Monoprice 21824 User manual

MONOPRICE
MP Cadet LCD Resin Printer
P/N 21824
User's Manual

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 an
MTBF of 1200 hours. You may need to purchase and replace it after 1200 hours of operation.
Printing with materials other than resin types recommended on the www.monoprice.com website,
may result in damage to the printer or bad quality prints. Defects that occur within this warranty
period, under normal use and care, will be repaired, replaced,or refunded at our discretion. The
benefits conferred by this warranty are in addition to all rights and remedies in respect of the
product that the consumer has under the law.

Safety Instructions
Before you get started, please read these important safety instructions.
CAUTION: The 3D Printer includes moving parts that can cause injury. Never reach inside of the
3D Printer while it is in operation and allow time for the printer to cool down after operation.
MOVING PARTS
Do not leave the 3D Printer unattended during operation.
Always wear glovesand eye protection whenhandling resin or printing an object.
Always take care when using the scraper. Never direct the scraper towards your fingers.
• The printer must not be exposed to water or rain, or damage will occur.
•The printer is designed to be used with ambient temperature ranging from 15~30°C and
humidity ranging from 20~50%. Operating outside these limits may result in low quality
models.
• In case of emergency, turn off the 3D printer at the power outlet.
• It is recommended that you use eye protection when cleaning/sanding printed models to avoid
small particles contacting your eyes.
MOVING PARTS
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A

Contents
Warranty Details 2
A. Safety Instructions 3
C. Electrical power
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D. Useful advice
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The box contains
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Recommended items
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Minimum computer requirements
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B. Congratulations
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The principle behind your printer
Safety Information
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Disposal instructions 6
E. Installation & Assembly Instructions
F. Preparing the Duplicator 7 for Printing
G. Cleaning the Machine and Your Printed Objects
H. Detailed Creation Workshop Software Instructions
System Compatibility
Main Screen
1. Loading a Model
2. Scene View
3. Object Info
4. Move View
5. Mirroring Objects
6. Scaling Objects
7. Rotating Objects
8. View Options
9. Working with Model Support Tools
10. Saving a Scene
11. Slice View
12. Control
13. Congure
13.1 Congure Machine
13.2 Congure Slicing Prole
14. Slicing a Model
15. Connecting Software to Duplicator 7
Repair and Refurbished Goods or Parts Notice

Congratulations
You have just purchased a new type of 3D printer, using Direct UV-light Printing (DUP)
technology. This is a new method of LCD image creation allows controlled UV light to get
through the LCD screen,which hardens liquid to form a model. This revolutionary system is
a new way of printing that uses normal UV light as the energy providing source to initiate
the free radical polymerization necessary to change the liquid resin into your hardened
object.
The principle behind your printer
There are two surprising advantages of this new DUP technology:
i) We can use high-resolution, low-cost LCD screens that are widely available as monitors,
tablets, mobile phones, and televisions,providing phenomenal value for the money.
ii) The energy used by Duplicator 7 printers is again an order of magnitude lower than
used in comparable systems. This is good for your energy bills and the ecology, but there
is a huge performance advantage in that there is no unnecessary energy created. All of the
available photons strike photoinitiators and hand over their energy. In comparable
Digital Light Projector and Laser systems there is a lot of excess energy which can lead to
over-curing.
Safety Information
Read the instructions carefully. Keep this document for future reference. Follow all warnings
and instructions marked on the product.
Observe the following guidelines when connecting and disconnecting power cord to the
printer.
- Insert the power cord into the socket on the back of the printer.
- Turn off the printer before unplugging the power cord.
- The printer cooling fan is supposes to run when you turn on the printer.
- Operate on a table or at, stable surface, ensuring that the machine cannot fall
and is level.
- Do not operate outdoors.
- Do not allow resin or any liquids to get inside the chassis. Wipe up any liquid spills
immediately.
- Store the printer in its original packaging when not in use.
- Unplug the printer when it will not be used for a long period of time.
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B

Electrical Power
This 3D printer uses an AC adapter with an output of 12 VDC, and an input of 110 or
240 VAC, 50/60 Hz. Ensure that your electric outlets provide power in this range.
- Do not allow anything to rest on the power cord. Do not locate this product where
people will walk on the cord.
- If an extension cord is used with this product, ensure that the total ampere rating of the
equipment plugged into the extension cord does not exceed the extension cord's
ampere rating. Also, ensure that the total rating of all products plugged into the wall
outlet does not exceed the fuse rating.
- Do not overload a power outlet, strip, or receptacle by plugging in too many devices.
- Use the product only with the supplied power supply cord set. If you need to replace
the power cord set, make sure that the new power cord meets the following
requirements: detachable type, UL listed/CSA certified, VDE approved or its equivalent,
4.5 meters (15 feet) maximum.
- In case of malfunction, immediately unplug the printer from the power source.
- Do not attempt to fix this product by yourself, as opening or removing covers may
expose you to dangerous voltage points or other risks. For service, contact
Monoprice Technical Support at [email protected]
Unplug this product from the wall outlet and refer servicing to qualied service personnel
when:
- The power cord or plug is damaged, cut, or frayed.
- Liquid was spilled into the product.
- The product was exposed to rain or water.
- The product has been dropped or the case has been damaged.
- The product exhibits a distinct change in performance, indicating a malfunction.
- The product does not operate normally after following the operating instructions.
- Keep the printer out of the reach of small children.
Disposal instructions
To minimize pollution and ensure utmost protection of the global environment, dispose of
this product only in accordance with local, state, or Federal regulations for the disposal of
electronic waste.
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C

