# Filament Joining System Sunlu FC01 — filament welder for PLA/ABS/TPU repair and spool splicing

**URL:** https://aio.lv/en/product--sunlu-fc01--12394618
**Data updated:** 2026-04-25 14:14 (EEST)
**Category:** 3D Printer Consumables
**Manufacturer:** Sunlu
**Manufacturer code:** FC01
**EAN:** 6933582313807
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 37.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 30.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sunlu-fc01--12394618

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Sunlu FC01 Filament Joining System is a filament welder designed to fuse 3D printing filament ends for reliable splicing and repairs. Compatible with common materials such as PLA, ABS and TPU, it heats and joins filament to restore continuity, reduce print failures and enable spool-to-spool connections. Suitable for hobbyists and small workshops.

## Long description

The Sunlu FC01 Filament Joining System is a compact filament welder that joins 1.75 mm 3D printing filament ends for reliable splicing and repairs. It supports common materials such as PLA, ABS and PETG, heats to working temperature in about 3 minutes and provides precise temperature control for repeatable, strong joints. The device is intended for hobbyists and small workshops who want to reduce filament waste, restore continuity after breaks and create multi-colour or gradient prints by joining different spool ends.
Advantages
The FC01 minimizes filament waste by enabling effective joining of spool ends and small scraps, allowing you to use filament until the last meter. Rapid warm-up and a short splicing cycle mean minimal downtime, while temperature accuracy and an insulated housing provide repeatable, safe results. The unit supports a range of common printing materials and offers intuitive operation suitable for users with different experience levels.
Suitable for
Hobbyists repairing broken filament strands
Small workshops and makerspaces joining spools or scraps
Users creating multi-colour prints or smooth colour transitions
Anyone aiming to reduce material waste and printing costs
When it may not be suitable
The FC01 is designed for 1.75 mm filament and may not work with other diameters. It is intended for common thermoplastics (PLA, ABS, PETG); results may vary with flexible filaments or speciality materials. Buyers who need industrial-scale splicing throughput or automated spool handling should consider more advanced equipment.
Key specifications
Supported filament diameter: 1.75 mm
Supported materials: PLA, ABS, PETG
Operating temperature range: up to 240°C
Typical PLA operating temperature: approx. 185°C
Warm-up time: approx. 3 minutes
Splicing time: 10–15 seconds per joint
Temperature accuracy: ±3°C
Power supply: 5V 2A (adapter not included)
Housing temperature during operation: approx. 50–100°C
How to use
Prepare the filament ends by cutting them square and inserting them into the PTFE splicing tube. Connect the FC01 to a 5V 2A power source, switch it on and wait for the unit to reach the operating temperature (around 3 minutes). Align the filament ends in the heating chamber, operate the splicing cycle (10–15 seconds) and allow the joint to cool briefly before trimming excess material and resuming printing. Follow the included user manual for safety and detailed steps.
What to consider before purchase
Confirm your filament diameter is 1.75 mm
Check that your primary materials are PLA, ABS or PETG
Power adapter (5V 2A) is not included
Housing reaches elevated temperatures during operation—allow for safe handling and cooling
Usage recommendations
Use clean, square-cut filament ends and the provided PTFE tube for best results; perform a short test splice when changing material types or colours to confirm settings before critical prints.

## FAQ

### How much does the Sunlu FC01 Filament Joining System cost, and is it available for purchase?

The price is 37.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 340 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Sunlu products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Sunlu service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12394618/68509700_large.webp