3DGence DOUBLE P255 User manual

USER’S MANUAL
3DGence DOUBLE P255

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3DGence DOUBLE P255 | version 09.2018
Contents
I INTRODUCTION ............................................................................................................................................................................4
1. INTRODUCTION......................................................................................................................................................................4
2. PRINTING MATERIALS ............................................................................................................................................................4
3. SYMBOLS ................................................................................................................................................................................5
3.1. Auxiliary symbols used in the User's Manual .................................................................................................................5
3.2. The printer's backlight indications..................................................................................................................................6
4. SAFETY MEASURES.................................................................................................................................................................6
4.1. General information .......................................................................................................................................................6
4.2. Relocating the printer.....................................................................................................................................................8
4.3. Choosing proper installation place for the printer .........................................................................................................8
4.3.1. Specification of connection .......................................................................................................................................10
4.4. Before starting the printer............................................................................................................................................10
II PRINTER DESCRIPTION ..............................................................................................................................................................11
1. DESIGN OF PRINTER .............................................................................................................................................................11
1.1. Kinematic system..........................................................................................................................................................13
1.2. Heatbed ........................................................................................................................................................................14
1.3. Extruders.......................................................................................................................................................................14
1.4. Dual hotend module .....................................................................................................................................................15
1.5. Printer's power supply management ...........................................................................................................................15
2. SET OF PRINTER'S ACCESSORIES ..........................................................................................................................................16
3. USER INTERFACE ..................................................................................................................................................................16
3.1. Idle state menu .............................................................................................................................................................16
3.2. Menu during operation ................................................................................................................................................24
3.3. Menu structure.............................................................................................................................................................26
III PREPARATION FOR WORK ........................................................................................................................................................30
1. FIRMWARE UPDATE .............................................................................................................................................................30
1.1. Updating the firmware .................................................................................................................................................30
2. UNPACKING AND STARTING THE PRINTER ..........................................................................................................................30
2.1. Unpacking the printer...................................................................................................................................................30
2.2. Starting the printer .......................................................................................................................................................31
3. HEATBED PREPARATION ......................................................................................................................................................31
3.1. Heatbed calibration ......................................................................................................................................................31
4. ACTIVITIES CONNECTED WITH PRINTING MATERIAL...........................................................................................................33
4.1. Material loading............................................................................................................................................................33
4.2. Material unloading .......................................................................................................................................................34
4.3. Failure to load/unload material....................................................................................................................................35
4.4. Change of material during printing process .................................................................................................................36
4.5. Depletion of material during printing...........................................................................................................................37
IV FIRST PRINTOUT .......................................................................................................................................................................37
1. STARTING A READY CODE FROM SD CARD ..........................................................................................................................37
2. ASSESSMENT OF THE PRINTER OPERATION QUALITY..........................................................................................................38

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3. REMOVING PRINTOUTS FROM THE PRINTER.......................................................................................................................39
4. CLEANING.............................................................................................................................................................................40
4.1 Hotend cleaning.............................................................................................................................................................40
4.2. Heatbed cleaning ..........................................................................................................................................................40
5. SLEEP MODE.........................................................................................................................................................................41
6. SWITCHING THE PRINTER OFF .............................................................................................................................................41
V SOFTWARE ................................................................................................................................................................................42
1. INTRODUCTION....................................................................................................................................................................42
1.1. Quality guarantee .........................................................................................................................................................42
2. INSTALLATION ......................................................................................................................................................................42
VI DUAL HOTEND module ............................................................................................................................................................43
1. HOTEND CHANGE ............................................................................................................................................................44
VII COMPLEMENTARY INFORMATION..........................................................................................................................................47
1. AUTOCOMPENSATION AND AUTOCALIBRATION.................................................................................................................47
VIII SERVICE ACTIVITIES ................................................................................................................................................................48
1. INDICATIONS FOR HEATBED CALIBRATION..........................................................................................................................48
1.1. Heatbed change............................................................................................................................................................48
2. DUAL HOTEND MODULE CALIBRATION ...............................................................................................................................49
2.1. Precise axes calibration ................................................................................................................................................49
2.2. Calibration of offsets along X, Y and Z axes ..................................................................................................................51
3. SYSTEM ERRORS AND THEIR REMOVAL ...............................................................................................................................55
IX ENCLOSURE ASSEMBLY ............................................................................................................................................................57
IX DICTIONARY..............................................................................................................................................................................59