Useful Advice
Have supervision when used by a minor.
The resin is an irritant to skin and eyes. Always wear gloves when coming into contact with
the liquid resin.
The printer should be operated on a stable and level surface, preferably away from
direct ambient light.
The box contains
- Duplicator 7 LCD printer with black hood and platform
- Power cord
- VAT with film
- HDMI® cable to connect the 3D printer to the secondary video output of your
computer
- USB cable to connect your computer to the printer
- 1 replacement film for the VAT
- Plastic spatula
- 250ml UV resin
Recommended items
- Gloves
- Paper towels
- Industrial alcohol
- Soft brush or sponge to clean the object
- Plastic container to rinse the resin
Minimum computer requirements
- Dual Core processor or above.
- Windows® or Linux® OS
- Software NOT compatible with Mac® OS X®
- 4 GB RAM memory or above
- Double video output graphics card (one for your monitor, one for the printer HDMI,
with 500MB memory or above. A laptop with dual video output (HDMI) is also
possible.
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1.0 Set the printer display:
1.1 Right click the mouse and click the display setting.
1.2 Turn on the printer, connect the HDMI® and USB cables to the computer.
The computer will install the Arduino Mega 2560 driver automatically.
Installation & Assembly
Instructions
1.3 Right click the mouse and click the display setting
1.4 Click the display No.2, then the No.2 display would be highlighted in green color.
1.5 If your display is not horizontal. Change it to horizontal by clicking Direction and
choosing the Horizontal option.
1.6 Apply the change.
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2.0 Set the Creation Workshop software:
2.1 Decompress the Creation Workshop zip file. Click the Creation
Workshop logo to run the software.
2.2 Click the Configure button.

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2.3 Confi gure the machine:
Click Configure.
Choose the current connection port, which could be Com5, Com6, etc. depending
on your computer.
2.4 Select the screen size 2560x1440, then click + to add the secondary screen.
Apply the change.

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2.5 Click the Connect button to link the printer and computer.
Once connected, the Disconnect button will be highlighted.
3.0 Test the Z axis movement and raise the Z axis by at least 50mm, to check that the first
layer was printed properly or not.
Click Control, then click the +Z option to raise the building plate by 50mm/click.
Note that the Z button is for Z axis home.
10= raise Z by 10mm/click
1= raise Z by 1mm/click
-z= lower Z by 50mm/click

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4.0 Open the model fi le and verify that the first layer prints properly or not:
4.1 Click the Open File button.
4.2 Choose and open any 3D model with a STL or OBJ file extension.
4.3 Click the 3D View button and adjust the object. Click + to add Raft and Support.

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4.4 Click the + button then the ___ button to add the Raft.
4.5 Right click the screen and move the print object, so you can the raft, as shown below.

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4.6 Click the Slicing button, then click the Slice button to begin slicing.
4.7 Click the Print button. You should see the image projected on the LCD screen, which
is exactly the same as the first layer on your computer screen.
Congratulations! You have successfully installed the machine. Now you can start
your fi rst print.
5.0 First print:
5.1 Click the Z axis home button to put the
build plate in the home position.
5.2 Repeat the 7.0 to print the first object.

Now you have your printer installed and congured. Please read these
software instructions to understand the different settings before starting.
Let’s start by printing the rst object using the stock resin and do the
printout at the lowest resolution so that the test doesn’t take too long. You will
nd some test objects (STL le) in the folders supplied with the software.
1. Switch on your computer and the switch on the Duplicator 7. Open the
software and load an object (STL, OBJ, or AMF).
2. With the object loaded and located in the build area,check the settings of the
printing profile.
3. Set the values in the Setting fields to:
- layer thickness = 0.100 mm
- exposure time = between 6.000-12.000
- for other resins and resolutions check the exposure times stated
- exposure time for bottom layers = between 100.000 and 120.000 ms
- number of such bottom layers = between 3 and 5
These settings can be adjusted depending upon the complexity of the desired
object. Finally click Apply Changes to save any changes. If you do not, your
changes will be lost.
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FPrepare the
Duplicator 7 for Printing

