Biqu B1 User guide

Catalogue

1. Packing List

2. Equipment parameters

3. Installation equipment

4. Platform Calibration
4-1 Platform Calibration
4-2 Fill in filament

5. Ready to print
5-1 Introduction to working mode
5-2 Installing Driver software
5-3 Install Ultimaker Cura Software
5-4 Software Settings
5-5 Usage of Ultimaker Cura Software

6. Start Printing
6-1 Offline printing
6-2 Online Printing

7. Other Functions
7-1 Manual leveling
7-2 Automatic Leveling（Optional）
7-3 Intelligent filament detection Sensor Module (Optional)
7-4 Model Preview
7-5 Marlin Operating System

8. Troubleshooting

9. Cautions

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BIQU-B1 USER MANUAL

1. Packing List

Wrench and screw

bag

（1set）

Diagonal pliers

（1pcs）

BIQU-B1
（1pcs）

TF card and card

reader （1set）

Nozzle

（2pcs）

Power cable

（1pcs）

Rack

（1pcs）

BLtouch stand

（1pcs）

Data cable

（1pcs）

Filament for test

（45g）

Cable tie

（5pcs）

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2. Equipment parameters

The basic parameters

Printer Name

BIQU-B1

Printing Size

235 x 235 x 270mm

Molding Tech

FDM

Nozzle Quantity

1 PCS

Layer Thickness

0.1mm - 0.3mm

Nozzle Diameter

Standard 0.4mm

Printing Accuracy

±0.05mm

Filament

PLA

Slicing Format

STL / OBJ/ AMF

Connecting Method

Via data cable / TF card / USB

Slicing Compatible

With Cura / Repetier-Host / Simplify 3D

Rated Voltage

100 - 120V / 200 - 240V 50 / 60 HZ

Output Voltage

24V

Rated Power

270W

Max Temp of Hot Bed

100

℃

Max Temp of Nozzle

260℃

OS compatible

with Win 7 / Win 10

Maxium operating speed

180mm/s

Max Printing Speed

100mm/s

Normal Printing Speed

60mm/s

Language Transform

Supported

Resume Printing

With resume printing function

Filament Run Out Detection

With filament run out detection function

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3. Installation equipment

Step 1

Connecting the terminal wire to the socket of the hot bed.

Step 2

There are two M5 threaded holes on the end of the 2040 aluminum

profile,which is used for mounting the M5×16 hex socket head screws.

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1.2040 aluminum profile—length 456mm (1pcs)

2. M5×16 hexagon round-head screws (2pcs)

3. M5×10 hexagon round-head screws (2pcs)

4. M4×8 hexagon cup-head screws (4pcs)

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Step 3

There is a M4 threaded holes on another 2040 aluminum profile.
When installation, users make the threaded hole face the metal sheet
part.

1. 2040 aluminum profile--length 456mm (1pcs)

2. M5×16 hexagon round-head screws (2pcs)

3. M5×10 hexagon round-head screws (2pcs)

4. M4×8 hexagon cup-head screws (4pcs)

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Step 4

1. T8 screw (1pcs)

2. Coupling device (1pcs)

There are machine screws inside the coupling device, which is used to
tighten the motor shaft and screw rod. The set screw is aligned with the plane
of the motor shaft when installing.

Step 5

1. M3×6 hexagon round-head screws (4pcs)

2. Hexagonal isolation column (1pcs)

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Step 6

4 in 1 terminal wire

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As shown above, installing the 4 in 1 terminal wire to its
corresponding position. Then there are two key slots on the metal
sheet part. Users can use a cable tie to fix the terminal wire through
them.

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1. Eccentric nut

Awareness: As the picture, please check whether the

interfaces are loose. If they are loose, please tight the eccentric nut
with wrench and make the groove of eccentric nut approach the
aluminum profile. Pulley on eccentric nut will preload aluminum
profile. The printer will be more stable by this way.

Step 7

Connecting the terminal wire on side to the motor’s port.

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Step 8

、

1. M5×25 hexagon cup-head screws（4pcs）

2. 2020 aluminum profile—length 323mm（1pcs）

Step 9

1. X slider sheet（1pcs）

2. Belt（1pcs）

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BIQU-B1 USER MANUAL

Step 10

1. M4×8 hexagon cup-head screws（2pcs

2. M4 boat-shape nut（2pcs）

3. 2020 aluminum profile—length 338mm（1pcs

4. M5×18 hexagon cup-head screws（2pcs）
The boat-shape nut may rotate during installation. Users could

use the screws to fix it on the aluminum profile.

