WANHAO CGR Series User manual

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USER MANUAL
4K HIGH denition 3D printer
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WANHAO C.G.R
4K 8.9"

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 DUP 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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3

TECHNICAL SPECIFICATIONS
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CGRSeries Model Mark I
Technical Specications Table
Machine Type DLP (Digital Light Processing) 3D Printer
Extruder System 405 nm UV lamp, DLP
Enclosure Type Tilt Hood with UV safe glass
Max printable area 192*120*180mm
Software Chitu
UV Type 405nm UV light
Material supported 405nm Resin
Max printing speed Up to 60mm/hour
Case Material Steel Case Construction
Projection Size 8.9 inch Monochrome LCD
Accuracy X 0.05mm
Y 0.05mm
Z 0.035~0.1mm
LCD display Front
Net Weight(kg) 22kg
Gross Weight(kg) 28kg
Packing size(cm) 470*460*545mm
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. Red 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. LAN network interface
10. Cooling Fan
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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 (DUP) 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-
LEDs 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 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 zip le into USB disk.
Insert the disk into the printer.
Click on Export and save the le as a Zip 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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1. Find the network wire interface end on the back of
the printer and insert the network wire.
B. UPLOAD AND PRINT VIA LAN
2. Open the printer, click system-Network, select the
wired network button, and you will get the IP address.
3. Open Chitu, select the model already congured, import
the le and slice it. After slicing, rst select the same IP
address, so that the computer side and machine are in the
same LAN. Finally, click Network DATA.
4. Enter this step, check the name of the connected printer,
and click enter the transfer phase.

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PRINTER PREPARATION
5.1 Plug in the power cord and turn on the printer. Once the printer
is booted up, the Home Screen will be accessible.
5.2 Slide the resin vat on to the LCD screen and align the spots on
the vat with the two knobs on the left and right side.
5.3 Tighten the knobs on both sides. Ensure there is sufcient pressure
to prevent movement but not excessive pressure that may cause damage
to the vat.
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6.1 Mount the printing platform on the holding plate and tighten the two
knobs on the top. Make sure it is tight enough so that the platform will not
move or shake.
6.2 5.Loosen the four knobs on the left and right side of the printing
platform so the Z Height can be adjusted.
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6.3 On the printer’s Home Screen, press “Settings” then “Z Height”
then “Reset”. This will start lowering and positioning the build platform.
6.4 After the platform is in place to reach into the resin vat,
tighten the four knobs on the left and right side of the backside of
the print plate with light pressure.
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7.1 To pour in resin into the vat, you need to lift the printing platform by
pressing the Up Arrow a few times on the printer’s Home Screen to get
good distance between the resin vat and printing plate.
7.2 Shake the resin bottle before opening it, then pour the resin
inside the vat.
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Filling Resin Vat
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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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