The screen should look as follow:
4. Now click 3D View and check that the object is correctly placed inside the
printing area. Press the Slice button to start the slicing operation. A
confirmation window will be displayed.
You can check again that the correct profile is being used and if not, you can
select the correct one. Always click on the Slice button if you adjust the
layout in any way.
5. Now check the Slice View screen to check that the first layer of every object
is in contact with the build base. If it is above the build platform,it will
not adhere. If you click on the view box located in the bottom left corner,
you can scroll forward through the slicing views using the slider bar and
check that the object is always inside the build area. Ensure that objects are 2
squares inside the edge of the build area shown.
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6. Place the vat on top of the LCD screen and tighten the retaining Z brackets down
to secure it in place. If you tighten it too much,the LCD screen will go white at
the edges. The tray should not be able to be lifted up.
7. Slide the platform onto the platform arm and firmly tighten the central knob. Loosen
the 4 screws at the sides,so there is free movement of the platform up and
down. IMPORTANT! If these knobs are not completely loose, you could crush the
bottom screen when lowering it with the home function).
8. Press the Home button to lower the platform onto the screen. The platform will
move down to rest on the screen (level 0 in Z axis.) and stop. Remove the
hood. With one hand press down on the middle of the glass platform and with the
other tighten a side bolt, then repeat with the other bolt. Now the 3 knobs should be
tight. You can check that the platform is making contact with the screen by pressing
lightly when it is on and it will appear white in the corners. You can check that the
screen is working by pressing the Show Calibration button located on the Control
tab and a grid will appear. It is now locked in the home position.
9. Press the +10 steps button in Control and the platform will rise enough to pour
resin in under it. Remove the hood and fill the vat with resin. Prints don’t consume a
lot of resin, so a quarter full vat will be enough for a medium sized print. Note that
once started, the print can’t be paused and refilled, so it’s safer to overfill and reuse
the resin. Place the hood back on the printer and move the platform back to the
Home by hitting the -1 step button 10 times. Leave a few seconds between clicks to
enable the resin to move out. It is essential it is grounded before starting printing. If
you miscount, it is safer to press an additional step. The platform will not move
further when correctly located.
10. Now you are ready to print. Press Play. Once the print has finished, the computer will
show Print 100% complete and will stop. Do not remove the hood during the print,
or the print will stop.
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Cleaning the Machine
and Your Printed Objects
These steps will reduce any resin spillage and keep your machine clean.
1. Go to Control and move the platform up enough so the base of your object is clear
of the vat. Remove the hood on the print platform. Tilt the platform backwards to
allow the excess resin to drip back into the vat.
2. With absorbent paper under it, remove the platform completely and set it down
on a surface that will not be affected by resin. Place the hood back on immediately
to protect the resin in the vat from light.
3. Remove any excess polymer with paper first. Place the platform in a washing-up
bowl and remove the objects by sliding the scraper in at their base. Wash off any
liquid polymer with alcohol. You can gently clean it with a soft brush or sponge,
taking care not to damage it. It will not achieve full hardness until after post
exposing in light. If you have an ultrasonic cleaner,this will clean it without the
possibility of damaging it.
4. Check it is thoroughly clean then place it in a container for 10-20 minutes in an area
with bright sunlight. You can use light from a UV lamp. When it has been
completely post exposed, it will be stronger and have a dry surface. You will notice
that it darkens in color as it is exposed to light. Dry it and check that it is dry, if not
repeat.
5. Clean the build platform with industrial alcohol. Chip off any cured resin and
dry it before inserting it back into the printer.
6. You should empty the vat and clean it every time in case you have any solid
pieces on the bottom, as these would prevent the platform from homing
correctly. Loosen the Z brackets and remove the vat from the printer.Pour the resin
back into the bottle through a strainer. Place the vat on a at surface and wipe the
base of the vat with absorbent paper. Make sure it is clean and not damaged. If it
is not flat, clean, and tight like a drum, remove the film and replace it with a new
piece.
7. If you have a leak on the screen it is easy to remove the hardened resin
without damaging the screen by chipping it off with a blunt, non-serrated
knife.
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G

Detailed Creation Workshop
Software Instructions
System Compatibility
Creation Workshop is a .NET 3.5 application written in C#. This is native to the Windows
Operating System, but it also runs on many versions of Linux®/Posix using the Mono
Framework (http://www.mono-project.com/Main_Page). You will need to download and
install Mono when using Creation Workshop on a Linux-based system. Windows® users may
need to run the application as Administrator.
Main screen
Click to open files in one of the following formats: .STL, .OBJ, .3DS, or .AMF.
You can also open scene files with the .CWS extension.
Click to save the current object as a .STL or .CWS le. The .CWS format allows
you to prepare a scene to be printed repeatedly in the future, together with
supports and positioning.
Click to start the connection between your computer and your Duplicator 7 3D
printer. Once the button is grayed out, this means that the printer is
connected.
Click this button to disconnect your printer from the computer. If the button is
grayed out, it means that the machine is currently disconnected.
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H

These three buttons start, pause,and stop a print.
These buttons only become active once you have sliced your
object.
Clicking this button allows you to view the 3D objects within
their boundary box. You can add supports in this function.
Clicking this button accesses the Slicing screen. You can see
the individual slices that have been generated as well as the
G-code.
This allows you to control the Z axis motor, home it, and lift
it after a print has finished.
This is the setup screen that allows you to congure the slicing
and printing proles.
1. Loading a Model
Click here to Load your file. Multiple objects can be loaded and manipulated
independently. You can also open scene les with the .CWS extension.
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