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MartilloTech

CoolDry Pro Extruder Cooler for Bambu Lab Printers

CoolDry Pro Extruder Cooler for Bambu Lab Printers

Dry, chilled air to help reduce heat creep and extruder jams.

Clog-Resistant Hot-Weather Printing

Prevents heat creep and extruder jams for PLA, TPU 85A, and PVA in ambient temperatures ≥30°C (86°F).

Expanded Material Workflows

Feeds dry, chilled air directly into the extruder to support mixed-material, soluble-support, and soft TPU workflows without lowering overall chamber temperature.

$259.90
$259.90
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The CoolDry Pro 2 extruder cooler delivers dry, chilled air directly into the extruder through the stock filament feed path on supported Bambu Lab printers. Designed for enclosed 3D printing, it establishes a sharp thermal barrier at the cold zone without lowering the chamber temperature.

In hot ambient environments of 30°C / 86°F and above, this targeted cooling helps prevent heat creep while allowing the printer door to remain closed. It supports demanding dual-material printing workflows, including PVA supports for ABS or TPU, PLA-on-PETG breakaway supports, and printing with ultra-soft TPU 85A.

During high-flow printing, the CoolDry Pro 2 also helps prevent stepper motor overheating and gear slipping. Its approach focuses cooling where it is needed rather than cooling the entire enclosed printing chamber, making it suitable for workflows that need both a warm chamber and a controlled extruder cold zone.

Built-in auto-drain, optical sensing, and quiet operation below 48 dBA round out the design. Closed-door operation keeps ultrafine particles, fumes, and printer noise inside the enclosure. Check compatibility with your Bambu Lab printer before choosing this extruder cooler for your setup.
  • 90-Day Warranty
  • 30-Day Return
  • 7-Day Delivery
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CoolDry Pro 2 3D Printer Cooler Overview

Better Than 1st Gen: Built for Unattended 24/7 Production

- Smart Auto-Drain System: Industrial water-gas separator and auto-drain float eliminate the hassle of manually monitoring and emptying condensate collection bottles
- Multi-Sensor 24/7 Safety Suite: Built-in optical water-level sensing, cold-end anti-frost detection, and thermal tracking ensure reliable, uninterrupted multi-day printing
- Boosted Airflow & 2× Performance Mode: Delivers higher base airflow (~12 L/min) for enhanced heat dissipation, plus a long-press 2× Performance Mode for high-demand jobs
- Sleek Injection-Molded Enclosure: Upgraded from the 1st-gen 3D-printed shell to a durable, precision-finished ABS injection-molded housing for a sleek industrial look

Product Specification

  • Operating mechanism: Direct-path dry cold air delivery via stock filament feed tube
  • Input voltage: AC 100–240V, 50/60Hz
  • Rated power: 60W
  • Adapter output: 12.0V 5.0A DC, 60W (UL / CE / FCC / UKCA listed adapter)
  • Airflow volume: ~0.42 CFM (12 L/min)
  • Delivery pressure: about 2.9 psi (20 kPa) above ambient
  • Noise: <48 dBA in Default mode
  • Modes: Default; Performance (long-press; 2× airflow)
  • Dimensions: 6.85 × 8.19 × 2.91 in (174 × 208 × 74 mm)
  • Net weight: 2.49 lb (1130 ± 10 g)
  • Condensate system: industrial water-gas separator, 50-micron filter, auto-drain float
  • Smart Monitoring Suite: cold-end anti-frost monitoring, optical water-level sensor, heat-dissipation thermal sensor, intelligent algorithm control
  • Compatible printers: Bambu Lab A1 / A1 mini; H2S / P2S / P1S / X1C; X2D / H2D / H2C
  • Typical use case: high-ambient (≥30°C/86°F) PLA/TPU printing, high-chamber (50°C/122°F) dual-material printing, high-flow motor cooling
  • Optional accessory: temperature-controlled outlet (sold separately); suggested start 113°F (45°C), stop 109°F (43°C)

Package Includes

- MartilloTech power adapter × 1 (AC 100–240V in, 12.0V 5.0A 60W out)
- 21.7 in (550 mm) anti-fouling coated silicone tubes × 2
- Intake tee × 1
- Relief / vent fitting × 1
- 13.8 in (350 mm) black PTFE sealing tube × 1
- 21.7 in (550 mm) white PTFE tube × 1
- Nylon cable ties × 6
- Connecting air tubes × 4
- Installation fitment guide × 1
- User manual × 1
- Not included: H2 intake 5-way kit (H2D / H2C), X2D intake 5-way kit, magnetic A1 front cover (A1 / A1 mini), temperature-controlled outlet

Requirements & Installation Notes

  • Cleaner, safer closed-door printing: Keeps chamber closed to contain toxic fumes, VOCs, odors, noise, and billions of airborne ultrafine particles (UFPs) without risking heat creep
  • Prevents motor overheating in high-flow setups: Keeps extruder stepper motors cool to eliminate gear slipping and filament grinding during demanding high-volumetric extrusion
  • Smart Monitoring System: Features cold-end frost monitoring, optical water-level sensing, thermal dissipation tracking, and intelligent algorithm control

Explore Precision Upgrades for Your Bambu Lab

Explore Precision Upgrades for Your Bambu Lab

Explore Precision Upgrades for Your Bambu Lab

Explore Precision Upgrades for Your Bambu Lab

Frequently Asked Questions About CoolDry Pro 2 3D Printer Cooler

How do auto-drain and optical water-level sensing work?

