Call3D

Filament Splicer – Call3D Filament Welding Tool

Name: Filament Splicer – Call3D Filament Welding Tool
Brand: Call3D
Price: 19.99 USD
Availability: InStock

Filament Splicer – Call3D Filament Welding Tool

Lets you join partial spools and broken filament runs with a rigid aluminium clamp.

Use Up Partial Spools and Offcuts

Join short ends, half-used spools, and snapped runs into one printable length, so leftover filament gets used on prototypes and test prints instead of being thrown out.

Aluminium Clamp Holds Alignment

The body is machined from aluminium, so repeated flame heating does not soften it or shift the channel. Each splice lines up the same way as the first one did.

$19.99

Shipping calculated at checkout.

In stock

This filament splicer joins two ends of 1.75 mm filament into one continuous strand, so partial spools, snapped runs, and short offcuts become printable again instead of going in the bin. It is a two-piece clamp machined from aluminium rather than printed, and the only thing it needs besides filament is a household lighter or a heat gun. No power supply, battery, app, or PTFE sleeves are involved, so there is nothing to recharge and nothing to keep buying.

Load one filament end into each side of the channel, melt the tip of one end briefly with the flame, and push the two ends together while the plastic is still soft. The machined channel holds both ends in line and contains the softened plastic, so the weld sets close to the nominal diameter instead of as a lump on the side of the strand. Trim any flash with flush cutters and check the joint with calipers before it goes onto a spool.

Because the clamp is machined aluminium, the flame heats the filament rather than the tool. A jig printed in PETG or ABS softens under the same heat and its channel drifts out of line, which matters most when you sit down and join a whole box of leftovers in one session. PLA, PETG, ABS, and ASA join well; TPU deforms at the seam and fiber-filled filament does not fuse across the joint. Joints must be trimmed and measured before AMS use, since an oversized or oval joint is what catches inside the feeder path.

90-Day Warranty
30-Day Return
7-Day Delivery

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18 Nov | Estimated delivery shown for your destination.

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Filament Splicer – Call3D Filament Welding Tool Overview

For makers who want to use up leftovers without adding another powered device.

If the goal is turning a box of half-used spools into printable lengths and you would rather not put another powered tool on the bench, an aluminium clamp covers that job for very little money and no consumables. A printed jig does the same work for free, but the plastic softens under a lighter and the channel drifts, so it holds up best for the occasional PLA splice. Powered splicers with a built-in heater and presets give more repeatable heat, and they rely on a PTFE sleeve that is cut off after every splice, which suits anyone splicing often enough to justify the upkeep.

Product Specification

Product Type: Filament splicer / filament welder
Body Material: CNC-machined aluminium
Clamp Format: Two-piece clamp, hand-tightened
Compatible Filament: 1.75 mm (0.069 in)
Heat Source: Household lighter or heat gun
Power Requirement: None
Consumables: None; no PTFE sleeves required
Supported Materials: PLA, PETG, ABS, ASA

Package Includes

1 × Aluminium Filament Splicer
Not Included: Lighter or heat gun (any household lighter works)
Not Required: PTFE sleeves — the machined channel holds the joint in shape

Requirements & Installation Notes

Heat source: a household lighter or a heat gun is enough; there is no cable, battery, or firmware to set up.
Preparation: cut both filament ends square with flush cutters. An angled cut traps air and leaves a weak spot.
Technique: heat one end just until it softens, push both ends together inside the channel, and hold until the joint sets.
Safety: work on a heat-resistant surface, keep the flame on the filament rather than the clamp, and let the tool cool before opening it.
Check: trim the flash and measure the joint before spooling it; an oversized or oval joint can jam in the AMS.

Explore Precision Upgrades for Your Bambu Lab

Frequently Asked Questions About Filament Splicer – Call3D Filament Welding Tool

How is the splicer heated?

With a household lighter or a heat gun. The tool has no heater, cable, or battery; the flame softens the filament tip while the aluminium clamp holds both ends in line. Brief heating is enough, and letting the joint cool before opening the clamp keeps it straight.

Which filament materials can I join?

PLA, PETG, ABS, and ASA join well. TPU tends to deform at the seam and fiber-filled filament does not fuse across the joint, so neither is a good fit for splicing. Join the same material on both sides; the colour can differ.

Why use an aluminium clamp instead of a free printed splicer?

Heat. A jig printed in PETG or ABS softens when a flame or heat gun is applied repeatedly, and a softened channel lets the two ends drift out of line. Machined aluminium does not soften at lighter temperatures, so the channel keeps the same alignment splice after splice. A printed jig is still a reasonable free option for the occasional PLA joint.

Will a spliced joint feed through the AMS?

Usually, if the joint is trimmed and measured first. Flash left around the seam adds diameter, and the AMS pushes filament through a longer path with more junctions than a direct drive feed, so an oversized or oval joint is the one that catches. Trim with flush cutters and check the joint with calipers before winding it onto a spool.

Why Shop with Call3D ?

Buy with confidence from an experienced 3D printing team offering carefully selected products, clear compatibility guidance, responsive support, and transparent order fulfillment.

