Project Dashboard Accessories and Upgrades TAZ Pro Twin Nebula Tool Head Installation Workflow

1 Getting Started

Follow the instructions below to quickly install your new Tool Head on a LulzBot TAZ Pro 3D Printer.

This guide will walk you through the process of installing the Twin Nebula Tool Head on a Pro S with a single extruder Tool Head installed.

If you are installing the Tool Head onto a TAZ Pro with a Dual Extruder already installed, please follow steps 1-8 of the TAZ Pro Tool Head installation guide for removing the Dual Extruder Tool head before returning to Step 9 of this guide.

Getting Started

2 Included Materials

Included with the Twin Nebula Tool Head will be:

  • left harness extension
  • right harness extension
  • 2x PTFE guide tubes.

These feed tubes will be dependent on the diameter of compatible filament used in your Twin Nebula Tool Head. (1.75mm or 2.85mm)

Tool Head and harnesses

3 Additional Items Required

You will also need

  • LulzBot TAZ Pro desktop 3D printer
  • 2.5 mm hex key
  • Computer Connection
Additional items required

4 Position Z-Axis

Power on the LulzBot TAZ Pro 3D Printer.

Home the 3D printer by using the LCD touch screen. Press Home All from the main window on the LCD.

Adjust the position of the Tool Head using the LCD touch screen menu so that is about 150-200 mm above the print bed and close to the middle of the X-axis.

Bed positioned

5 Power off your 3D printer

Once the Tool Head is position, turn the printer off.

Unplug the AC power cable from the wall outlet, then unplug from the rear of the printer.

Unplug the USB cable (if installed).

Power off printer
Unplug printer

6 Remove Carriage Cap

If the Tool Heads PTFE tube is still attached, remove from Tool Head.

Locate and remove the single m3 on the top of the tool head cover. using the 2.5mm hex wrench.

Lift the Tool Head cover up and off of the tool head.

Remove ptfe tube
Unscrew carriage cap
Remove carriage cap

7 Disconnect Tool Head

Locate the black connector above the Tool Head.
Depress the retaining clip and carefully pull the two halves apart.

Depress pin and pull apart
Connected disconnected

8 Remove Tool Head

Using the 2.5mm hex wrench, remove the two stainless steel m3 screws that are located above the Tool Head.

Turn the printer around and locate the stainless steel screw at the back of the x-carriage.
Support the Tool Head with your hand and unscrew the rear m3 screw using the 2.5mm hex wrench.

Move the Tool Head away from the printer and place someplace safe.

Remove the e1 extension harness from back of the x-carriage and set aside.

Remove top screws
Remove rear screw
Remove tool head
Rear extension harness
Extension harness removed

9 Mount Twin Nebula Tool Head

Hold new Tool Head in place while screwing in both top Tool Head mounting screws loosely using the 2.5 mm hex key.
Do not tighten completely.

While still supporting the Tool Head, screw in the tool head mounting screw completely on the back of the X-axis carriage using the 2.5 mm hex key.

Tighten down the two Tool Head mounting screws

Place tool head on carriage
Loosely secure top screws
Secure rear screw
Fully secure top two screws

10 Connect Left Harness

Locate the left harness extension. One side of the extension will have 1 connector, and the opposite side will have 2 connectors.

Carefully plug in the single connect side of the extension into the left harness that comes from the Tool Head.
Do not force the connector. place the halves together and gently wiggle the connectors to seat all of the pins.

Turn the printer around and locate the opposite side of the extension harness and plug the larger connector into the back of the x-carriage.

Plug the smaller connector into the x-carriage directly above the large connector.

Harnesses
Left harness
Connecting harnesses
Left harness connected
Rear lower connector
Rear upper connector
Rear connectors fully connected

11 Connect Right Harness

Locate the right harness extension. One side of the extension will have 1 connector, and the opposite side will have 2 connectors.

Carefully plug in the single connect side of the extension into the right harness that comes from the Tool Head.
Do not force the connector. place the halves together and gently wiggle the connectors to seat all of the pins.

Turn the printer around and locate the opposite side of the extension harness and plug the larger connector into the back of the x-carriage.

Plug the smaller connector into the x-carriage directly above the large connector.

Harnesses
Right harness
Connecting harnesses
Right harness connected
Rear lower connector
Rear upper connector
Rear connectors fully connected

12 Install or update Cura LE

Install the latest version of Cura LulzBot Edition. It is important to have the LulzBot Edition of Cura, as it has preset machine configuration profiles built into it.

The Twin Nebula is only compatible with Cura LulzBot Edition version 4.13.9+.

Go to LulzBot.com/Cura to install Cura LulzBot Edition.

Plug in your LulzBot TAZ Pro 3D printer to the power supply and power on your 3D printer.

Once powered on, connect your 3D printer to your computer using the USB cable.

Open Cura LulzBot Edition.

Cura LE

13 Set up new tool head

Select Settings dropdown > Printer > Add Printer

Select LulzBot TAZ Pro (S) in the first column, then the appropriate Twin Nebula Tool Head in the second column, and click Add Printer.

Select Add.

Add printer
Set up and add to Cura

14 Update Firmware

Select Monitor from the Cura LE main page.

Click Firmware Update on the right side of the window.

Select Update Firmware.

Update firmware location
Automatically update firmware

15 Select Tool Head on Printer LCD (if applicable)

If installing the Twin Nebula 285, you will need to select the correct Tool Head via the printers LCD.

Navigate to the first menu screen on your printers LCD and select the Tool Heads menu.

Locate the Twin Nebula 285 Tool Head and select it.

Pro LCD
Tool head menu

16 Insert New Filament

Heat the Tool Head up to extrusion temperature via the printers LCD or through Cura.

Once the Tool Head reaches the appropriate filament temperature, Push the filament tension lever to the left.

Start by inserting filament into the runout sensor and feeding it all the way through the PTFE guide tube.

Straighten the filament slightly and begin feeding the filament into the extruder.

Move the tensioning lever 1 position to the right to engage the gears onto the filament.

Push down the PTFE guide tubes to lock them into the extruders.

NOTE
In order for the runout sensor to function correctly, the filament inserted into the green side of the sensor MUST be routed into the left side extruder on the Tool Head. Failure to route the filament from a specific side of the runout sensor to the correct side of the Tool Head will result in filament extrusion errors.

Tensioning guide for LGX extruders
Insert E1 into sensor
Insert E2 into sensor
Both filaments inserted
Insert filament into E1
Insert filament into E2
Attach PTFE tubes into extruder bodies
Both PTFE tubes connected

17 Enjoy Printing with Your New Tool Head!

You've now finished installation and are ready to start printing!
Try performing a test print!

If you encounter issues please contact Technical Support by emailing Support@LulzBot.com, or by calling +1-701-809-0800.

Done! Take me home