2nd-gen CoolDry Pro cools room air, then an industrial water-gas separator removes condensate through a 50-micron filter and an auto-drain float so the unit can run multi-day / 24-7 jobs without emptying a bottle on a timer. Optical water-level sensing is the fail-safe: if the drain path clogs, the unit is designed to stop overflow from reaching printer components. An optional temperature-controlled outlet (sold separately) can auto start around 113°F (45°C) and stop around 109°F (43°C) so the pump is not running when the chamber is cold.

What printers does it fit, and what extra parts do I need?

CoolDry Pro is designed for Bambu Lab A1 / A1 mini, H2S / P2S / P1S / X1C, and X2D / H2D / H2C. P2S / P1S / X1C use the included intake tee and tubes. H2D / H2C need the H2 intake 5-way kit; H2S uses the included 3-way and does not need the 5-way. X2D needs the X2D intake 5-way kit — on X2D the right nozzle is remote-extruded, so CoolDry Pro mainly protects the filament path; for PLA above about 118°F (48°C) chamber, a more heat-tolerant PLA such as Polymaker PLA is recommended. A1 / A1 mini need the magnetic A1 front cover. Confirm toolhead travel is not restricted by tubing at all four corners before printing.

How is CoolDry Pro different from adding a toolhead fan?

A conventional toolhead fan typically circulates air from inside the printer. CoolDry Pro supplies dry, chilled air from an external unit through the filament feed path, targeting the extruder and incoming filament rather than cooling the entire chamber.

Does CoolDry Pro fix every type of extruder clog?

No. CoolDry Pro is designed to help reduce heat-related filament softening and extruder jams by delivering dry, chilled air through the filament feed path. It does not address every cause of clogging. Check filament condition and diameter, PTFE tube wear, extruder cleanliness, and hotend condition before assuming heat is the cause.

 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! 
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     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's Profile
     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! 
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     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.  
    testimonial author avatar
     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! 
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     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! 
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     RayRobert 
     Project manager 
  • 5 stars: 1 (25%)
  • 4 stars: 1 (25%)
  • 3 stars: 2 (50%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
M
Macualey4
Excited About My P1P but ASA Clogs Happen I bought one and a pump set I got used for cheap. I'm ...

I bought one, plus a used pump set—got them cheap. I’m pretty excited to see how it goes. My P1P is insulated, and when printing ASA with a chamber temperature of 65°C, I often get clogs if the flow rate isn’t high enough, like when printing tree supports.

M
Mo Chaopiao
Balcony 3D Printing Saved My Summer The first summer after buying a 3D printer, I experienced my ...

The first summer after buying my 3D printer, I ran into my first extruder clog. At first, I figured it was the new filament—maybe it was low quality. But then I tried the old filament, and the same thing happened. Taking apart the extruder was such a hassle. Finally, it hit me: maybe it was too hot? Sure enough, leaving the door open while printing fixed it. Since the printer was on the balcony, I didn’t mind leaving the door open at all.

Later, the company got one too. We couldn’t stick it on a balcony, though, and printing ABS reeked *so* bad. So we ended up buying a set [to fix that].

R
Rabbit's 3D Printing Workshop
Central Air Pump for Hotend Cooling Actually, when I saw the built-in air pump in the Bamboo H2D ...

Actually... When I saw that the Bamboo H2D Laser Version has a built-in air pump, I started thinking—what if we removed all the hotend fans and used a single large air pump for centralized air supply instead? We could just install a valve near the hotend to control it, and the response speed would probably be faster than with cooling fans too.

S
StarBlueFeatherxx
Extruder Cooler Saved My X1C Prints Shoutout to the creator! I have an X1C that's always been in...

Shoutout to the creator! I have an X1C, and I always print with the enclosure closed—PETG at 280°C and PVA at 240°C. I bought the two-year-old version of this extruder cooling setup a while back, and honestly, didn’t really notice a difference when using it.

That is, until I moved last month and forgot to bring the extruder cooler with me. Suddenly, every single print was clogging—*every time*. Then once I hooked the cooler back up? Problem solved, worked like a charm again.

Also, quick rant about Bambu Lab’s PETG HF: if the chamber temp gets too high, it clogs *so* easily. No wonder they ended up discontinuing it later!

CoolDry Pro extruder cooler with dry, chilled air delivery, automatic condensate drainage, and sensor monitoring

CoolDry Pro Extruder Cooler for Bambu Lab Printers

$259.90
$259.90