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3DGence DOUBLE P255 | version 09.2018
I INTRODUCTION
1. INTRODUCTION
Thank you for choosing 3DGence DOUBLE P255 printer. This User's Manual provides clear and legible information on this
professional 3D printer in order to guarantee the highest quality of printing as well as long-term repeatable and safe operation
of the printer. The mission of 3DGence is to provide top-class professional equipment and solutions.
The User's Manual contains information necessary for proper and safe use of the printer. Read the entire User's Manual
carefully before using the printer. The supporting document for the User's Manual is the technical documentation available on
our website: www.3dgence.com.
The persons who have not read the User's Manual must not use the printer. Wrong use may damage the printer or cause
bodily injuries or even endanger the life of the operator.
On the last pages of this User's Manual there is the dictionary of terms and concepts connected with 3D printing. The dictionary
will facilitate understanding the professional terminology and explain some terms appearing in this User's Manual.
Before starting the operation of 3DGence DOUBLE P255 printer, the user must read the entire User's Manual and accept the
instructions and exceptions included in the User's Manual.
2. PRINTING MATERIALS
FFF technology (Fused Filament Fabrication) used by 3DGence DOUBLE P255 printer consists in depositing plasticized
thermoplastic material (plastic) layer by layer. This plastic is the printer's operating material. The thermoplastic material is used
in the form of a filament with a precisely defined diameter, wound on a spool (fig. 1). 3DGence DOUBLE P255 printer uses the
filament with the diameter of 1.75 mm.
Fig. 1 Filament spool

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3DGence DOUBLE P255 printer is equipped with two extruders and two hotends. Thanks to this, two materials can be used in
one printed model. This solution makes it possible to:
•print geometrically complex models that require soluble support structures,
•print two-colour models,
•print functional models that combine characteristics of two specific materials in the required manner.
3DGence DOUBLE P255 printer can use a wide range of printing materials available in many colours. The Certified Material
Base, available at www.3dgence.com, has been created for 3DGence DOUBLE P255 printer.
3DGence is not responsible for the quality of printouts made of the materials other than those included in the Certified Material
Base and for damage caused by the use of such materials as well as it does not provide support for the quality of the printouts
made of the filaments other than those included in the Certified Material Base.
3. SYMBOLS
There are warning symbols placed on 3DGence DOUBLE P255 printer to warn about potential hazards. The following symbol
indicates high temperature occurring in a given place:
Take special care when working in zones marked with the above symbol and use protective gloves. Failure to comply with
safety rules may result in severe burns.
3.1. Auxiliary symbols used in the User's Manual
Throughout this User's Manual the following symbols are used. They identify the situations that are potentially dangerous to
health or may cause damage to the printer. Always adhere to the warning symbols. Negligence may cause the printer's damage
excluded from the guarantee cover as well as bodily injuries.
DANGER:
The situation or procedure described is potentially dangerous and it may result in damage to the printer or
cause injury to the operator. Exercise care.
ATTENTION:
The situation or procedure described is potentially dangerous and it may result in damage to the printer.
Exercise care.
PROTECTION:
Protective gloves, delivered with the printer, must be worn when performing the activities described. Put on
protective gloves before performing these activities.

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3.2. The printer's backlight indications
3DGence DOUBLE P255 printer is equipped with LED backlight located under the printer's upper plate. The LED backlight
illuminates the printout during the printer operation and is also a form of signalling device. The description of all backlight
colours and their meanings is given below (table 1).
Tab. 1 Meaning of backlight colours in 3DGence DOUBLE P255 printer
COLOUR
MEANING
Green
Safe temperature of the heatbed (below 40°C). After completed printing, the printout can be
safely unloaded.
Red
Heatbed temperature exceeds 40°C.
Do not touch the heatbed –there is a risk of burns. After completed printing, do not remove
the printout from the heatbed until the backlight turns green.
White
The printer is working. The heatbed is hot - do not touch it.
There is a serious risk of burns.
Yellow
Failure of the heating devices. If the hotend has been installed correctly, immediately
disconnect the printer from power supply and contact the service department.
The backlight colour indicates the heatbed temperature not the hotend temperature! The hotend temperature is
shown only on the display!
4. SAFETY MEASURES
The information below describes the correct operating conditions of 3DGence DOUBLE P255 printer. Failure to comply with
the indications and contraindications may significantly reduce the life of the printer, violate the guarantee conditions or
endanger the health of users.
4.1. General information
The printer must not be installed:
•in open space, outdoors,
•in damp places or in places at risk of flooding,
•in the vicinity of volatile and flammable substances,
•near concentrated acids, caustic vapours or corrosive substances,
•in places easily accessible to children,
•using the network without a protective earth lead (PE),

