With your TAZ 3D printer plugged into an AC power outlet, power on your TAZ 3D printer.
Home the Z-axis with the Graphical LCD controller (GLCD). Press in the knob and select: Movement > Auto home.
Using the GLCD, select: Movement > Move axis > Move 10mm > Move Z.
Rotate the knob to raise the Z-axis to 240mm.
Using the GLCD, select: Movement > Move axis > Move 1mm > Move Z.
Rotate the knob to raise the Z-axis to 245mm.
Once the Z-axis has finished moving to the shipping 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)
Coil the AC power cable and the USB cord and place inside the Accessory box
Note: RECORD your new tool head esteps! This value is found on a sticker on the rear of the tool head.
Seat the new tool head into the X-axis carriage, allowing the tool head to self-center.
Note: Support the tool head with your hand to prevent it from falling onto the print surface.
Secure the tool head to the X-axis carriage with the M3 screw from the earlier step, screwing it in with the included 2.5 mm wrench.
Update your extruder steps per unit (E steps) through your Graphical LCD controller.
Navigate to: Configuration > Advanced Settings > Scroll down and select Esteps/mm.
Use the control knob on the Graphical LCD controller to adjust the value.
Adjust the Esteps/mm value.
Once set, back out of the menu entries until you can select Store Memory.
Select Store Memory to save the adjusted Extruder Esteps/mm.
Perform a test print! We recommend using one of the sample prints included with your SD card, such as the Rock2pus!