Use the H2.0 hex wrench to remove the 7 bottom cover bolts (green marks).
Use the H2.5 hex wrench to loosen the 4 foot pad bolts (red marks).
Disconnect Wires:
Open the cover plate of the bottom cover.
Use the H2.0 hex wrench to release the TYPE-C wire fixing bolts.
Unplug the TYPE-C wire and the Z-axis motor wire.
Remove Power and Other Wires:
Open the bottom cover.
Use a small flat-head screwdriver to remove the 24V power cord and hotbed wire from the marlin board (green marks). Pay attention to the order of the wires.
Unplug the Y-axis motor wire, Z-axis motor wire, thermistor wire, and fan wire (blue marks).
Remove the Marlin Board:
Use the H2.0 hex wrench to remove the marlin board fixing bolts.
Use the H1.5 hex wrench to remove the 4 TYPE-C fixing bolts.
Remove the marlin board.
Transfer Components to New Marlin Board:
Use the H2.0 hex wrench to remove the heat dissipation block fixing bolts from the marlin board (green marks).
Use a small Phillips screwdriver to remove the TYPE-C wire seat on the marlin board (red marks).
Install the removed heat dissipation block and TYPE-C wire seat on the new marlin board.
Install the New Marlin Board:
Use the H2.0 hex wrench to secure the new marlin board back to the machine base.
Use the H1.5 hex wrench to secure the TYPE-C base.
Reconnect Wires:
Plug in the Y-axis motor wire, Z-axis motor wire, thermistor wire, and fan wire.
Use a small screwdriver to lock the 24V power cord and hot bed wire (note the positive and negative positions).
Reattach the Bottom Cover:
Use the H2.0 hex wrench to fix the bottom cover bolts.
Use the H2.5 hex wrench to fix the foot pad bolts.
Plug in the Z-axis motor wire and TYPE-C wire (ensure the Z-axis motor wire and TYPE-C wire correspond to "R/L").
Secure the TYPE-C Wire:
Lock the TYPE-C wire retaining bolts with an H2.0 hex wrench.
Install the Bottom Cover Panel:
Install the bottom cover panel back into place.
If you have any further questions, please contact us for assistance.
