Project Dashboard Accessories and Upgrades Preparing your LulzBot TAZ 4 Second Extruder Port Workflow

1 Upgrade your LulzBot!

Your LulzBot® TAZ 4 3D printer needs to have an additional wiring jumper installed to be compatible with our upgraded v2 dual extruder tool heads.

This jumper will power the 5v fan that cools the second LulzBot Hexagon Hot End.

LulzBot TAZ Dual Extruder v2 Tool Head
LulzBot TAZ FlexyDually v2 Tool Head

2 Items required

You may also need an additional tool head adapter to bridge between the 2 wire/2 pin fan connector and the 2 wire/3 pin connector.

Contact our Support Team for more information by sending an email to Support@LulzBot.com.

Internal Blower Harness Add-on (EL-HR0064)

3 Power off your LulzBot 3D printer

Completely power off your LulzBot 3D printer, unplug the USB cable, and unplug the power supply before proceeding.

Power off yout TAZ 3D printer, disconnect the USB cable

4 Remove second extruder harness cover

Unscrew the cap on the second connector cover found on the top of the control box.

Unscrew second extruder cap

5 Remove control box cover screws

5A
Remove the four (4) M3 screws on each corner of the control box.

5B
The control box cooling fan is mounted to the cover. Take care when removing the lid.

Remove the four corner screws

6 Note fan wiring polarity and unplug control box fan

6A
Note the fan wiring polarity.

6B
Unplug the fan and set the lid aside.

Control box lid

7 Insert hex key into pin 5 slot

7A
In step 8 we will use a 2mm hex key to guide the new connector pin into the connector socket.

7B
Insert the long side of the 2 mm hex key into the pin socket indicated by the green dot in the image.

Insert hex key into the empty pin 5 slot

8 Insert red wire into pin 5 slot

8A
Use the hex key as a guide to insert the red wire connector into pin 5 of the connector socket.

8B
Place the red wire connector pin over the exposed tip of the hex key.

8C
Slide the connector firmly upwards. You may need to rotate the pin slightly to allow it to slide into place.

Slide pin into socket

9 Insert hex key into pin 6 slot

Insert the long side of the 2 mm hex key into the pin socket indicated by the green dot in the image.

Insert hex key into the empty pin 6 slot

10 Insert black wire into pin 6 slot

10A
Use the hex key as a guide to insert the black wire connector into pin 6 of the connector socket.

10B
Place the black wire connector pin over the exposed tip of the hex key.

10C
Slide the connector firmly upwards. You may need to rotate the pin slightly to allow it to slide into place.

Slide pin into socket

11 Plug in new connector

11A
Insert the two-pin connector on the pins on the RAMBo as shown, making sure that the latching side of the connector is facing upwards.

11B
Note: If you have previously used a tool head equipped with a LulzBot Hexagon Hot End on your LulzBot 3D printer, unplug the micro-blower fan wires from the RAMBo and plug in the new jumper.

Plug in new connector with the latch facing up!,

12 Note polarity and plug in control box fan

Plug in the control box cover, making sure to orient the connector so the red wire is to the left, and the black wire is to the right.

Plug in control box fan. Red wire to the left, black wire to the right.

13 Install control box cover

13A
Replace the control box cover, making sure that none of the wires are interfering with the control box fan.

13B
Secure the control box cover with four M3 screws, one in each corner.

Replace cover and secure with 4 M3 screws.

14 Continue with your TAZ 5 dual extruder guide

Now that your second extruder connector is ready, continue with our TAZ 5 install guide:

Ready to fully upgrade your LulzBot TAZ 4 into a LulzBot TAZ 5?

Upgrade your print surface with our replacement LulzBot TAZ PEI sheet!

LulzBot TAZ Dual Extruder v2 Tool Head
Done! Take me home