Project Dashboard Accessories and Upgrades LulzBot Mini 2 LulzBot HS Tool Head Installation Workflow

1 Getting Started

Follow the instructions below to quickly install your HS 0.8 mm Hardened Steel Tool Head on a LulzBot Mini 2 3D Printer.

HS 0.8 mm Tool Head

2 Included Materials

(1) LulzBot HS Tool Head (Fully Assembled)
(1) Sample of LulzBot Green IC3D PETg filament
(1) Double Wiper Pad Mount
(5) Wiper pads
(1) Red Scotch-Briteā„¢ scrubber pad

HS 0.8 mm Included Materials

3 Additional Items Required

Additional Items Required

  • 2 mm Driver
  • 2.5 mm Driver
  • USB cable, included with your LulzBot Mini 2
  • GNU/Linux/Windows/Mac-based computer
Additional Items Required

4 Power off your 3D printer

Power down


Turn Off Printer

5 Remove Connector Cover

Remove screws

Lift cover

Locate Screws
Remove Cover

6 Disconnect Tool Head

Depress the retaining tab on the connector housing and gently wiggle the connector free. Do not pull on the wires, only the connector housing.

Depress tab

7 Remove Tool head

The tool head is attached with three screws. The print surface can be damaged if the tool head is allowed to fall onto the print surface. With one hand, support the tool head while following removal steps below.

Using the 2.5mm hex key, unscrew the three M5 screws securing the tool head to the X-axis carriage. Remove the rear screw first, followed by the remaining top two screws.

Remove the tool head from the printer by moving the tool head away from the printer.

Note: In previous versions of our tool heads, the Esteps (Extruder Steps Per Unit) were listed along the back of the tool heads for the customer to update. For the new HS tool head however, the Esteps are now set up within the firmware, and no manual updates are required.

Remove screw on back
Remove Top Screws

8 Mount the Tool Head

Press the tool head onto the X-axis carriage, aligning the cutouts on the back of the new tool head. Do not pinch any wires between the mount and the carriage.

Secure it to the X-axis carriage by loosely screwing in the top two screws. Leave the top two screws loose.

Loosely screw in the last screw through the rear of the X-axis carriage.

Tighten the top two screws.

Tighten the rear screw.

Align tool head
Install top two screws first

9 Plug in tool head

Connect the two connectors, making sure to fully seat the connectors until they lock.

Locate connector and tabs
Properly Connected

10 Install Cover

Cover the connector with the connector cover and attach it to the X-axis carriage using the three M3 screws and the 2.5 mm hex key.

Channel the wires together going to down the vertical pathway on the cover mount, and try not to pinch any of the wires when securing the cover. Slide down carefully into place, and hold while screwing in.

Install cover

11 Install double wiper pad

Using 2 mm driver, remove original wiper pad mount.

Using 2 mm driver, install the new wider wiper pad mount using the 2 original M2.5 screws.

Remove old wiper pad mount
Install new wider wiper pad mount

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.

Cura LulzBot Edition is available from

Plug in your LulzBot Mini 2 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.

Install Cura on your computer
Power on your printer

13 Set up new tool head

In the top right-hand menu for Cura LE, Select the Settings drop-down arrow > Printer > Add Printer

Select LulzBot Mini 2, HS | 0.8 mm, and click Add Printer.

Select Finish.

Add printer to Cura
Select tool head
Select Finish

14 Update Firmware

From the drop-down menu at the top right-hand side of Cura LE, Select Manage Printers

Confirm that the LulzBot Mini 2 | HS | 0.8 mm is selected, and click Upgrade Firmware.

Select Automatically Update Firmware. The Update EEPROM checkbox should be checked by default. Close any dialog windows after the firmware has been updated.

Upgrade firmware

15 Set hot end temperature

Select Print Monitor Control Tab from the menu above the virtual print interface.

Click Connect.

Type 205 into the Select temperature field.

Select Heat Extruder.

Select the Monitor tab
Select Connect
Heat extruder

16 Remove Factory Calibration Filament

Note: Always heat the hot end to extrusion temperature before attempting to remove filament. If switching between different material types, set the hot end to the approximate average extrusion temperature of the two materials.

Once the hot end has reached the extrusion temperature of 205, remove the test filament used during factory calibration by entering 5 for the Extrusion amount in Cura LE. Click the Extrude button. Change the value to 60 and click the Retract button.

Once filament has retracted 60 mm, squeeze idler inwards, and pull the filament out. You may need to loosen the idler slightly by turning the silver idler wheel clockwise.

Tighten the idler by turning the silver idler wheel counter-clockwise if loosened.

Extrude 5mm
Retract 60mm

17 Load Filament

Filament Loading Tip: Cutting the filament at an angle will help with inserting into the extruder.

Load the sample filament into the extruder. Squeeze the idler arm inward and insert the filament into the extruder filament guide.

Enter 60 in Extrusion amount and click the Extrude button.

Purge factory filament by continuing to select the Extrude button until the hot end extrudes material.

Level the X-axis by clicking the Level X Axis button.

Cut filament at an angle
Squeeze arm and insert
Extrude 60mm
Leveling will cause a grinding noise which is normal

18 First Print!

Your first print: the LulzBot Carbon Fiber Wrench: Download and Save

Load the first print model

Select the sample material: PETg and the Profile.

Press the Print via USB button to start your print!

Load model, select material, and print!
Done! Take me home