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•using the network without a fuse or the network protected with a fuse with a rated current intensity below
16A.
Do not:
•touch the printed model, heatbed or hotend during printing,
•insert any body parts or objects into the printer's working area during printing –the printer may get damaged
or the operator may get injured,
•touch the heated nozzle with your hands, even with protective gloves,
•bend over the heated hotend or the hotend area during the printer operation - there is a risk of facial burn
injuries,
•touch live parts,
•touch linear guides and trapezoid bolts during the printer operation,
•operate the printer with wet hands,
•put any objects on or under the printer's table –during the printer operation or when the printer is at
standstill;
•put containers with liquids on the printer,
•leave the working printer without the control of an adult who is able to take appropriate steps in the event
of a failure,
•leave the working printer in a room with children or animals,
•disassemble the printer or hotends; make unauthorized repairs –the printer or hotends may get damaged.
Adhere to the following instructions:
•use only earthed power sources (to avoid electric shock),
•when disconnecting the plug from the power source, pull the plug by its housing not by the cable,
•disconnect the printer from the power source before any repair or maintenance activities,
•make sure that the mains voltage corresponds with the printer's specifications,
•protect the power lead and plug against damage,
•disconnect the power plug before relocating the printer,
•disconnect the power plug if the printer will not be used for a longer period of time,
•periodically remove external contaminations from the hotend nozzles (using non-flammable material),
•always wear protective gloves when operating the printer,
•ensure the possibility of quick response in the event of a break-down/print failure,
•each time before starting the printer, carefully inspect the direct vicinity of the printer and remove all
obstacles and contaminations with which the printer could collide or which could in any way hinder the free
movement,
•guarantee free access to the printer for the operator, throughout the printer operation.
Heated heatbed and hotends remain hot even after completed printing. Check their temperature on the display before
touching them (fig. 2) or wait at least 30 minutes after switching the printer off (e.g. in order to clean or remove the
model, change the hotend, etc.)
Fig. 2 Temperature indications for: 1, 2. hotends | 3. heatbed

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4.2. Relocating the printer
To ensure the safety of the user and to avoid accidental damage to the printer, the following rules must be followed when
relocating the printer:
•before relocating the printer, switch it off and disconnect it from the power source,
•the printer should be cooled down, the operating material and all loose elements and accessories should be removed from
the printer,
•the printer should be lifted only by the handles designated for this purpose (fig. 3); do not lift the printer by any other
elements,
•the printer should not be carried by children and the elderly due to its significant weight (about 25 kg).
Fig. 3 Locations of handles for printer handling
4.3. Choosing proper installation place for the printer
The printer installation place should meet the following conditions:
•the printer should work at room temperature,
•the printer is not designed for work in a dusty environment,
•ventilation suitable for a room size should be ensured,
•the printer should be installed on a hard and stable ground,
•the printer should not be exposed to direct sunlight,
•ensure sufficient free space around the printer based on the printer's external dimensions and working range
of the axes (fig. 4, 5),
•keep the printer away from other heat sources and draughts,
•the printer's installation place should be equipped with a 230V/50Hz mains socket (110V version for the USA
market),
•uninterruptible power supplies (UPS) should be used in order to ensure that the printing process is not
stopped in case of instantaneous current decay.

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Fig. 4 The maximum dimensions of the printer taking into account the extreme
positions of the heatbed –right side view
Fig. 5 The maximum external dimensions of the printer –overview

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4.3.1. Specification of connection
The electrical characteristics of the 3DGence DOUBLE P255 are shown below (tab.2.3). The connection should be adapted to
the given values.
➢DOUBLE P255 printers with a serial number that begins with the symbol: DOUB
(the printer's serial number is located on a sticker located on the back of the printer and it is preceded by the symbol: S/N).
Voltage: 220-230V AC;
Frequency: 50-60 Hz;
Network with a protective earth lead (PE), protected with a fuse of a rated current intensity not less than 16A;
Rated power consumption: 600 W (maximum instant power consumption: 1.9kW);
Current intensity: ~2,6 A (8 A).
Tab. 2 Electrical characteristics of devices with a serial number beginning with the "DOUB" symbol
Working condition
Power consumption of the device
Standby
4 W
Warming up
500 W
Printing
120 W
Maximum instant power consumption
1900 W
➢DOUBLE P255 printers with a serial number that begins with the symbol: DOUBA
(the printer's serial number is located on a sticker located on the back of the printer and it is preceded by the symbol: S/N).
Voltage: 110V AC;
Frequency: 50-60 Hz;
Network with a protective earth lead (PE), protected with a fuse of a rated current intensity not less than 16A;
Rated power consumption: 600 W;
Current intensity: ~5 A.
Tab. 3 Electrical characteristics of devices with a serial number beginning with the "DOUBA" symbol
Working condition
Power consumption of the device
Standby
4 W
Warming up
500 W
Printing
120 W
Maximum instant power consumption
600 W
4.4. Before starting the printer
Each time before starting the printer, make sure that the following conditions are met and the following actions have been
performed:
•check the conduits for abrasion or other visible defects. If the conduits are damaged, notify the 3DGence technical service
department immediately using the problem notification form at www.3dgence.com/support. Do not connect the printer
to power supply and/or make repairs on your own;
•confirm that filament is not contaminated, broken, bent or tangled on the spool;
•confirm that in the printer's working area there are no objects or remains of printouts that could cause a jam or damage
to the machine;
•check X axis and Y axis, confirm that their movements are not blocked by moving the printing module manually to the left
and to the right and by moving the heatbed manually forwards and backwards;
•confirm that the Z axis breaker (fig. 6) is not damaged, broken or bent and that it coincides with the Z axis endstop (is
aligned with the endstop notch);
•confirm that thermistors (temperature sensors) of hotends and heatbed properly. To do this, start heating the hotends
and heatbed and check that temperature indications on the LCD screen increase. A problem exists if def value is displayed;
•immediately before starting the printer, make certain that no person or undesirable object is within the printer's working
range.