WANHAO Duplicator i3 Bedienungsanleitung
WANHAO DUPLICATOR i3 TEMPERATURE FLUCTUATION FIX
WARNING
THIS PROCEDURE MAY CAUSE PERMANENT DAMAGE TO YOUR PRINTER IF PERFORMED INCORRECTLY AND MAY ALSO
VOID YOUR WARRANTY. CONTACT YOUR RESELLER FOR DETAILS.
PROCEED AT YOUR OWN RISK AND WITH YOUR SKILL SETS IN MIND.
PURPOSE:
Some of the Latest Wanhao Duplicator i3 Printers Suffer from a Large Degree of Temperature Fluctuation,
Especially Noticeable at Higher Temperatures.
This Method of Fixing this Issue is Recommended by Wanhao but is NOT the Only Way.
This Issues Seems to be Limited to Printers with the Following Melzi Board Iteration and May Not be Limited to
V1, V2, etc.
IF YOU HAVE A DIFFERENT MELZI, YOUR TEMPERATURE FLUCTUATIONS MAY BE CAUSED BY A DIFFERENT
ISSUE.
For an In Depth Discussion of the Issue and Its Possible Cause, Refer to the Google Groups Support Page.
REQUIRED HARDWARE:
Soldering Iron (A Good Quality 40W Pencil Recommended)
Rosin Core Solder of Your Choice
Approximately 10cm of Wire (At Least 18AWG)
Set of Metric Allen Wrenches (2, 2.5 and 3mm)
You May Refer to the Extra Resources at the End of this Guide for Further Help
1. Position Your Printer in a Way that
Allows Easy Access to the Control
Box without Damage or Strain to
the Rest of the Machine. Ensure
that the Printer is Switched Off and
the Power Cable is Removed to
Avoid Injury to you or More
Importantly, the Printer.
2. Remove the 4 Screws Holding the
Back-Plate in Place. Use Caution as
this Plate is Attached to the Floor-
Plate and also to Several Wires
Which Are Semi-Permanently
Attached. Place these screws in a
safe place.
3. Remove the 7 Screws Holding the
Floor-Plate in Place. Do Not
Attempt to Remove the Plate as it
is Still Attached to the PSU. Place
these screws in a safe place.
4. Remove the 4 Screws Holding the
PSU in Place Against the Floor-
Plate. You May Now Remove the
Floor-Plate. NOTICE: These screws
are not the same size as the other.
Keep them in a safe place.
5. You May Now Partially Slide the
PSU Out of the Control Box.
Remember that it is Still Connected
to the Back-Plate and the Melzi
Board. NOTICE: You May Have to
Slightly Force the Walls of the
Control Box Open to Remove the
PSU. Be Gentle.
6. Set the PSU Aside, Remembering
that It Is Attached to the Back-Plate
and the Board.
7. MAKE SURE TO GROUND
YOURSELF.
8. Gently Disconnect the Cable
Connecting the Board to the LCD
Screen. It is Safer and Easier to do
this at the Connection Behind the
LCD Rather than at the Board. (Red
Square)
9. Remove the 4 Matching Screws and
Spacers that Hold the Board
Against the Control Box Body at
Each Corner (Red Circle). Do Not
Lose the Spacers or the Screws as
these are Different from the Rest.
Keep them in a safe place.
10. You May Now Gently Remove the
Board from the Case. Remember
that the USB Port and SD Card Slot
are Against the Control Box Wall
and be Careful Not to Damage
Them (Red Rectangle).
11. You May Now Place the Control
Box Body Aside as it is No Longer
Attached to Any Electronics Except
the LCD.
12. At this Stage You May Choose to
Remove All Connections from the
Printer and the PSU to the Board. I
Did Not Do this as It May
Inadvertently Damage the Board,
Components or Connections/Wires
and I Do Not Recommend This to
the Average User. However, if you
are comfortable, removing them
does make the next step easier.
13. Set Up Your Work Area with Proper
Ventilation and Lighting. See Image
for Details.
14. Using Proper Soldering Technique,
Solder 1 End of the Wire to the
HOTEND Bypass Connection on the
Front of the Board. If Facing the SD
Card Slot, this should be the 2nd
Green Connection from the Right
and the Right Solder Joint on the
Bypass Terminal. NOTE: Be Very
Careful and Use Proper Equipment.
This area is very close to other
components and you may damage
your board or its components by
not taking the proper precautions.
15. Find the Connection on the Board
Labeled POWER and Note It’s
Position on the Front.
16. Turn the Board Around so that you
Can See the Solder Joints on the
Back and Identify the Joint that
Corresponds to the GND Label of
the POWER Connection on the
Front.
17. Using Proper Soldering Technique,
Solder the Other End of the Wire
Here. Follow the Same Precautions
as Step 14.
18. Here You Can See the Connection
from Both Sides for Reference.
TESTING: ONLY DO THIS IF YOU ARE COMFORTABLE WITH ELECTRONICS.
Before Reassembling the Control Box, You May Choose to Connect the Power Cord and the LCD Screen and Using the
Knob on the Control Box Test that the Printer is Fully Functional. You May Also Pre-Heat to ABS or PLA to Test Whether
Your Connections are Solid.
BEFORE REASSEMBLY, ENSURE THAT ALL CONNECTIONS ARE SEATED PROPERLY.
YOU MAY ALSO CHOOSE TO REMOVE THE RESET JUMPER FROM THE BOARD IF YOU HAVE NOTICED ISSUES WITH
YOUR USB CONNECTION (See Image in Step 19)
19. Here You Can See the Mezli Board
as It Appears when Returned to the
Control Box. Notice the Wire and
its Placement Relative to the
Control Box.
20. REASSEMBLE THE BOARD BY FOLLOWING STEPS 2-12 IN REVERSE ORDER. ENSURE THAT ALL CABLES ARE
PROPERLY SEATED AND CONNECTED.
EXTRA RESOURCES
https://groups.google.com/forum/#!forum/wanhao-printer-3d
https://www.youtube.com/watch?v=Ak9kyObHr0Y
MADE BY S.A.F.A/3D-DOC
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