Project Dashboard Accessories and Upgrades LulzBot TAZ Dual Extruder Tool Head v1 Installation LulzBot TAZ 5 Workflow

1 Before Beginning

Parts Needed

Tools Needed

  • 2.5mm driver
  • 4mm driver
  • Pliers, scissors to cut wire ties

Downloads needed

Additional harness may be required

The LulzBot TAZ 5 3D printer has two versions. The original LulzBot TAZ 5 3D printer was equipped with a 0.35mm nozzle. The hot end and extruder wiring harness has 4 connectors.

The LulzBot TAZ 5 3D printer with 0.50mm nozzle has a hot end and extruder wiring harness with a single 16 pin connector. If your LulzBot TAZ 5 3D printer has the 16 pin connector, contact our support team by sending an email to Support@LulzBot.com with your order number, contact and shipping information. The required harness will be sent to you.

LulzBot TAZ Dual Extruder v1 Tool Head
Items included
Recommended tools
Not Included: 16 pin adapter

2 Remove Current Toolhead

  • Power down the LulzBot TAZ 3D printer and unplug from any USB connection.
  • Disconnect the four wiring connectors for the hot end and the extruder motor from the wiring harness.
  • Disconnect the fan connector.
  • Using the 2.5mm driver remove the M3 screw and washer.
  • Save the M3 screw and washer.
  • Lift off the current tool head.
Disconnect connecftors
Remove screw and washer

3 Mount the Dual Extruder Toolhead

  • Slide the tapered bottom of the dual extruder into the extruder mount.
  • Secure with the M3 screw. DO NOT over tighten.
Slide tool head into groove
Secure tool head

4 Install Addtiional Wiring Harness

  • Insert the new additional wiring harness into the electronics enclosure by screwing it into the existing second extruder port, found on top of the electronics case.
Remove second extruder cap
Cap removed
Install second extruder harness
harness insdtalled

5 Secure Hot End Wring

  • Use zip-ties to secure the wiring harnesses to the LulzBot TAZ 3D printer frame.

  • Connect the two extruders to the wiring harness:

    • Connect the rear extruder motor (extruder 0) 4 color wire connector to the 4 color wire connector within the black wiring harness

    • Connect the rear hot end (extruder 0) 2 color wire connector to the 2 color wire connector within the black wiring harness

    • Connect the front extruder motor (extruder 1) 4 color wire connector to the 4 color wire connector within the blue wiring harness

    • Connect the front hot end (extruder 1) 2 color wire connector to the 2 color wire connector within the blue wiring harness

If your LulzBot TAZ 5 3D printer has the 16 pin connector, attach the adapter harness.

Harness secured
16 pin adapter

6 Install Second Spool Arm (optional)

  • Loosen the M5 bolt holding the first spool arm with the M4 driver.

  • Lower the existing spool arm by ~3 inches.

  • Attach 2nd spool arm using drop in fastener. Slide the provided M5 T-nut into the aluminum extrusion approximately 6” above the original spool arm position. Make sure that spools can spin freely on both arms without interfering with each other.

  • Attach 2nd feed tube on original feed tube holder.

Insert T-nut
Secure spool arm

7 Prepare To Load The Dual Extruder Firmware

Cura LulzBot Edition is available from http://LulzBot.com/Cura. Install Cura LulzBot Edition if not already installed on your computer. It is important to have the LulzBot Edition of Cura, as it has preset machine configuration profiles built into it. Plug in your TAZ 3D printer to the power supply and power on your LulzBot TAZ 3D printer. Once powered on connect your 3D printer to your computer using the USB cable. Open Cura LulzBot Edition.

  • Locate your original steps per unit.
    • This can be found in your TAZ printer paperwork on the sheet titled Test Acceptance Record and labelled E0.
    • On your Graphical LCD controller, use the controller knob to navigate to:
      • Configuration > Motion > Esteps/mm and record the 3 digit value.

In Cura LulzBot Edition, Select Machine > Add a new machine.

Cura LulzBot Edition

8 Add new machine

Select your TAZ version: LulzBot TAZ 5.

Click Next to proceed to the next window.

In the nozzle size selection window Select 0.35 mm and press Next to proceed to the next window.

Select Finish and proceed to the next step.

Select LulzBot TAZ 5
Select 0.35 mm nozzle

9 Open machine settings

Select Machine > Machine settings to open the Machine settings window.

Select the tab with the last 3D printer added: LulzBot TAZ 5.

Select the new machine

10 Rename machine profile

Change the 3D printer name by selecting Change machine name.

Change it to: LulzBot TAZ 5 with Dual Extruder v1 (0.5mm nozzles).

Select OK to save the changes.

11 Update Extruder count

Under machine settings update the Extruder Count to 2.

Press OK to save the settings.

12 Flash the new tool head firmware

13 Calibrate your Dual Extruders

Calibrate your Dual Extruder v1 Tool Head offsets and extruder steps per unit by following our Dual Extruder calibration guide.

Done! Take me home