A
Anonymous
Mar 27, 2026
Rating: 5/5
Essential upgrade
Great value for money. The M6x40 size was exactly what I needed for my custom cooling block design.
Description
3D Printer Accessories: Long Throat Tube for Makerbot MK8 Hotend, M6x30, M6x40, M6x50mm
Reviews
Attributes
| Brand | - |
| Category | Livestock & Farming Supplies / Pig Herding Tool |
| Origin | - |
| Material | Stainless Steel |
| Thread Size | M6 |
| Available Lengths | 30mm, 40mm, 50mm |
| Compatibility | Makerbot MK8 Hotend |
| Inner Diameter | 2.0mm |
| Outer Diameter | 6.0mm |
| Surface Finish | Polished |
| Heat Resistance | Up to 300°C |
| Package Contents | 1x Long Throat Tube |
| Weight | 15g |
6 reviews
A
Anonymous
Mar 25, 2026
Rating: 5/5
Robust construction
Very solid piece of hardware. The polished interior helps filament glide through without resistance. Will buy again.
A
Anonymous
Mar 22, 2026
Rating: 5/5
Perfect fit for my MK8 setup
The threading is precise and the length options allowed me to customize my hotend perfectly. No more clogs with flexible filaments.
A
Anonymous
Mar 15, 2026
Rating: 5/5
Solved my retraction issues
Switching to this longer throat tube significantly improved my print quality with PLA. Highly recommend for anyone modifying their extruder.
A
Anonymous
Mar 04, 2026
Rating: 4/5
Good quality, slight installation tightness
The steel feels durable and high quality. It was a bit tight to screw in initially, but once seated, it works flawlessly.
A
Anonymous
Mar 02, 2026
Rating: 4/5
Works well after calibration
Had to recalibrate my E-steps after installation, but the print results are much smoother now. Good product.
5 FAQ
Q: What is the maximum temperature this can withstand continuously?
A: The stainless steel construction can safely handle continuous operation up to 300°C, which covers most standard printing materials including ABS and Nylon.
Q: Is this compatible with E3D V6 hotends?
A: This specific tube is designed for Makerbot MK8 hotends. While dimensions may seem similar, we recommend checking your specific thread pitch and seating depth before attempting installation on E3D systems.
Q: Do I need PTFE tape for installation?
A: Generally, no. The M6 threads are designed to seal metal-to-metal. However, if you notice minor leaks, a small amount of high-temperature thread sealant can be used, but avoid getting any inside the bore.
Q: Which length should I choose for printing TPU?
A: For flexible filaments like TPU, the 50mm option is often preferred as it provides a longer thermal break, reducing the chance of the filament softening too early in the path.
Q: Does this come with a heat sink or just the tube?
A: This listing is for the long throat tube only. The heat sink and heater block are not included.
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