To ensure you receive genuine LANDU products and enjoy full warranty coverage and customer support, please purchase through our official channels:

• LANDU Web Shop
• Amazon
• AliExpress

Purchasing through authorized channels ensures:

• Genuine LANDU products
• Full warranty and technical support
• Exclusive discounts and bundle offers

If you need further assistance, please contact us through our contact form or email: store@landu3d.com

1. Select your desired product.
2. Choose the quantity and add it to your cart.
3. Proceed to checkout.
4. Enter your shipping and payment information.
5. Complete your purchase.

Once your order is confirmed, you will receive an order confirmation email.

Orders can only be canceled or modified within 24 hours after purchase. Please contact us immediately at store@landu3d.com.

After 24 hours, your order may already have entered the fulfillment process and cannot be changed.

We currently accept:

• PayPal
• Credit/Debit Cards
• Bank Transfer (for bulk orders)

Installment payment options will be available in the future.

At LANDU, we strive to ensure every order arrives safely and on time. If your package is lost, damaged, or contains incorrect items, please contact us through our contact form or email: store@landu3d.com

Please provide:

• Order number
• Photos of the packaging and filament spool (inside and outside photos if available)
• Shipping address
• Description of the issue

This information helps us review your case quickly and arrange a solution, such as replacement.

If you experience any product quality issues, please contact our customer service team within 14 days after receiving your order at store@landu3d.com

Please include:

• Order number
• Product name, quantity, and batch number
• Detailed description of the issue
• Photos or videos showing the problem
• Shipping address

Providing complete information allows us to quickly locate your order and provide a solution.

For technical issues or repair assistance, please contact: support@landu3d.com

If you do not receive a response within one business day, please check your spam folder or resend your email.

To maintain the best printing performance, we recommend:

Storage Temperature: 15–25°C (59–77°F)

Storage Environment:

• Keep filament sealed when not in use.
• Store in an airtight container with desiccant for best protection against moisture.

Recommended Usage: For optimal performance, use filament within one year after purchase, as vacuum sealing conditions may change over time.

Moisture absorption may affect printing quality, especially for: PETG, TPU, Nylon, ASA, ABS.

Common symptoms include:

• Stringing
• Popping sounds during printing
• Poor surface quality
• Weak layer adhesion

Drying the filament properly can often restore its original printing performance.

Poor bed adhesion is usually caused by:

• Incorrect bed temperature
• Dirty printing surface
• Incorrect first-layer settings

Try these solutions:

• Increase bed temperature gradually by 5–10°C.
• Reduce first-layer printing speed.
• Clean the printing surface thoroughly.
• Use additional adhesion solutions, such as glue stick, Magigoo, or a textured PEI surface.

1. Reduce Printing Speed — Lower printing speeds improve stability, printing consistency, and extrusion reliability.

2. Store and Dry Filament Properly — Filament absorbs moisture over time, especially materials such as PETG and TPU. Proper storage and drying help maintain stable extrusion, better surface quality, and stronger prints.

3. Keep Your Build Plate Clean — Dust, oil, and residue can reduce adhesion. Regular cleaning ensures better first layers and more reliable printing results.

4. Check the First Layer Before Leaving the Printer — Monitoring the first layer is one of the most effective ways to prevent failed prints.

ASA — Recommended Choice. ASA provides excellent UV resistance, strong weather resistance, and high durability. It is ideal for parts exposed to sunlight for long periods.

PETG — Alternative Option. PETG offers good durability, easier printing, and moderate UV resistance. It is suitable for short-to-medium outdoor applications where some flexibility is acceptable.

If you are unsure which filament fits your project, contact us with details such as:

• Application environment
• Required strength
• Temperature resistance
• Printer compatibility

Your feedback also helps us improve future products.

Yes! We are always looking for passionate 3D printing creators to join the LANDU community. If you are interested in collaboration, please email our Marketing Collaboration Team: marketing@landu3d.com

Please include:

• A brief introduction of your audience and engagement
• Links to your best 3D printing videos/posts
• Previous collaborations or projects
• Platforms you use: YouTube, Instagram, TikTok, or other communities

Please also tell us what type of collaboration you are interested in.