WANHAO CGR Mini Mono User manual

USER MANUAL
Like the printing speed of lightning
you can
WANHAO C.G.R Mini
Monochrome

CONTENTS
Warranty Details 3
Important 2
Technical Specications 4
A Safety Instructions 7
B Congratulations 8
C Electrical Power 9
D Useful Tips 10
E Getting Started 11
Product Overview 5
Software Installation And Conguration
Repair Recommendations
Disposal Instructions
Contents of Tool Kit
Recommended Tools
Computer Minimum Requirements
Working Principles of DLP 3D Printers
USB Memory Stick Printing
WiFi Printing
Printer Preparation 15
Filling Resin Vat
System Compatibility
Loading a Model
Actions in Scene View
Cloning your mode
Actions in Tool Bar
Scaling objects
Rotating Objects
View Options
Working with Model Support tools
Slice view
Save les
Save a Scene
Motor Control
Others functions
F Cleaning The Printer and Printed Objects 19
G Chitu Software Detailed Guide 20
Repair and Refurbished Goods or Parts Notice 27
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IMPORTANT
How to get the most out of your 3D printer
Read this manual carefully
You will be able to set up with ease
Visit our website for tutorial videos and guides
www.wanhao3dprinter.com
Email us! We’re always happy to hear from you
Technical support: [email protected]
Product feedback and partnerships: [email protected]
Purchase orders: [email protected]
Warranty Note
Join Wanhao Google forum for online support
https://groups.google.com/forum/#!forum/wanhao-printer-3d
Google Forum
2
If the product is not performing up to your expectations or you experience any
issues, please contact us before returning the item.
We are experienced in resolving problems through phone and email, or you can
reach us through your local distributor.
Email: [e-mail]
Website: www.wanhao3dprinter.com
Phone: [phone] (Hours: Mon to Sat from 8:30 AM to 5:00 PM China
Time)

3D Printer
Warranty Details
The product is guaranteed to be free from defects in workmanship and motherboard for a period
of 12 months from the date of purchase. The LCD display is a consumable part with minimum
working hours of 1200 hours. You may need to purchase and replace the LCD display after 1200
hours of use. Printing with materials other than WANHAO resin which are different from those
recommended our the website www.wanhao3dprinter.com, may result in damage of the printer or
inferior printing quality. Defects that occur within this warranty period, under normal use and care,
will be repaired, replaced, or refunded at WANHAO’s discretion. The benets conferred by this
warranty are in addition to all rights and remedies in respect of the product that the consumer has
under the laws of the People’s Republic of China. In case you purchase from WANHAO distributor,
your warranty shall be covered by the distributor’s warranty and honored by WANHAO distributor
as well. Our goods come with guarantees that cannot be excluded under the Chinese Consumer
Law. You are entitled to a replacement or refund for a major failure and for compensation for any
other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of acceptable quality and the failure does not amount to a major
failure.
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TECHNICAL SPECIFICATIONS
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CGR Mini Mono
Technical Specications Table
Machine Type DLP (Digital Light Processing) 3D Printer
Extruder System 405-410nm Wavelength UV Lamp
Enclosure Type Tilt Hood with Transparent Cover UV Safe
Max printable area 130.56(L)*82.62(W)*200(H) mm
Software Chitu
UV Type 405nm UV light
Material supported 405nm Resin
Max printing speed Max 50mm/hour
output format .ctb
Projection Size 6.08 Inch Monochrome LCD
Accuracy X:140/1620=0.051 mm
Y:78/2560=0.051 mm
Z:0.01mm
LCD display Front
Net Weight(kg) 11.96kg
Gross Weight(kg) 13.96kg
Packing size(cm) 345*370*520mm
Layer Thickness 35-100 micron
Certifcation FCC, CE, CB
Plateform Holder 4 bolt adjusting system
Rail locking system Steel bolt locking frame
Plateform Aluminum building plate
Price Range Varied for different country
Power supply unit Inside 110 AND 250V(Manual switch), 50/60Hz,
4.0A (input), and takes standard IEC cable
Typical application • Prototyping, Modeling, Jewelry, Dentistry,
Gaming and Art Applications.
• Great for Professional use or DIY hobbyists.
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PRODUCT OVERVIEW
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1
2
3
4
5
6
1. Gray Anti Wobble Cover
2. Aluminum Super Flat Build Plate
3. Z Axis Rail
4. Super Flat, Re-usable Vat
5. Touch Screen
6. USB Slot
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6
10
7
8
9
PRODUCT OVERVIEW
7. Power Switch
8. Plug Socket
9. Cooling Fan
10. Portable grip
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SAFETY INSTRUCTIONS
Before you get started, please read these safety instructions.
CAUTION : WANHAO 3D Printers include moving parts that can cause injury. Never reach inside
the WANHAO 3D Printer while it is in operation, and allow time for the printer to cool down after
operation.
MOVING PARTS
Do not leave the WANHAO 3D Printer unattended during operation.
Always wear gloves while handling resin or printed objects.
Always be careful when using the scraper. Never direct the scraper towards your ngers.
In case of emergency turn off the 3D printer by unplugging the power outlet.
• The printer must not be exposed to water or rain, or the printer will be damaged.
• The printer is designed to be used in ambient temperatures, ranging from 15°C to 30°C.
• The printer is designed to be used in humidity levels ranging from 20% to 50%.
• Operating the printer outside the recommended temperatures and humidity levels
may result in low quality print models.
• Eye protection during cleaning or sanding of the printed models is recommended
to protect your eyes from small airborne particles.
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A
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You have just purchased a new and innovative Direct UV-Light Printing (DLP) technology
based 3D printer. The direct UV method of printing uses LCD display panel as a matrix of
pixels that hardens the liquid in the resin vat with the light from the UV light source.
UV-LED's at the bottom is used as background lighting.
This revolutionary system is a new way of printing that uses normal UV light as the energy
source to provide initiation of free radicals polymerization that is necessary to change the
liquid imagepac resin into your solid hardened object.
Working Principles of DLP 3D Printers
There are two amazing advantages of DLP technology:
1. High resolution can be achieved through affordable and accessible LCD screens.
These screens are the same as the widely available screens of mobile phones and
tablets, so phenomenal value for money is passed directly on to you.
2. Energy used by CGR printer is an order of magnitude lower than comparable
systems. This is not only good news for your energy bills and the environment,
but also performance advantage due to avoiding unnecessary creation of excess
energy that leads to over-curing. The problem of over-curing is common among
Digital Light Projector (DLP) and laser systems.
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B
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Bulld Plate
Resin Vat
Light beam
UV LED
Resin
LCD Panel/
Display
CONGRATULATIONS

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This 3D printer is connected to an electrical network with an input of 110 or 240 VAC,
50/60Hz, and has an operating voltage of 24V.
- Insert the power cable cord into the socket at the back of the printer.
- Do not allow anything to rest on the power cord.
- Do not place the printer and cable where people will walk on or trip over the cord.
- If an extension cord is used with the printer, make sure the combined ampere
of all equipment plugged into the extension cord does not exceed the extension’s limit.
- Do not overload a power outlet, strip, or receptacle by plugging in too many devices.
- Remove the power cable cord when printer will not be used for long periods of time.
- Before unplugging the power cord, remember to turn off the printer.
- Use the printer only with the cord supplied in the original packaged set. For power
cord replacements, ensure the following requirements are met: detachable type,
UL listed/ CSA certied, VDE approved or its equivalent, 4.5 meters (15 meet)
maximum length.
- In case of malfunction, unplug and disconnect the printer immediately from
the network.
- Do not attempt to x the product without seeking qualied technical service
personnel, or you may risk being exposed to dangerous voltage points after
removing covers.
- For technical service please contact your location distributor, or contact
WANHAO at [email protected].
Disposal Instructions
Do not dispose of this printer as regular waste. Please minimize pollution to the environment
and recycle or return to WANHAO for recycling.
C
Repair Recommendations
Unplug the printer form the wall outlet and contact a qualied service personnel when:
- The power cord is damaged, cut, or frayed.
- Liquid is spilled into the printer.
- Printer is dropped or case is damaged.
- Product exhibits distinct changes in performance that indicates malfunction.
- Product does not operate normally after following operating instructions.
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ELECTRICAL POWER

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1. Have adult supervision present when printer is operated by a minor.
2. The resin is a skin and eye irritant. Always wear gloves when coming into
contact with the liquid resin.
3. Operate the printer on a stable and level surface, preferably away from direct
ambient light.
4. Ensure there is sufcient space to open the printer doors.
Contents of Tool Kit
- 1 x CGR mini ash disk
- 1 x 2.0mm Allen key
- 1 x 2.5mm Allen key
- 1 x Funnel
- 1 x Scraper
- 2 x Bolt
- 1 x Power cord
- 2 x Sets of 2 disposable medical gloves
Recommended Tools
- Gloves to handle liquid resin
- Paper towels to clean work area
- Industrial alcohol
- Soft brush or sponge to clean the printed object
- Plastic container to rinse off the resin
Computer Minimum Requirements
- Dual core processor or above
- Windows or Linux OS
- Software is compatible with Mac OS
- 4 GB RAM memory or above
D
Note: 500ml of resin (free) will be shipped by DHL
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USEFUL TIPS

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USB PRINTING AND LAN PRINTING
There are 2 ways to print through CGR 4K 8.9” Monochrome printer. You are able to slice the le through your
computer and print the le by USB ash disk. Or you are able to slice in software Chitu and transfer the data
through LAN to your printer and print.
2. Click the button [Add new Printer], click the mouse
pulley to the others at the bottom of the option, select
Default, and click OK.
4. Load a model on the platform.
5. In this bar you can add supports automatically and
manually to your model.
1. Search www.chitubox.com/download.html to download the
latest version of the slicing software. You need to download
according to the system conguration on your computer.
A.PRINTING THROUGH USB FLASH DISK.
3. Import the new prole, cGR-4k_prole.cfg.
Note：After importing the le, the software will be
automatically congured. Please do not modify any
information if it is not necessary.
6.1 After you ensure the setting click on Slice.
6. SLICING PROCESS

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6.2 In the Slicing process you can see the printing time
and other information about the model. You can also slide
the slider to up and down and see the layers of the model
you are going to print.
Slicer starts to write and save the le.
7.1 Copy the sliced .ctb le into USB disk.
Insert the disk into the printer.
Click on Export and save the le as a .ctb le.
7. Insert the USB and PRINT
7.2 Click USB PRINT. Select the le you
wish to print. It would take few seconds to
unzip the le.
Note: Unzip the le would take some memory
inside the disk. Please always leave some
space for unzip.

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PRINTER PREPARATION
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5.1 Plug the power cord and turn on the printer. Printer shall start to boot and access to
home screen.
Note: The printer has been calibrated before scheduling. If you are not satised with the
current calibration. Please refer to "Recalibration" in the user's manual.
5.2 Click the Tool -- Detection -- on the touching screen. The test icon
shall project on the printing display.
5.3 Loosen the knob on the building board. Insert building slab into bracket slot. Do not
screw down the knob completely, make sure it can be placed on top.

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5.4 Place a piece of paper on the LCD screen. Then go back to the z-axis and move
z-home by clicking on it.
5.5 Please drag the A4 paper back and forth until you can feel the obvious resistance
between the building plate and screen which means the building plate is ne leveled.
In case still too much distance, you may need to click and to lower or raise the
building plate for obvious friction from the dragging paper.
Important Notice: Please click the lower button once a time to avoid continuous
clicking cause the breakage of screen.
After the adjustment, we need to lock all the screws in the building.

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5.9 To pour the resin into the tank, you need to lift the printing platform.
Press the icon for several times and give a good distance between the
cylinder and the plate. Shake the bottle before opening it, then pour the
resin into the jar as shown in the picture above.
5.8 Pouring resin
5.6 You need to lift the printing platform.Install the VAT onto the printer. Make
sure the 2 locking screw well secure the VAT from moving up and down.
5.7 You need to lift the printing platform.Install the VAT onto the printer. Make
sure the 2 locking screw well secure the VAT from moving up and down.

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POST PROCESSING
6.0 Place the platform to a washing-up bowl. Remove the
objects by sliding the scraper in at their base.Wash off any
liquid polymer in alcohol container. You can gently clean it
with a soft brush or sponge,take care not to damage it, it will
not achieve full hardness until after post exposing in light. An
ultrasonic cleaner will clean your objects without the possibility
of damaging them.
Check your object is thoroughly clean as resin cannot be easily
removed afterwards and then leave it under
water in sunlight for about 10 minutes. The
longer you leave it under water the darker
the colour will get, some colour change is
inevitable. When it is completely post-exposed
it will be strong and have a dry surface. Empty
the contents of the vat back into the bottle by
pouring through a sieve.With the vat on a  at
surface wipe the inside thoroughly with
absorbent paper.Replace the lm when damaged.

1. Ensure the base of your object is clear of the vat by moving the print
platform up sufciently. Remove the hood of the print platform and tilt
the platform backwards to allow excess resin to drip back into the resin vat.
2. Lay down absorbent paper towel where the printed object will be placed. Close
the hood of the printer immediately after removing the object to protect the
remaining resin from light.
3. Remove excess polymer with paper rst, then place the print platform in
a wash container. Scrape off the printed object at the base by using the
scraper included in the package. Wash off liquid polymer with alcohol.
4. The object will need post-print exposure to light to achieve full hardness.
Before that, you can gently clean the printed object with a soft brush or sponge.
Or if you have an ultrasonic cleaner, the printed object can be cleaned without
damaging it.
5. Check the printed object is thoroughly cleaned, then place it in an area with
bright sunlight for 10 to 20 minutes inside a container. Alternatively, you can
use a UV lamp to achieve the same post-print UV exposure that hardens the
object. During this process the object will darken in colour with light
exposure and become dry.
6. While waiting for the object to become completely dry, clean the build platform
with industrial alcohol and chip off any cured resin. Dry off the build platform
before inserting it back into the printer.
7. It is recommended to empty the resin vat for cleaning every time you print.
This is to avoid having solidied pieces at the bottom of the resin vat that would
prevent proper calibration and homing. To remove the resin vat, loosen the Z bracket
to take out the resin vat and pour the resin liquid back into the bottle with a strainer.
Place the vat on a at surface and wipe the bottom of the vat with absorbent paper
towel. Make sure the vat is clean and undamaged before placing it back in the printer.
If the vat is not at and tight like a drum’s surface, remove the lm and replace it with
a new lm.
8. If resin leaks on to the screen, allow the resin to harden then chip off the hardened
resin with a blunt, non-serrated knife to avoid damaging the screen.
F
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CLEANING THE PRINTER
AND PRINTED OBJECTS
Follow these steps to minimize spilling resin so that your machine stays clean.
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CHITU SOFTWARE
DETAILED GUIDE
System Compatibility
Chitu is compatible with Windows and Mac operating systems.
Key Buttons on the Main Screen
Open File:Click to open new les, including .STL, .OBJ, .Zip les.
Save File: Click to save the current object as .ctb le. Using a .STL le will
allow you to prepare a scene template with supports and positioning that
can be printed repeatedly in the future.
Left, Front, Top and Original: Click these buttons to view the 3D object
within the boundary box. This function can be used to add supports
to the object.
Slice: Click to access the Slice menu screen. You can access the individual
slices that were generated as well as the .ctb le.
Settings: Click to congure slicing and printing proles.
G
Supports: Click to add supports automatically and manually to your model.
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1. Loading a Model
2. Actions in Scene View
Click on “Open File” button
and select a le in the following
formats: .STL, .OBJ, .Zip.
Selecting your model
Select by clicking on the model
or clicking on the File List on the
right panel.
Removing your model
Remove all models by clicking
“Select All” checkbox, then click
on the Trash Bin icon on the right.
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