташуу кубаты: Find the power connector on the device and plug in the provided power adapter. Then, plug the adapter into a suitable power outlet.

Figure 4: Setup and basic operation steps.
Иштөө нускамалары
Күйгүзүү/өчүрүү:
- To turn on the dryer, double-click the power button on the touch screen.
- To turn off the dryer, double-click the power button again.
Температураны жана убакытты орнотуу:
The dryer allows customization of drying temperature and time to suit different filament types.
- Температура диапазону: 35°Cден 70°Cге чейин.
- Убакыт диапазону: 0-99 саат.
- Use the "SET" button to navigate through the settings menu.
- Use the up and down arrow buttons to adjust values for temperature and time.
- The large LCD touch screen provides real-time display of present value (PV), setting value (SV), remaining time, and material type.
Filament шайкештиги:
The SUNLU Filament Dryer S2 is compatible with a wide range of 3D printer filaments, including but not limited to:
- PLA / PLA+
- Жыгач
- PETG
- ABS / ABS+
- PVB
- HIPS
- Нейлон
- АША
- TPU
- PMMA
- PA/PC
It supports filament diameters of 1.75mm, 2.85mm, and 3.00mm.

Figure 5: Filament compatibility and recommended drying settings.
Техникалык тейлөө
- Тазалоо: Before cleaning, ensure the device is unplugged and completely cooled down. Wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water.
- Сактагыч: When not in use for extended periods, store the dryer in a cool, dry place, away from direct sunlight and excessive humidity.
- Үзгүлтүксүз текшерүү: Periodically check the power cord for any damage. Ensure the filament path is clear of debris.
Проблемаларды чечүү
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Түзмөк күйбөйт. | Кубат адаптери туура эмес туташтырылган; розеткада көйгөй бар. | Ensure power adapter is securely plugged into the device and a working power outlet. Double-check the power button operation (double-click to turn on). |
| Filament still damp кургаткандан кийин. | Incorrect temperature/time settings; extremely damp жип. | Increase drying time or temperature according to filament type (refer to Figure 5). For very damp filament, multiple drying cycles may be needed. Ensure the lid is properly closed. |
| Device tips over when feeding filament. | Unstable placement; excessive tension on filament. | Ensure the dryer is on a stable, level surface. Minimize tension on the filament being pulled from the dryer. Consider placing the dryer at a lower height relative to the printer. |
| Display not showing correct humidity. | Sensor calibration; environmental factors. | The built-in hygrometer provides an indication. For precise measurements, an external hygrometer may be used. Continue drying based on recommended times for filament type. |
Техникалык шарттар
- Продукциянын өлчөмдөрү: 10.43 x 10.79 x 4.65 дюйм
- Элемент Салмагы: 3.42 фунт
- Модель номери: SLUS-FD-S2-BK-US-NEW
- Өндүрүүчү: СУНЛУ
- Максималдуу иштөө температурасы: 70°C
- Dry Time Adjustable Range: 1-99 саат
- Dry Temperature Adjustable Range: 35-70°C
- Киргизүү өзгөчөлүгү: AC 100V-240V, 50/60HZ
- Max Working Electricity: 1.8A
- Max Working Power: 48 Вт
- LCD экрандын өлчөмү: 4.6 дюймдук
- Filament шайкештиги: 1.75мм, 2.85мм, 3.00мм
Кепилдик жана колдоо
For warranty information and technical support, please refer to the official SUNLU website or contact their customer service directly. A digital version of this user manual is available for download:





