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Master All Materials * Excel With Flexibles
The LGX Shortcut Mosquito Printhead is a special unit that includes the LGX Large Gears eXtruder and the LGX Shortcut short filament path hotend based on Copperhead, that will master all materials and excel with the soft and flexible.

Its main feature is a 23mm shorter filament path than the standard Mosquito.

This LGX Print Head only supports 1.75 mm size filament.

Product Includes:

• LGX® Large Gears eXtruder
• LGX Shortcut Mosquito Hotend

Designed To Be Flexible
The LGX Shortcut Mosquito Hotend includes a reversible heat sink that can be installed on the left or right hand side of the cold block. The heat sink also includes the hole pattern for attaching 40×40 fans.

Cooling down the heat break
Our tests suggest a 4010 fan is enough to cool down the cold block and the cold zone of the heat break, even with such small contact surface to the heat sink.

In case you have an application where additional cooling is required, try using a 4020 fan or 2 LGX heat sinks, one on each side.

Main Advantages

• Gives access to all available materials.
• Enables to print flexible and soft materials faster.
• It is small and light.
• Allows mounting in many different ways.

Compatible nozzles
The hot block included in this product is compatible with the RepRap standard of nozzles.

Technical Specification
LGX EXTRUDER

• e-steps value : 400 using 16 microsteps; 800 using 32 microsteps.
• Drive wheels : hardened steel;
• Materials compatibility : abrasive; rigid; semi-flexible; flexible; and soft.
• Mounting holes : M3
• Mounting patterns : bottom anterior (2 points); left (2 points), right (2 points), front (4 points), back (4 points)
• Holes on the sides of the LGX™ : 5 mm depth
• Holes on the bottom of the LGX™ : 12 mm depth
• Max tightening torque on the extruder screws is 0.3 Nm

USING A PLATE BETWEEN THE EXTRUDER AND THE STEPPER MOTOR

• Max thickness : 2.6 mm
• Optimal Thickness : between 0.3 and 2.3 mm;
• Optimal Thickness allows full teeth engagement between the motor gear and the main double gear.

For Klipper users

• rotation_distance = full_steps_per_rotation * microsteps / steps_per_mm
• rotation_distance = 200 * 16 / 400
• rotation_distance = 8

The above calculation assumes the following parameters:

stepper motor is a 1.8 degrees motor hence 200 as full steps per rotation;
microsteps are set to 16;
e-steps value recommended for the LGX is 400.

Although we recommend to use the rotation_distance instead of the gear_ratio, we inform the LGX gearing ratio is 44:14, 37:17.

To use the LGX directly attached to the hotends listed below, PTFE tube lengths should be:

• Old Mosquito/Mosquito Magnum : 10 mm
• New Mosquito/Mosquito Magnum : 11 mm
• Copperhead screw mount : 30 mm

PTFE tube should be cut straight on both ends. Slight chamfer inside is recommended, but not mandatory.

• retraction speed : 35 mm/s
• retraction distance (bowden) : ~5 mm (0.4 + tube length[mm] x 0.015)
• retraction distance (direct drive) for rigid materials : 0.4 mm
• retraction distance (direct drive) for soft materials : 3 mm
• Max Environment operating temperature : 70°C
• Max stepper motor running temperature (using LGX) : 80℃
• Recommended stepper motor Current (using LGX) : 0.45 to 0.60 A
• LGX™ DD net weight : 218.6 g
• LGX™ B net weight : 224 g
• Package measurements : 80x103x73 mm
• Package weight : 269 g

Buy a LGX Shortcut Mosquito Printhead from Spool3D for your 3D printing in Canada without the surprise cost of the exchange rate!