If choosing the unassembled bundle, the following tools are not included and will be needed to assemble the hotend:
- 3 Nm Torque Wrench with 9 mm Open End
- A standard 9 mm wrench can be used
- 0.15 Nm Torque Wrench with 1.5 mm hex bit
- A standard 1.5 mm hex key which is included can be used
- 1.5 Nm Torque Wrench with 6 mm hex socket
- Vise
For more information, see our assembly instructions here.
Unassembled Bundle Includes:
- Mosquito Magnum+ Hot Block
- Mosquito Heat Break
- Mosquito Magnum+ Heat Sink
- Hot Block Hardware
- Hotend Mounting Hardware
- Hotend Wrench Set
- Boron Nitride Thermal Paste
- Optional Heater(s)
- Optional Sensor(s)
- Slice Engineering Sticker
Pre-Assembled Kit Includes:
- Assembled Mosquito Magnum+ Hotend (Air-Cooled, 2.85 mm)
- Installed Heater(s)
- Installed Sensor(s)
- Hotend Mounting Hardware
- Hotend Wrench Set
- Slice Engineering Sticker
Note: Nozzle sold separately.
Free shipping over $100 is available for US customers only. See terms for full details.
Mosquito Magnum+® Accessories
Amazing Hotend
❝Wow, I’m blown away by the performance of the Mosquito Magnum+ Hotend. It Far exceeded my initial expectations. It just flows and flows.❞
Jose G. - Verified Buyer

Thermally Optimized Design
The Magnum+ hot block is significantly larger than its predecessors’, creating a longer melt zone for faster printing speeds and higher flow rate capacity. Filament directly contacts the hot block for maximum heat transfer efficiency. Additionally, the improved structural strength and tapered shape of Magnum+ make it an ideal choice for large format and non-planar printing without adding significant weight.

Unparalleled Performance
With a high-temperature, all-metal design, optimized melt zone geometry, and efficient cooling options, Magnum+ delivers unparalleled performance, enabling you to produce high-quality prints at impressive speeds. With the ability to print PLA up to 88 mm3/s and ABS up to 91 mm3/s, Magnum+ allows you to print faster without compromising quality.

Highly Configurable
Magnum+ is highly configurable and customizable to your printing needs. You can choose from air, liquid, or conduction-based cooling options to select the best cooling method for your printing environment. Magnum+ includes two heater sockets, allowing expandable heating power up to 100W. Magnum+ also features two temperature sensor sockets for safety and redundancy.

Additional Features and Benefits
- Compatible with RepRap style nozzles (M6 x 1.0 threads with a 7 mm thread length)
- Internal geometry tapers, enabling use with standard 1.75 mm filament-specific nozzles and are not designed to be compatible with 2.85 mm specific nozzles
- Compatible with the Convection Shield for Mosquito Magnum+®/Prime™
- Rigid “roll cage” structure for One-Handed Nozzle Change™
- Rated to 500°C
- 100% Made in the USA
Technical Specifications
| Dimensions* | 20 x 25 x 60 mm |
| Mass* | 72 g |
| Cooling | Air |
| Filament Diameter | 1.75 mm or 2.85 mm |
| Temperature Rating | 500°C |
| Maximum Flow Rate Capacity** | 90 mm3/s |
| Nozzle Compatibility | M6 x 1.0 (7 mm thread length) |
| Maximum Heating Power | 100 W (12 or 24 V) |
| Temperature Sensor Compatibility | 15 mm length, ø 3 mm |
| Number of Temperature Sensors | Up to 2 |
| Manufacturing | Made in the USA |
* The dimensions and mass do not include the fans, sensors, heaters, nozzles, or convection shield
** Maximum average volumetric flow rates are given with increased hot block temperatures. Refer to white paper for details on the flow rate testing protocol.
Hotend Comparisons
| The Original Mosquito® | Mosquito® Magnum | Mosquito Magnum+® | Mosquito® Prime™ | |
| Max Flow Rate Capacity | 35 mm3/s (156 g/hr) | 40 mm3/s (179 g/hr) | 90 mm3/s (402 g/hr) | 116 mm3/s (516 g/hr) |
| Nozzle Orifice | 0.2 – 0.8 mm | 0.4 – 1.2 mm | 0.4 – 1.8 mm | 0.8 – 1.8 mm |
| Mass* | 37 g | 41 g | 73 g | 103 g |
| Overall Height* | 41 mm | 41 mm | 60 mm | 88 mm |
| Max Power | 50 W | 50 W | 100 W | 200 W |
| Filament Size | 1.75 or 2.85 mm | 1.75 mm | 1.75 or 2.85 mm | 1.75 or 2.85 mm |
* Air-Cooled Version (1.75 mm); Mass/height includes the heat sink, heat break, & hot block



