uBuild-3D MR BOT 280 User manual

Mr Bot 280
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Manual
UBUILD-3D
MR BOT 280

Mr Bot 280
Welcome!!!
This instruction manual is designed to help you get started
quickly, safely, using your printer and enjoy the experience of
quality prints it can deliver.
Take a moment to read the instructions in the manual even if
you are a familiar 3D printer user.
Yours sincerely,
The uBuild-3D development and production team.

Mr Bot 280
Contents
Basic information............................................................................................ 1
Where is what.................................................................................................................. 1
Specifications...................................................................................................................4
Printer and Printing properties........................................................................4
Compatible Materials.............................................................................................4
Physical dimensions ...............................................................................................4
Software...........................................................................................................................5
Electrical properties................................................................................................5
Included in the box..................................................................................................5
Warranty .............................................................................................................6
Terms and Conditions of Warranty Validity..............................................6
Secure use information................................................................................8
A. Possible dangers and warnings...............................................................8
B. Protection against electric shock ...........................................................8
C. Heat protection.....................................................................................................8
D. Fire protection.......................................................................................................8
E. Other hazards.........................................................................................................9
F. Warning for conversions................................................................................9
Safety signals ...................................................................................................................9
Preparing your printer ............................................................................... 10
Opening the box ......................................................................................................... 10
Setting up the printer .............................................................................................. 10
A. Assembly of the LCD display................................................................... 11
B. Mounting the spool holder and teflon tube brackets...........14
Nozzle and print surface adjustment ..........................................................17
First print ........................................................................................................................... 19
Software / Installer.....................................................................................21
Download..........................................................................................................................21
How we use Cura ..........................................................................................21
Use of Cura ......................................................................................................................21
Select a print quality (Profile).........................................................................21
Save the file................................................................................................................ 23

Mr Bot 280
Preparing the model............................................................................................ 23
Updates and upgrades.......................................................................................... 25
Other functions ............................................................................................. 25
Replacing the filament...........................................................................................25
LCD menus and various operations.............................................................26
Maintenance................................................................................................... 28
Terms of Use .................................................................................................. 29
General terms ...........................................................................................................29
Product prices and delivery costs ............................................................29
Product colours.......................................................................................................30
Time of delivery ......................................................................................................30
Order of products and consumer protection...................................30
Personal data protection security..............................................................31
Procedure of placing an order through this e-shop....................31
Return of products................................................................................................33
Contact...........................................................................................................................34
Miscellaneous...........................................................................................................34
Product manufacturer’s and e-shop’s liability.................................35
Governing law...........................................................................................................35
Open Source................................................................................................... 36

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Basic information
Where is what
LCD screen
1. Function button
2. Print surface
3. Nozzle
4. Sensor
5. Spool holder
6. Teflon tube
7. Stop (Press continuously for 1-2 seconds)

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1. Power supply cable
2. USB cable
3. Operating switch (ON/OFF)
4. Led operating switch (ON/OFF)

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1. Nozzle temperature
2. Print surface temperature
3. Fan Mode
4. Head position in the print area
5. FeedRate
6. Print progress

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Specifications
Printer and Printing properties
Print Area
Print Volume
Print plate leveling process
Print plate printing temperature
Extruder printing temperature
Top Print Speed
Average Print Speed
Print head travel speed
Layer Thickness
Feader type (extruder)
Positioning accuracy (X, Y, Z)
Nozzle heat up time
Print plate heat up time
Operating sound
275 mm x 275 mm x 275 mm
20,800 cm3
Sensor auto bed leveling
50 °C to 120 °C (heated borosilicate glass)
160 °C to 260 °C
150 mm/sec
50 - 70 mm/sec
Up to 250 mm/sec
0.05 mm to 0.32 mm (with 0.4 mm default
nozzle)
Geared stepper motor
12.5, 12.5, 2.5 microns
~1,5 minute
~1,5 minute for 70°C, ~3,5 minute for 110°C
57dBA
Compatible Materials
PLA, PLA/PHA, ABS, HT, PETG, XT, NGEN, NGEN_FLEX, TPU,TPE, NYLON,
WOODFILL, CORKFILL, GLOWFILL and more.
Filament Sizes
Print technology
Print system
Filament included
Standard 1,75 mm
Fused Deposition Modeling (FDM)
Open filament system
PLA spool 750gr (random color)
Physical dimensions
Overall Dimensions
Operating Dimensions
Weight
Shipping box dimensions
Shipping weight
52 cm x 54 cm x 56 cm
71 cm x 64 cm x 66 cm
20 Kg (without filament spool)
57 cm x 60 cm x 60 cm
25kg

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Software
Software
Supported Operating Systems
Supported file types
Connectivity
Cura
Windows
STL and OBJ
SD card (included), USB cable
Electrical properties
Power Requirements
Power Output
Power consumption
100 - 240 VAC
500 Watts 24 Volt 21 Amp
416 Watts
Included in the box
Mr Bot 280 3D printer
Quick Setup Guide
Spool of filament
Calibration sheet
SD Card
Power cord
USB cable
Spool holder
LCD and support components
PTFE tube and support components
Glue stick
Bottle with bearing lubricant
Tools (1.5mm, 2mm, 2.5mm, 3mm, 4mm hex key and 6mm wrench key)

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Warranty
The products sold by this e-shop come with a two-year warranty. The warranty
period starts from the delivery of the products to the consumer. This e-shop
or/and duly authorized persons will correct and/or repair any failure or
malfunction of the sold products or their parts, within a reasonable time period
and in accordance with the following terms and conditions.
Terms and Conditions of Warranty Validity
A. In case a product exhibits signs of defect, failure or malfunction the
consumer is advised:
1) To notify this e-shop promptly and in any case before the end of the
aforementioned warranty period.
2) To supply the proof of purchase.
3) To supply all the relevant information concerning the nature of the defect,
failure or malfunction to this e-shop (or/and to any duly authorized persons who
will correct and/or repair any failure or malfunction of the sold products or their
parts), promptly and in any case before the end of the aforementioned warranty
period.
B. The consumer is kindly informed that:
1) The consumer takes full responsibility for the transport of the product to
and from the facility in which the technical evaluation/check, service and/or
repair of the product will be conducted. The aforementioned facility will be
indicated to the consumer by this e-shop (or/and by any duly authorized
persons who will correct and/or repair any failure or malfunction of the sold
products or their parts).
2) This e-shop (or/and the duly authorized persons who will correct and/or
repair any failure or malfunction of the sold products or their parts) will
determine, within a reasonable time period, the suitable remedy for the failure or
malfunction of the sold products or their parts.

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3) According to the applicable law and depending on the unique
characteristics of each situation, the warranty may consist in repair, replacement
of parts or total substitution of the product.
4) This e-shop will bear the costs of the repair, replacement of parts or total
substitution of the product.
5) Any defective, damaged or replaced parts or products will become
property of this e-shop.
C. The aforementioned warranty does not cover:
1) The consumable products coming with the product or its parts.
2) The wear/damage and/or malfunction which has occurred because of the
product’s normal operation and use. Indicatively, the warranty does not cover
such wear/damage and/or malfunction of the moving parts, control panels or
elements interacting with the product operation.
3) The wear/damage and/or malfunction caused by inappropriate, abusive
or neglectful use of the product or caused by accidents. Indicatively, the
warranty does not cover such wear/damage and/or malfunction caused by a
fall, transport without the use of the appropriate packaging or abusive use of
sharp or cutting elements.
4) The wear/damage and/or malfunction caused owing to the consumer’s
non-compliance with the relevant operation and maintenance manual(s).
5) The wear/damage and/or malfunction caused owing to any unauthorised
interference with, modification, alteration or repair of the product.
6) The wear/damage and/or malfunction caused owing to voltage disorders
(e.g. voltage fluctuations or instantaneous blackouts).
7) The wear/damage and/or malfunction caused owing to the exposure of
the product to damaging conditions such as to extreme weather conditions,
humidity, floods, fire, chemicals, corrosion, oxidation, spillage of liquids or food
etc. and in general to any harmful circumstances.
8) The wear/damage and/or malfunction caused owing to the use of
software different from the one recommended by this shop or modified or
altered.
9) The wear/damage and/or malfunction caused owing to the use of printing
materials not recommended by this e-shop.