Support FAQ

What Should I Buy from Call3D?

Call3D is particularly valuable when you are looking for:

Carefully selected third-party accessories, mods, and upgrades for Bambu Lab printers;
Compatibility-sensitive parts that require clearer model, version, or installation guidance;
Specialized solutions that may be difficult to identify on general marketplaces;
Newly released or locally unavailable Bambu Lab products;
Multiple accessories that can be combined into one order.

Every product we list is selected for a clear functional purpose, with compatibility, installation requirements, and known limitations reviewed before publication. Our goal is to help customers choose the right solution—not simply offer the largest possible catalog.

Why Call3D over a Marketplace?

General marketplaces may offer a large number of similar-looking products from different sellers, making it difficult to evaluate compatibility, product quality, and after-sales responsibility.

Call3D operates as a specialist curated store. We review a product’s purpose, compatibility, installation requirements, and available technical information before listing it. If customers need help before ordering or encounter a problem afterward, they can contact the same team that selected and documented the product.

We focus on long-term customer relationships, clear communication, and responsible after-sales support rather than a one-time transaction.

How can I track my order?

You will receive a YunExpress order number immediately after your order ships.Use this number to track the package from our warehouse to your destination country.
For the following countries, you will also receive a corresponding local tracking number.Please use the official website of the local carrier for real-time delivery updates:

United States: USPS
Germany & Netherlands: DHL
United Kingdom: Evri
Spain: CTT
France: Colis Privé

For all other regions: Only a YunExpress tracking number will be provided (no local carrier tracking available).

How long will my order take to arrive?

Call3D normally prepares and hands over orders to the carrier within 48 hours. In September 2026, 51 completed deliveries averaged 4.0 business days in transit from carrier acceptance to delivery.

Recent US deliveries averaged 4.1 business days in transit, while completed deliveries across eight observed EU destinations averaged 4.3 business days. These figures do not include Call3D’s order-preparation time.

These are recent observed averages rather than guaranteed delivery dates. Actual timing may vary depending on the destination, customs processing, holidays, and local carrier operations.

Do you ship to my country?

Call3D currently serves customers in 36 countries and regions:

European Union: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, and Sweden.

Other destinations: Australia, Canada, Israel, New Zealand, Norway, Singapore, Switzerland, the United Kingdom, and the United States.

If your destination is not listed, please contact Call3D before placing an order. We will assess shipping availability, customs requirements, taxes, and applicable local regulations, then confirm whether we can serve your location. Delivery to an unlisted destination is not guaranteed until confirmed by our team.

What is your return policy?

Eligible unused items in their original condition and packaging may be returned within 30 days of delivery. Please contact Call3D for approval before returning an item. Refunds are issued to the original payment method after inspection; return shipping costs apply.⁠⁠

View the Complete Return & Exchange Policy →

Duties, VAT & Sales Tax

Call3D product prices include applicable import duties. For orders delivered to the European Union, applicable VAT is also included in the displayed price. Customers should not normally be required to pay additional import duties or VAT upon delivery.

For orders delivered within the United States, applicable state and local sales tax is calculated based on the shipping address and displayed at checkout before payment. Call3D collects sales tax only in jurisdictions where it is required to do so under applicable tax rules. If no sales tax is shown at checkout, Call3D is not collecting sales tax for that order.

If you receive an unexpected request for import duties or VAT, please contact Call3D Support before making an additional payment.

Call3D Store & Service Reviews

Found this shop on Reddit, chatted with a real person about the P2S filter I needed. Asked if they could ship to SG, they checked and made it happen! Super happy because this filter is basically impossible to find locally and always out of stock everywhere else. Fast, friendly, and solved my problem perfectly. Will buy again!

Ok_Government_1125

Hobbyist in Singapore
I’ve known Enderwick since 2014 and worked alongside him for many years. With over a decade in the industry, he and his team bring an extremely high level of expertise.He has built an enormous 3D printing community here in China and is always coming out with new solutions—each one never fails to impress me.

Daniel O'Connor

Deputy Vice President of TCT Magazine
The support offered after i wrote about a defective product was nothing short of exemplary, i applaud Call3D and its support team who fixed my problem swiftly, and made sure to take notice!

Tommaso Pasquali

Operational Quality Sterile Lead
When EP invited me to Shenzhen back in 2019, I was absolutely blown away by the hardware innovation coming out of China. Just one year later, Bambu Lab burst onto the scene—and their solutions have grown right alongside Bambu, evolving from the very beginning to where they are today.

Chris Connery

VP for Global Analysis at CONTEXT
Decent and helpful staff - customer service is outstanding. Secure payment and fast shipping. The items are of great quality. Highly recommended!

Oliver Fodor

Technical Manager
Bought a ventilation system but changed my mind last minute. I thought returns would be a huge hassle, but they told me there’s a return warehouse in Houston only about a 10-minute drive from where I live in Missouri City. Drove over and returned it super easily. Super convenient return process, great experience overall!

RayRobert

Project manager

Filament Splicer – Call3D Filament Welding Tool

$19.99

Filament Splicer – Call3D Filament Welding Tool