15.2. Installing the Bondtech LGX with Mosquito

(1) 2.0x75mm Screwdriver for hexagon socket screws

(2) 2.5x75mm Screwdriver for hexagon socket screws

(1) Bondtech LGX™ Large Gears eXtruder

(2) Mosquito Hotend or Mosquito Magnum Hotend

(3) PTFE tube

(4) Nozzle

(5) Set of Plastic Parts for LGX Mosquito (filament sensor folder, LGX holder, LGX cover, fan shroud, radial fan holder)

(6) x-carriage, x-carriage back top and bottom, belt holder, x-cable holder

(1) Radial fan

(2) Filament sensor + cable (optional)

(3) Heater

(4) Sunon fan

(5) PINDA2 / SuperPINDA

(6) Thermistor

(7) Nylonfilament (not in the picture)

Caribou 220: 47cm Caribou 320: 57cm Caribou 420: 67cm

(1) 2x M2.5x6mm head cap screws (supplied with Mosquito hot end)

(2) 2x M3x10mm hexagon socket head cap screws

(3) 3x M3x12mm hexagon socket head cap screws

(4) 2x M3x16mm hexagon socket head cap screws

(5) 2x M3x20mm hexagon socket head cap screws

(6) 4x M3x22mm hexagon socket head cap screws

(7) 3x M3x35mm hexagon socket head cap screws

(8) M3x40mm hexagon socket head cap screw

(1) 5x M3 square nuts

(2) 2x M3 washers

(3) 2x M3 nuts

(4) 2x M3x8mm hex drive flat head screws

(5) M3x12mm hex drive flat head screw

(6) 7x M3x16mm hex drive flat head screws

(7) M3x30mm hex drive flat head screw

Insert 3x M3 square nuts into the back of the LGX holder.

Insert 2x M3 square nuts into the botton of the x-carriage.

Route the cable of the filament sensor through this channel. Let the cable stand out about 4cm at the top.

Make sure the cable has the correct orientation. The 3-pin connector goes to the sensor, the 5 pin connector goes to the board.

Slide the hotend into the LGX holder.

Use 2x M2.5x6mm head cap screw to secure the hotend in place.

Cut the PTFE tube to 19.7mm length using the provided cutting tool.

Slide the PTFE tube into the middle hole. Make sure to insert the tube all the way into the top of the Mosquito.

Make sure the chamfered side of the tube shows to the top.

Carefully slide the LGX extruder into place.

Make sure the PTFE tube slides into the hole at the bottom of the extruder.

Use 2x M3x6mm flat socket head cap screws to secure the extruder.

Place the back of the x-carriage against the back of the LGX holder.

Make sure that the cable of the filament sensor sits in the channel of the x-carriage and is not pinched between the two plastic parts.

Use 2x M3x12 head cap screws to screw the parts together.

Attach the cover (as shown in picture 1) to the front of the holder.

Use 3x M3x35mm head cap screws to fasten the cover.

Connect the motor cable to the motor and route the cable through the channel.

Place the extruder on the LGX holder in such a way that (1) the cables are pointing towards the channel and (2) the sticker on the fan is pointing towards the inside of the extruder.

Use 4x M3x16mm flat socket head cap screws to fasten the extruder fan.

Route fan's cable through the channel to the back of the x-carriage.

Push 2x M3 nuts into the radial fan holder.

Place the radial fan holder in front of the cover.

Use a M3x12mm head cap screw to fasten the holder.

Place the screw holes of the radial fan in front of the screw holes of the radial fan holder.

Pay attention to the orientation of the fan.

Use 2x M3 washers and...

2x M3x20mm head cap screws to fasten the fan to the holder.

Insert the PINDA / SuperPINDA into the hole on the side of the holder.

Fasten the sensor with a M3x12mm flat socket head cap screw.

First, route the cable of the radial fan through the channel.

Form a loop with the sensor cable and route it through the channel.

Fasten the loop with a zip-tie to the LGX holder.

Insert the filament sensor into the housing.

Remove the bowden coupler from the extruder.

Place the sensor housing on top of the extruder.

Use a M3x12mm flat socket head cap screw...

...and a M3x30mm flat socket head cap screw to fasten the filament sensor housing.

Insert the bowden coupling into the filament sensor housing.

Attach the cable to the sensor.

Align the bearings with the x-carriage back.

Bring the top holder back into position.

Use 4x M3x22 head cap screws to fasten the back part.

Do not overtighten the screws!

Insert one end of the belt into the x-carriage. It should be inserted half way into the x-carriage.

Route the belt through the x-idler and the x-motor holder (not shown here).

The belt must run through the lower channel of the x-carriage.

Cut the belt so that you can insert the other end of the belt into the x-carriage. Both belt ends should touch each other inside the x-carriage.

Use 2x M3x14mm flat head screws to...

...fasten the belt holder into the x-carriage.

Insert the 2.85mm nylon filament into the hole next to the screw hole.

Use a M3x10mm head cap screw to secure the nylon filament in position.

Route the cables for the fans, the PINDA, the filament sensor cable, and the extruder motor through the hole.

Use 2x M3x16mm head cap screws to...

...fasten the carriage's back bottom part to the x-carriage.

Use a M3x40mm head cap screw to...

...fasten the cable holder to the x-carriage.

Remove the M2.5x5mm head cap screw on the back of the Mosquito.

Apply boron nitride paste to both the heater cartridge and the thermistor cartridge.

Insert the thermistor cartridge into the upper hole.

Insert the heater cartridge into the lower hole.

Fasten the M2.5x5mm head cap screw to secure the cartridges.

Screw the nozzle into the Mosquito heat block.

Fasten a Vanadium nozzle with the 1.5Nm torque wrench.

Align the hole on the back of the fan shroud with the hole on the LGX cover.

Fasten the fan shroud with a M3x10mm head cap screw.