）

Step 11

）

Installing the belt onto the 2020 aluminum profile.

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Step 12

1. M4 boat-shape nut（2pcs

2. M4×8 hexagon cup-head screws（2pcs）
Notice: The boat-shape nut may rotate during installation. Users

could use the screws to fix it on the aluminum profile.

When installation, in order to tighten the pulley and the belt,

users could push the parts slowly in the X direction.

）

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BIQU-B1 USER MANUAL

Step 13

1. M3×8 hexagon cup-head screws（2pcs）

Step 14

1. Feed tube（1pcs）

2. Quick connector（2pcs）

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Step 15

Step 16

1. M4×8 hexagon round-head screws（2pcs

2. M4 boat-shape nut（2pcs）
The boat-shape nut may rotate during installation. Users could

use the screws to fix it on the aluminum profile.

）

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Step 17

1. Type-C data cable（1pcs） 2. Cable tie（1pcs）

As shown above, there are two key slots on the metal sheet part.
Users can use a cable tie to fix the Type-C cable through them. But
before fixing the data cable, users would better leave a certain length
at the Type-C cable's end which closes to the nozzle. It facilitates the
movement of the nozzle.

Awareness:

1.do not unplug the Type-C data cable when the machine is on.

2.The Type-C cable is customized, it can not be replaced by others.

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Step 18

1. M4×16 hexagon round-head screws（1pcs）

2. Z axis limit module

Fixing the Z-axis limit module on the aluminum profile by using the

M4 threaded holes and the above screws.

Awareness: Please check all the screws and make sure that they are

properly installed.

Installation Finished！

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4. Platform Calibration

4-1 Platform Calibration

After the installation of BIQU B1, users need to perform a platform

calibration on BIQU B1. The steps are as follows:

Step 1

1. Power switch

2. Power cord socket

Awareness: Before turning on, please check whether the

voltage mode matches your household power supply. If not, you
can select the mode by using screwdriver.

Confirming that the wiring is steady and correct. Inserting one

end of the power cord into the power cord socket and the other
end into the household power supply, and then turn on the power
switch of the machine.

Awareness: do not unplug the Type-C data cable when the

machine is on.

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Step 2

①

②

④
③

Clicking on the touch screen homepage① “ Menu ” → ②

“

Movement

The nozzle moves back to the zero point of the Z axis, which is
above the platform. Twist the 4 hand-tight nuts counterclockwise
under the hot bed so that there is a distance of 3 ~ 6mm between
the hot bed and the nozzle.

”→③“

”→④“Z”。

Home

1. Hand-screw nut（4pcs

）

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BIQU-B1 USER MANUAL

②
①

③

Step 3

Select from the touch screen in the previous step ①“Back

“Leveling”→ ③“Point 1”.

When the nozzle moves to the "first point" position(as shown
below ), and user put a piece of A4 paper under the nozzle. Twisting the
hand screw nut to make the nozzle just contact with the A4 paper and
that the A4 paper can move smoothly with slight friction.

”→

②

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1. Hand-screw nut（4pcs） 3. A4 paper（1pcs）

2. Nozzle-head（1pcs
When users turn the hand-screw nut clockwise, the platform

will rise, and when users turn the nut clockwise, the platform will
fall.

In the same way, touch the "second point", "third point" and

"fourth point" on the screen in turn, and use the same method to
turn the hand-screw nut under the platform to manually level the
platform.

）

4. Nozzle（1pcs

）

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4-2 Fill in filament

1. Extruder handle

2. Filament

Cut a bevel on filament with Diagonal pliers, Holding the handle of the

extruder while users pushing the filament into the extruder into the feed tube.

Awareness: Please check all the screws and make sure that they are

properly installed.

Calibration Finished

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5. Ready to print

Offline

Install Cura slicing
software and control
the printer through
Cura slicing software
on the computer

Online

BIQU-B1

3D Printer

install driver software
to connecting PC and
printer

Insert TF card to print

5-1 Introduction to working mode

BIQU-B1 3D printer has two working modes, offline printing mode

and online printing mode.

Offline printing ： After adjusting the platform, save the slice file
generated by the slicing software in the TF card, then insert the TF card
into the TF card slot of the base, click "Print" from the main interface, and
then select the file in the TF card to print.

Online printing：Connected the computer with the 3D printer
through a data cable, using slicing software (such as Ultimaker Cura) to
control the printer. However, printing signal transmitted through the data
line may cause unstable factors such as signal interference. Therefore, it is

recommended that the customer use offline printing if possible.

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5-2 Installing Driver software

Turn on the power of the 3D printer, and connect the computer to
the 3D printer through the data cable. Right-click "This Computer"
"Properties" → "Device Manager", and then the window will show
above. If there is a yellow exclamation mark or question mark shown in
the box, users need to manually install the driver. If not, it means that the
driver has been installed automatically, no need to perform the following
driver installation steps.

Then follow the prompts shown above to install the driver software.

→

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Always install this driver software

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BIQU-B1 USER MANUAL

If the computer contains a firewall or anti-virus software, please

Close

manually agree to install the driver.

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After successfully installation, you can see a random port named
"Marlin USB Serial (com47)". 47 is a random number. Different numbers
may appear according to different PC types. (If it is the same computer
and the same printer, the port number will remain unchanged.) This port
will be used for data communication between the printer and the
computer.

Ps: Because the user's computer environment is different, after the driver
installation is complete, if there is an exclamation mark under the "port",
it means that the installation has encountered problems. At this time,
please unload this port and then install the driver again.

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5-3 Install Ultimaker Cura Software

Next

Agree

Double click the "Ultimaker.Cura-4.6.0-win64-beta.exe" application file,
the software installation window will show above, please follow the
below illustration to install the software.

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Select the location of the file installed.

Browse

Next

Next

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BIQU-B1 USER MANUAL

Ultimaker Cura Installation Completed!

Finish

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5-4 Software Settings

After the installation, if users open the software for the first

time, please set the software according to the following steps.

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Click“preference”→“configure cura”

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Software Setup Completed!

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5-5 Usage of Ultimaker Cura Software

Drag the model file of stl format into the slicing software window.

Select the printer model that users has previously set and select the slice
parameters.

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The slicing software starts slicing the model.

Slice Completed!

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6. Start Printing

6-1 Offline printing

Step 1 After the slicing software finishes slicing the model, users can

start printing. First save the G-code file to the TF card after model slicing,
and then use the SD card for offline printing.

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Step 2

Put the G-code file from TF card in the card slot.（As shown in the figure）

Step 3

Connect the power cord, turn on the machine, and select on the touch
screen homepage ①“print
saved in the TF card. The printer nozzle and hot bed start to heat. After
warming to the target temperature, the machine will automatically reset
to zero and then start printing.

After printing is completed, the print head and hot bed will
automatically cool down. When the temperature of nozzle and hot bed
reach indoor temperature, users then can remove the model.

”→②“

TFT SD”，Then select the slice file

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6-2 Online Printing

③

②

①

Step 1

The computer is connected to the 3D printer via a data cable. Insert one

end of the data cable into the USB port（as is shown below), and the other
end into the USB port of the computer.

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Step 2

Open the slicing software. Drag the stl format model into the slicing

software window to slice the model.

After slicing, click "Print via USB" to start online printing.

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7. Other Functions

①

②
③

④

7-1 Manual leveling

Step 1 Choose from the touch screen homepage ①“Menu”→ ②

“

Movement

”→③“Leveling”→

④“Point 1”。

Step 2 When the nozzle moves to the "first point" position(as shown below ),

and user put a piece of A4 paper under the nozzle. Twisting the hand screw nut to
make the nozzle just contact with the A4 paper and that the A4 paper can move
smoothly with slight friction.

When users turn the hand-screw nut clockwise, the platform will rise, and when

users turn the nut clockwise, the platform will fall.

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In the same way, touch the "second point", "third point" and "fourth point" on
the screen in turn, and use the same method to turn the hand-screw nut under the
platform to manually level the platform.

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Step 3 After manual leveling, you can click "Plane test" in the previous

The distance between the nozzle
and the platform is appropriate,
and the extruded filaments stick to
the printing platform.

If the distance between the nozzle
and the platform becomes too long, it
will cause the extruded filament
leaving printing platform. User should
twist the nut slightly and clockwise to
raise the platform a little bit.

If the distance between the nozzle
and the platform becomes too close,

it will cause damage to the nozzle
and printing platform.

User should
twist the nut slightly and clockwise to
low down the platform.

operation interface, the printer starts printing, and the customer can
evaluate the leveling effect of the platform based on the printing effect
for the next optimization.

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7-2 Automatic Leveling（Optional）

③

④

②

①

This function may require customers to purchase BLtouch，and install

it on the BLtouch stand of the 3D printer.

Choose from the touch screen homepage ① “ Menu ” → ②

“

Movement

Note: If users does not install BLtouch on BIQU-B1 or does not install it

properly, the touch screen will pop up a prompt window, as shown below:

”→③“

”→④“

ABL

ABL

”。

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The 3D printer starts to level automatically, the BLtouch probe
descends, and the nozzle head also descends. Until the probe touches the
first point of the platform, and the probe and nozzle start to rise. After
the first point, the nozzle-head would move above to the second point
and repeat this operation until all the 25 points on the platform are
tested.

After finishing the automatic leveling, user can click "Repeat" in the
previous operation interface, the printer starts printing, and the users can
evaluate the leveling effect of the platform based on the printing effect to
optimize the next step.

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BIQU-B1 USER MANUAL

7-3 Intelligent filament detection Sensor Module

①

②

④
⑤

③

(Optional)

If users has a higher pursuit, users can additionally purchase a smart
filament detection sensor module, and upgrade filament run out
detection module into an intelligent filament detection sensor module.

First, users remove the filament run out detection module from
BIQU-B1, and then installs the smart filament sensor module. Choosing
from the homepage of the 3D printer touch screen ①“ Menu”→ ②

“

Settings

”→ ③“

Feature

”→ ④“

Page down

”→ ⑤“

Filament sensor

”。

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On the option of Filament Sensor if shows “SMART” indicating

Filament
Sensor

ON

(default)

Filament run out
detection

SMART

Filament-jam detection

OFF

Neither filament run out nor
filament-jam detection

that the intelligent filament detection function is turned on.

Supplements:

When the button of "Filament Sensor" shows "ON", owes to
filament run-out detection module, BIQU-B1 starts detecting filament run
out status.

When the button of "Filament Sensor" shows "intelligent", owes to
smart filament detection sensor module, BIQU-B1 starts detecting
filament-jam status.

When the button of "Filament Sensor" shows "OFF", BIQU-B1 would
neither detect filament run out nor filament-jam status.

Normally, BIQU-B1 defaults to open filament run-out detection
function.

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7-4 Model Preview

When there are many 3D printed files in the TF card, it is difficult for
users to find the files they needed. The model preview function can help
users find their target files more quickly and directly.

The function will be described in detail below.

Step 1 Set up the UltimakerCura. Open the UltimakerCura, and then

click "preference" → "configurecura".

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Uncheck the "Add machine prefix to job name"

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Step 2 Save the G-code file in the root directory of TF card after

slice.

Note: Save the G-code file in the root directory of TF card, and name of
G-code should be same as the thumbnail’s.

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Step 3 Open the "ModelBuildV1.1.0_x64" file and find the

Open

OK

load the file

"BIGTREE_Tools" application in the folder, then double-click to open it.
The following software window will pop up.

Click "Load File" to find the stl format model file that users want to
slice. Select the model file and click "Open", the software will
automatically load the model.

After the model has been loaded, click "OK".

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Step 3 Select the appropriate model preview angle and click "Output

Output thumbnail

Save

Thumbnail". And then select the output location where the G-code file of
the model is located. Click "Save".

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After the thumbnail has been outputted, click "OK".

OK

The thumbnail file of the model is required to be placed in the same
folder with the G-code file.The 3D printer will automatically recognize the
G-code file corresponding to the thumbnail.

Note: Save the G-code file in the root directory of TF card, and name
of G-code should be same as the thumbnail’s.

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Step 4 Choose from the touch screen homepage ①“Menu”→ ②

②

①

⑤

③

⑥

④

“

Settings

→ ⑥“Files Viewer List Mode”。

”→ ③“

Feature

”→ ④“

Page down

”→ ⑤“

Page down

”

When“Files Viewer List Mode”option turns red，it means that the
machine has opened the file browsing mode.

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Step 5

②

①

Choose from the touch screen homepage“Print
when selecting the slice file saved in the TF card, users will see the
interface of the print file has been changed. The outputted sliced files will
display thumbnail icons, while without outputted sliced files will not
display thumbnail icons. Users could select the slice file they want to print
at a glance.

”→“

TFT SD”，and

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7-5 Marlin Operating System

BIQU-B1 has also equipped with a retro-style Marlin operating
system, users can choose their favorite operating system according to
their own preferences. Below is a brief description of the system.

Step 1 Long press the knob next to the touch screen, select "Marlin

Mode" on the left, then Marlin operating system will appear on the touch
screen.

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Step 2 Short press the knob, it will skip to the operation interface of

①

②

③
④

①(as shown below) And when the user turns the knob clockwise, the

option will move page down. Moving option to ② “Print from Media”,
then short pressing the knob, it will skip to the operation interface of ③

(as shown below).Moving down option to the file to be printed ④
and short pressing the knob.

Note: In the Marlin system, turn the knob clockwise, the option will move
down. Turn the knob counterclockwise and the selection will move up.

The printer nozzle and hot bed start to heat. After warming to the
target temperature, the machine will automatically reset to zero and then
start printing.

After printing is completed, the print head and hot bed will
automatically cool down. When the temperature of nozzle and hot bed
reach indoor temperature, users then can remove the model.

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8. Troubleshooting

Question 1

layershifting

Answer 1

Printing too fast, please control the speed between 60 ~
80mm /s.

The bell pully or bell might be loosened. Tighten them
up.

The stepper motor is missing steps. The current through
the motor might be too small so that the stepper motor
doesn’t have enough torque. Increase the output
voltage from the stepper driver to increase the power of
the stepper motor.

The stepper, stepper driver and the power supply might
be overheated. Overheating might affect the
performance of steppers.

Question 2

Filament leak

Answer 2

The nozzle is not tightened. Heat up the nozzle
and remove the filament before
tightening the nozzle with a plier. Do not touch
the heated nozzle with your hand!

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Question 3

Difficult to install filament

Answer 3

Straighten the end of the filament with your
hand, and cut the very end of the
filament to a 45 degrees angle with plier.

The screw on the extruder is too tight, slightly
loosen it.

Filament jam in the white filament tube, heat up
to 230 degree and remove the
jam filament.

Question 4

Printting edge warping

Answer 4

The nozzle is far away from the platform, adjust the
distance between the platform and the nozzle-head.

Insufficient cooling is possible, make sure the fan
is working.

Providing a closed environment in order to keep the
temperature stable.

Reducing the printing speed and allowing enough time
to adjust the temperature change.

The line width of the first layer is widened, that is, to
increase the extrusion amount of the bottom layer.

Adding Brim support.

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Question 5

Bobbling on the top of the print

Answer 5

Insufficient cooling is possible, make sure the fan
is working.

Top layer height is too thin, increase top layer
height in your print setting.

Question 6

Cracks and Gaps in 3D prints

Answer 6

Insufficient extrusion. Double check and see if
there are any loosen parts in your
printer.

Make sure the diameter of your filament is
consistent.

Add some machine/motor oil on the rail to
ensure the print bed and extruder can
slide smoothly.

Question 7

During the printing process, the extruder emits

the abnormal sound of "Kakaka"

Answer 7

Might be a nozzle jam, you could use needle tools to
unblock。

The quality of the printed materials is not high, you can
try another material.

The print head temperature is too high, and the
material is carbonized into small black particles. Try to
lower the printing temperature.

The torque of the feeding part needs to be adjusted.

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Question 8

Inconsistent extrusion

Answer 8

Check and see if the filament is jammed.

Check and see if there is a nozzle jam.

Double check if you are using the correct layer height
and filament size setting.

You might be using low quality filament that would
often break.

Question 9

Stringing

Answer 9

Adjust the retraction setting by 1mm each time
and compare the result.

Change the retraction distance and retraction
speed.Generally, the better range of the retraction

effect is 20 ~ 100mm / s. If you want to set the most
ideal value, you need to experiment to control
different speeds to see if the amount of wire is
reduced.

Try lowering the print temperature by 5 degrees
each time.

Lower the travel distance. Lower the distance
between each model if you are
printing multiple models a time.

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9. Cautions

1. To prevent scalds, please don’t touch the nozzle or the heated bed
when the printer is printing.

2. Please don’t touch the magnet bed immediately after a print is done,

wait for the hot plate to cool down before taking the print out.

3. Place the printer on top of a rigid body, otherwise, print quality might

be affected.

4. Don’t place your hand inside the printer, avoid getting slam or pinch

by the printer.

5. Don’t use the printer over 100 hours continuously, otherwise, the

machine might overheat and cause damage.

6. For safety, people under 18 must be supervised by adult when using

the printer.

7. Don’t place the printer near flammable substance. Place your printer

at a ventilated, clean and cool environment.

8. Follow the user manual carefully. Disassemble or modify your printer

without permission might cause damage to your printer, and the user will
be responsible for all the causes.