WANHAO Duplicator i3 User manual

CURA WANHAO EDITION
USER MANUEL

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1.1 Cura
Overview
We recommend that new users start with Cura as it includes a slicing engine. Host software we
recommend to use Repitator. There is separate introduction of Repitator.
Slicers
These programs take the 3-Dimensional model (typically TL/OBJ/etc) and determine the 3D
printer tool path based on the options selected. The slicing engine uses the nozzle diameter,
printing and movement speeds, layer height and other variables to determine the coordinates
where it needs to move and the ratesat which it will do so. This information is exported out of the
program as a gcode file. The gcode file is a plain-text file with a series of text-based codes and a
list of the complete X,Y and Z axis coordinates used for printing the 3D model. We recommend
that new users start with Cura as it includes the printer host as well.
Setup Cura
Cura is available for download on our website
athttp://www.wanhao3dprinter.com/Down/ howArticle.asp?ArticleID=56When installing, it
is recommended to uninstall any previous versions of Cura you may have been using. When first
opening Cura, you will be prompted to go through the First run wizard. This will consist of
selecting your printer. It is important to select the correct printer, as Cura uses custom profiles
and machines settings based upon which printer you are running.
1.2 Installing Cura
Download Cura From our website and run the exe file The very First screen you will get is to
choose the file location choose the location and press next as shown below:

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After pressing next the next screen will ask you to choose the component and the formats you
would like to open in Cura. Make the selection as below and press next.
Now press next to complete the installation.
Now Press Finish button to finish the process:

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Now you will see the Front screen of Cura with all the options as shown below:
Now to print with our machine go to Machine option in the header and select add new machine
option.

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Now select the radio button with the option as follows: Other (Ex: RepRap, MakerBot, Witbox)
and press next button.
Then Choose Pursa Mendel i3 and click next.
Now press Finish and you will be redirected to the below screen:

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Now load the object with the Load File button as shown below and make the changes in the
parameters as shown in the image.
1.2 Quick Print Settings
After setting up Cura for the first time, you will be shown the main interface
screen. (Fig. 1.1)
Figure 1.1: Quick Print ettings
Selecting a Quick Print Profile
The print quality settings can be found in the top left-hand corner of the window. For most
filaments, there will be High Quality, Normal Quality, or Fast Quality options. ome of the more
exotic filaments may only have a Normal Quality profile.
High Quality
Designed to give greater detail and finer objects. This will have a smaller layer height, which will
make each layer thinner, so that curves seem more natural and walls seem less noticeable. This
setting will also require more layers to be laid down, increasing overall print time.
Medium Quality
Designed to give a medium resolution, by increasing the layer height and print speeds. This will
make the organic curves slightly more step-like than the fine setting, but will reduce printing
time.
Fast Quality
Designed for the fast prints, where overall model finish is not of concern. Most commonly used
for quick iteration of designs found in rapid prototyping.
Material Selection

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Choose your desired filament. The Wanhao duplicator i3 ships with a 10 meter
sample of PLA, that should be used in your first print.
Printing Support Material
The Wanhao 3D printer is able to print models that have angles and overhangs, even without
support material depending on the overhang distance and angle. Turn this option on if your
model could benefit from support material.
Brim
Brim is used to increase surface area of the part your printing, there by ensuring proper part
adhesion. This will print a single layer high edge around the outside of the part, helping first layer
adhesion and minimizing warping. around the outside of the part, helping first layer adhesion and
minimizing warping.
oad Model File
elect the model you would like to print. Either use the Load Model button or select File > Load
Model. Once the file has been loaded, you will see a 3D rendering of your object on the build
platform. elect the model to see the various options.
Model Orientation
Move your model to change where it is printed on the build plate. Do this by left clicking on the
model and dragging it to the desired location. The black outlined corner represents the lower left
hand corner of the build plate on your printer. You can also Right Click and hold in the build
screen, to view your model from different angles.
Figure 1.2: Options after selecting model
Rotate
The Rotate button will give you the ability to orient your model in along all three axes. Once you
click the rotate button, three circles will surround your model. The red circle will allow you to
rotate around the Z axis. The Yellow circle will rotate around the Y axis. The Green circle will
rotate around the X axis.

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Figure 1.3: Rotating your Model
ay Flat
The Lay Flat button will ensure that the flat portion of your print is securely attached to the bed.
It is highly recommended to use this optional after rotating your model in the Z direction, as it
will help prevent adhesion issues during the print.
Reset
The Reset button will return your model to the original orientation as defined by the CAD
program used to create the model.
Scale
The cale button displays the model dimensions, along with the ability to scale along the X Y or Z
axes. Anything below the number 1.0 will reduce the objects size, while anything above the
number 1.0 will increase the objects size. As a default, it will be set to uniform scaling. This will
cause the X Y and Z axes to be scaled by the same amount when you make a change to any of
them. To disable this, select the lock in the lower section of the scaling window.

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Figure 1.4: caling your Model
1.3 View Options
This mode allows you to view your model in a variety of different ways.
This can be helpful for spotting issues before the print even starts.
Normal
This is the standard view and shows the solid outer surfaces of the model.
(Fig. 1.5):
Figure 1.5: View in Normal Mode
Overhang
Overhang mode shows where your model may need support material. InFig. 1.6, page 16 the red
highlighted areas show overhangs and more severe angles and areas where support material is
recommended.

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Figure 1.6: View in Overhang
Ghost
Ghost view mode makes the model translucent to allow you to see what is behind it.
Figure 1.7: View in Ghost
Xray
Xray is very similar to Ghost mode. It will allow you to see into objects, ensuring that inner details
are correct.
Figure 1.8: View in Xray
ayers
To view the tool path of your print head and to ensure no skipped layers or gaps use this option.
Use the slide bar on the right hand side of the window to move up and down through the tool
path layers.

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Figure 1.9: View in Layers
Figure 1.10: Viewing pecific Layers
1.4 Starting Your First Print
Once you have your model, profile, and filament loaded, it is time for your first print!
You have 2 ways to process the printing.
1.4.1 Print through Micro-SD card.
Press ave bottom, so you can save the Gcode to target file, such as desktop. Copy this Gcode
into micro- D card, then insert into printer. Please note that you need to restart the printer to
enable the printer to refresh the file memory. Then you can print from D card.
Figure 1.11: Viewing ave button
1.4.2 To print from computer
Turn on the printer and connect the printer and computer through U B cable. The computer will

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install the drive automatically. On the right bottom side of screen, the driver installation process
shall display.
Figure 1.12: printer link driver installation view
Navigate CURA to Machine—Machine settings
Figure 1.13: Machine setting button view
Define the head size as below.
Choose the connection port, such as Com9.
Choose Baudrate: 115200
After setting, click OK.
Figure 1.14: Machine setting

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After finishing setting, the CURA “save” button will change to “Print” button. Left click this button
to start printing directly. Or if you still want to print from Micro D card. Right click the print
button and choose “save Gcode”. Then repeat the option 1 print from micro D card.
Figure 1.15: Printing button Figure 1.16: ave Gcode
Important notice: There are many factor may interfere the direct U B link printing can cause
stop in the middle. The Micro D card printing is highly recommended.
Re oving Your First Print
After your first print has finished, you need to wait for the part to cool down. Your parts will be
easier to remove if you allow your heated bed to cool down to optimal temperature. This will
allow the plastic to contract, making it easier to remove. Your print bed will move forward once it
is ready to be removed. Once your heated bed has cooled, use the blue handled knife that was
included with your printer to remove the item. Carefully insert the blade of the knife between
your print and heated bed. Once underneath the part rotate the blade- lifting with the sharp edge
into the part, to gently pop the piece off your plate.
1.5 Full Settings
Full settings should not be used until enough experience with 3D printing has been gained to feel
comfortable with all aspects of the printer and its operation. The simple settings will provide
good results for most models. The first time Cura is launched it will default to the Quick Print
interface. In order to have more control of your slicing and Gcode generation, switch to Full
ettings. elect Expert > witch to full settings. The following tabs will now be available: Basic,
Advanced, Plugins, and tart/End-Gcode. You will also have access to the Expert ettings.

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Figure 1.17: View in Full ettings
oading a Profile
When you first switch to Full ettings, Cura will revert to very generic settings. We recommend
using our tested profiles that are available here: www.wanhao3dprinter.com--download. You will
want to choose the profile that matches your filament and quality needs. Once down loaded, you
can load the file into Cura by selecting File > Open Profile. Choose your desired profile. This will
automatically update all of your settings for use with your printer.
1.6 Basic Tab Options
ayer Height
The thickness of each printed layer is known as the Layer Height. The smaller the layer height, the
smoother curves will appear. Larger layer heights are better for bridging and overhangs. maller
layer heights will also increase print time, as it will take more layers to complete the object.
Figure 1.18: Differences in Layer Height
Shell Thickness

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This defines the number of vertical walls that comprise the outside of your model. We
recommend keeping this set to multiples of your nozzle width. Your Mini 3D printer is equipped
with a 0.5 mm nozzle.
Enable Retraction
Retraction tells your printer to pull filament out of the hot end upon travel moves. Travel moves
are when your print head moves from one area of the print, to another without laying down
filament. We recommend keeping this on for all filament types, and adjusting the retraction
length and speed for the specific filament.
Bottom/Top Thickness (mm)
Also known as urface Layers- this will determine how thick the top and bottom layers are. A
larger number here will create a thicker top and bottom which can be helpful for strength,
bridging, and quality purposes. We recommend keeping this number as a multiple of your layer
height.
Fill Density
This number is expressed as a percentage. 0% will give a completely hollow print, while 100% will
give you a completely solid object. We have found that 20% to 40% fill density is functional for
most prints.
Print Speed (mm/s)
Your overall printing speed can be adjusted here. If no other speeds are determined in the later
sections your printer will automatically default to this speed. This speed will be different,
depending on what type of filament you are using.
Printing Temperature
When using different filament materials you’ll need to update the desired hot end and heated
bed temperature. Any temperatures specified here will be used to automatically set both the hot
end and heated bed. Your print will not begin until these temperatures are met. The Mini 3D
printer needs to have the temperature specified in order to run through the automatic
bed-leveling routine.
Support Type
ome models will require support material in order to print properly. This will usually occur when
an object has an angle in relation to the build plate between 0 to 45 degrees. It is highly
recommended to orient your object so that it minimizes or eliminates the need for support.
Touching Build plate
This causes the support material to build up between the heated bed and the object. The red
example is Touching Build plate.
Everywhere
This prints support material between the heated bed and object as well as between the object
and itself. The green example is upport Everywhere.

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Figure 1.19: upport Types
Platform Adhesion Type
Some models have a small surface area contacting the plate. This can create adhesion issues
causing your part to pop off at some point during the print. To fix this, use either Brim or Raft.
Raft is better used when a model has small heated bed contact points and overhangs.
Brim
Brim will create a single layer of filament, contacting and surrounding your model. This will
increase the surface area of the part contacting the build platform thereby preventing it from
popping off the heated bed. Brim will also help in situations where you are seeing corner lift.
Brim settings can be adjusted in the Expert ettings options.
Raft
Raft will generate a layer of material underneath your object. Raft was more often used before
the addition of heated plates to increase surface area. Raft settings can be adjusted in the Expert
Settings options.
Filament Diameter
The filament diameter setting is one of the more important settings. Make sure that you update
this value periodically with your average filament diameter. While your filament may be referred
to as 3mm, it is more likely going to be near 2.9mm +/- 0.1mm. You will want this to be an
accurate average, as it will allow your printer to correctly calculate how much filament it is pulling
into the hot end.
Filament Flow %
This controls how much filament your printer is extruding in relation to speed. This setting is
mainly used to adjust for filament density variations. Leave this value at 100% as changing it can
lead to surface quality issues
1.7 Advanced Tab Options

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Nozzle Size (mm)
This defines your nozzle size. The slicing engine uses this value combined with your other settings
to determine how quickly to feed filament into your hot end. The Mini ships with a 0.4mm
nozzle.
Retraction peed (mm/s)
Retraction peed determines the speed at which your filament is reversed out of the hot end for
travel moves and when changing direction during printing. We recommend keeping this set to
25mm/s.
Retraction Distance
Retraction Distance determines how much filament is pulled out of your hot end on travel moves
and when changing direction. You will want to adjust this depending on temperature settings and
filament type. Higher thermal retaining filaments such as PLA behave better with a longer
retraction distance. We have found anywhere from 1mm to 3mm is a good starting range.
Initial ayer Thickness
This will control how thick your first printed layer height is printed onto the heated bed. Having a
larger initial layer height will help prevent your part from popping off the plate. Your Wanhao
Duplicator i3 auto leveling system could be affected if you change this from the standard profiles.
Adjust at your own risk.
Initial ayer ine Width
This will control how wide your first extruded filament path is for the initial layer. A wider line
width will help with bed adhesion. We have found 125%to be a good starting place. For models
with moving printed in place parts, a smaller initial layer line width is recommended.
Dual Extrusion Overlap
This will determine how far your Dual Extruders will overlap when laying down material. This will
help adhesion between the two different colors or types of filament. This setting is only used
when the printer is equipped with two hot ends and extruders.
Travel Speed
This setting will determine how fast your print head moves while not extruding filament. A
normal travel speed of 60-80mm/s is recommended.
Bottom ayer Speed
This will control your initial layer speed. In general, a slower initial layer speed will help with first
layer adhesion.
Infill Speed
This is how fast your print head speed will be while laying down the interior portion of your
model. Faster speeds are usually tolerable here, as none of the infill will be visible from the

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outside of your object. If you go too fast compared to your inner and outer shells, you can have
adhesion issues or globs of filament left behind from the print head.
Outer Shell Speed
This will be the outermost surface of the model. This is the most important setting, as it controls
the speed of your print head on the visible layers. As a general rule of thumb, the slower you go
the better looking print you will get.
Inner Shell Speed
This affects vertical walls that are in between the outer shell and infill. This will not be visible but
will help support the outer shell and the infill. Were commend keeping this speed setting
between your infill and your outer shell speed.
Minimal ayer Time
This will determine a minimum amount of time your printer will spend laying down each layer. If
your layer print time falls below this your printer will automatically slow down to reach this time
before moving onto the next layer. Tweaking this can help get cleaner, crisper prints.
Enable Cooling Fan
Enables operation of your extruder’s active cooling fan. The fan settings can be adjusted in the
Expert ettings options.
1.10 Plugins
Plugins are custom settings which will alter your print at specific points. The two that come
pre-loaded with Cura are Tweak at Z, and Pause at Height. More plugins and information can be
found here: http://wiki.ultimaker.com/Category:CuraPlugin To activate one of these highlight the
desired plugin and click the drop-down arrow directly below the Plugins box.
Figure 1.20: View of Plugins
Tweak at Z

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Make basic changes at specified Z heights. You can determine the Z height or layer count at which
you want to make a change. Then choose how you would like to change your settings. You can
alter temperatures, fan speeds, and print speeds. Fine tuning these for specific TL files, can
produce cleaner prints.
Pause at Z Height
Pause your print at a specified height. You can also specify where to move the print head and
how much filament to retract. This will prevent “lobs” from accumulating on your print while
paused. This setting is most commonly used when switching colors of filaments in the middle of a
print.
1.11 Start and End Gcode Settings
Custom Gcode allows for complex automatic printer movements and operations. By adding
custom Gcode into the start or end of you rfile, you can alter how it prints. A comprehensive list
of Gcode commands can be found here: http://reprap.org/wiki/G-code Were commend new
users to leave this as provided in the profiles athttp://www.wanhao3dprinter.com--download.
1.12 Expert Settings
Expert settings will give you more specific options for your retraction, skirt, active cooling, infill,
support, brim, raft, and special settings. To gain access to this section you go to Expert > Open
Full ettings or on your keyboard press Control + E.
Figure 1.21: View Expert ettings
1.13 Retraction
Retraction pulls filament out of your nozzle when it is not extruding to prevent your print head
from dripping on your object. This section is where you will control how your extruder retracts its

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filament.
Minimum Travel
This sets the minimum travel distance of your print head in order to retract. If your print head is
not moving this far during travel moves, it will not retract.
Combing
This option prevents your print head from traveling over holes in the X/Y plane when printing.
This will slightly increase print time, but will prevent strings from getting caught on the holes
during travel moves. Were commend keeping this setting on.
Minimal Extrusion Before Retracting
This will control the distance at which retraction occurs if the printing movement exceeds the
minimum extrusion amount. This will prevent are traction move, if your extruder has not put out
X mm of filament since its last retraction. Z Hop When Retracting This will raise your print head X
mm while retracting. This setting helps prevent ooze, and strings from being deposited on your
print.
1.14 Skirt
kirt creates a line around the outside of your object. Most commonly used to prime the extruder,
in order to prevent missed filament at the beginning of a print. Leave this setting on.
ine Count
This will define the number of loops the kirt creates around the outside of your object. maller
models will require more loops to properly prime the extruder.
Start Distance
This will define the distance away from your model that the skirt will be created. If using as an
envelope to prevent drafts, it is recommended to be closer to your object.
Minimal ength
This will define the minimum extruded line length for the skirt. This will over ride your line count,
producing as many lines as required to reach the minimal length.
1.15 Cool
This section will define how your extruder cooling fan will operate during the print. Your fan will
not start until it has reached 25% or higher for speed settings. If your print speeds are slowed
down due to minimal layer time, the fan will run between minimum and maximum speed based
upon how much the layer is slowed down.
Fan on at Full Height
This is your Z height where your fan will be turned on to its minimum percentage setting.
Especially helpful with high temperature retaining filaments such as PLA. This will be scaled
between 0%, and your minimum fan speed based upon layer height; with it being disabled for the