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Secure use information
A. Possible dangers and warnings
Your printer has moving parts as well as heated parts. Always be alert to
potential dangers when the printer is on.
B. Protection against electric shock
Do not open the electronic parts of the printer when it is in use. Before opening
the electronic parts panel, always close the printer and remove the power cord
from the electrical outlet. After that, wait five minutes before removing the
electronic components chassis.
C. Heat protection
Do not touch the brass nozzle and the above metal parts when the printer is in
operation as these parts are hot and there is a risk of injury. Allow a reasonable
amount of time to cool after work is completed before touching. This time may
in some cases be 20 minutes. Do not touch the plastic as it extrudes from the
nozzle. The plastic is hot and can stick to the skin causing burns. Also, the print
surface may be hot enough to cause a burn.
D. Fire protection
Do not place flammable materials or liquids on or near the printer when plugged
in or in use. Also, materials such as liquid acetone, alcohols or other liquids can
produce flammable fumes. Do not touch the nozzle with flammable materials
during printing, as this may cause a flame.

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E. Other hazards
Do not touch the moving parts of the printer when it is in use. If you have long
hair or clothes, be careful not to get caught on the moving parts of the printer.
You are not allowed to use the printer in people under the age of eighteen
without adult supervision. There are small objects in the printer that small
children can swallow.
F. Warning for conversions
At uBuild-3D, we respect your freedom to make modifications to your printer.
However, the warranty provided does not cover damages caused by
modifications or attempts to modify your printer.
Safety signals
The following stickers have been placed in the printer in areas that are
considered dangerous to warn the user of upcoming injuries.
Risk of burns
Caution danger

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Preparing your printer
Opening the box
The uBuild-3D Mr Bot 280 printer is very well packaged in a five-card carton and
foam-protected polyethylene.
Open the box and remove the protective cardboard with polyethylene foam.
Lift the printer with your hands as shown below.
Setting up the printer
After removing the packaging, to operate your printer you only need two steps,
a) assembling the LCD display, and b) installing the spool holder. Your printer
settings are entirely based on the relevant function menu.

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A. Assembly of the LCD display
What you will need for the assembly:
1. Allen key 2mm
2. Allen key 2,5mm
3. LCD rear panel 1x
4. LCD display (pre-assembled) 1x
5. Rectangular sheet metal
6. M3x6mm button head screws 3x
7. M4x6mm button head screws 3x
8. M3x6mm countersunk screws

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Step 1
Locate the holes on the LCD rear panel
(5) before you proceed to screw the
rectangular sheet metal.
Step 2
With the M3x6mm half-rounded head
screws (2), screw the LCD’s rear panel
(5) with the rectangular sheet metal.
Step 3
Locate where to attach the sub-
assembly under the printer and screw it
in place with the M4x6mm half-
rounded head screws, as shown in the
photo.

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Step 4
Your semi-assembled printer should
look like in the photo.
Step 5
Connect the numbered ribbon cables
to the corresponding numbered plugs
on the back of the LCD display.
Step 6
Screw the pre-assembled part of the
LCD display to the printer's sub-
assembly with the three M3x6mm
screws (4).

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B. Mounting the spool holder and teflon tube brackets
What you will need for the assembly:
1. Teflon tube bracket 1x
2. Teflon tube bracket with pneumatic connector 1x
3. Teflon tube 1x
4. Allen key 2,5mm
5. M4x6mm button head screws 4x

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Step 1
With the M4x6mm half-rounded head
screws, screw the teflon tube brackets
to the right of the printer. The bracket
with the pneumatic connector goes to
the lower position (see circle).
Step 2
Pass the tube from the top bracket and
slide it down.
Step 3
Push it into the pneumatic connector as
far as it goes.

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Step 4
Connect the other end of the tube to
the extruder's pneumatic connector.
Step 5
Mount the spool holder. First diagonal
and up, as in the photo, so the top
bracket of the spool holder passes from
the center hole, and then slide down so
the two little brackets attach with the
two rectangular holes.