AnyCubic Prusa i3 User manual

Assembly tips:
To assemble the printer efficiently, it is suggested to put all parts on a flat surface (i.e. a table).
You may tear off the kraft from the acrylic sheets before get started.
Avoid tightening the screws excessively, otherwise the acrylic sheets may be broken.
This manual takes the black acrylic sheets for example, if you have chosen the transparent ones, the
assembly and setup are the same.
The firmware has been pre-uploaded to the ANYCUBIC board, you only have to level the print
platform and start printing right after the assembly.
We may not notice the upgrade for the printer.
If you have any questions or suggestion, please contact us on [e-mail] or
[e-mail]
This document is made and owned by Shenzhen ANYCUBIC Technology Co., Ltd.
Without permission, reproduction, adaption or translation is not allowed, and
offenders will be investigated for legal liability.

List
■Mechanical assembly...............................................................................................1
1. Longmen Frame..................................................................................................1
2. Main framework.................................................................................................3
2.1 Front and back plate...................................................................................3
2.2 Right side and left side plate......................................................................5
2.3 Smooth rods ...............................................................................................7
2.4 Y axis motor................................................................................................9
2.5 Y axis idler wheel......................................................................................11
2.6 Y axis belt..................................................................................................13
3. Print platform...................................................................................................14
4. Z axis motor......................................................................................................17
5. X axis.................................................................................................................19
5.1 X axis motor (left side) .............................................................................19
5.2 Smooth rods (right side)...........................................................................20
5.3 Extruder....................................................................................................21
5.4 X/Z smooth rods.......................................................................................24
5.5 X axis belt .................................................................................................26
6. Power supply....................................................................................................28
7. LCD..................................................................................................................31
8. Limit switches.................................................................................................33
9. Wiring of mainboard......................................................................................35
■Setup/Print...........................................................................................................42
1. Communication Driver .....................................................................................42
2. How to use slicing software and print .............................................................42
2. Leveling...........................................................................................................44
FAQ .............................................................................................................................45

1
■Mechanical assembly
1. Longmen Frame
Parts list
Items
No.
Quantity
Images
Longmen frame
PA01
1
Cooling fan
PB48
1
Z motor mounting plate
PA11
2
Z motor support plate
PA10
4
M3*16 Allan screws
PB16
10
M3 square nuts
PB27
10
M3*25 Allan screws
PB19
3
M3 Hexagon nut
PB26
3

2
Preview:
①Fixing the cooling fan (PB48) to the BACK of Longmen frame (PA01) with 3 pairs of M3×25 (PB19)
screws and M3 (PB26) hexagon nuts. The side with the fan label faces OUTSIDE.
②Use M3×16 Allan screws (PB16) and M3 square nut (PB27) to fix the Z motor support plates
(PA10) onto Z motor mounting plate (PA11). They are mirror symmetrical.
③Insert those two parts to the corresponding place on Longmen frame, and fix them with M3x16
Allan screws and M3square nuts.
Left
Front
Right

3
2. Main framework
2.1 Front and back plate
Parts list
Items
No.
Quantity
Images
M10 screw rod
PB01
2
M10 washer
PB31
12
M10 spring washer
PB32
6
M10 hexagon nut
PB30
12
Front plate
PA02
1
Back plate
PA06
1

4
Preview:
①Put two screw rods M10 (PB01) through the round holes at bottom of the Longmen frame.
②Sequentially put M10 washer (PB31), M10 spring washer (PB32), M10 nut (PB30), M10 nut
(PB30), M10 spring washer (PB32) and M10 washer (PB31) on the screw rod.
③At the other side of the screw rod, sequentially put on M10 washer, M10 nut, M10 nut, M10
spring washer, M10 washer. Do the same to another screw rod.
④Put front plate (PA02) and back plate (PA06) on the screw rods, using M10 washer, M10 nuts.

5
Tips:
>Do not tighten the nuts until next step. You may need to adjust the position.
>Make sure the endstop is located in the back-left.
2.2 Right side and left side plate
Parts list
Items
No.
Quantity
Images
Right side plate
PB07
1
Left side plate
PB06
1
M3*16 Allan screw
PB16
8
M3 square nut
PB27
8

6
Preview:
Install right and left side plates onto Longmen frame and back plate, with M3x16 Allan screw (PB16)
and M3 square nut (PB27).
Tips:
>It is essential to have a rigid structure for good prints later. Make sure the longmen frame,
front, back, right and left side plates are vertical to the table.
>You may now install the power supply (PC01) and the connector for power (PC02) to the right
side plate (PB07) in advance, which will be interpreted later.

7
2.3 Smooth rods
Parts list
Items
No.
Quantity
Images
φ8 smooth rods (Y axis)
PB02
2
SCS8UU linear bearing
PB34
4
Stopper
PA12
4
M3*20 Allan screw
PB18
4
M3 hexagon nut
PB26
4
Preview:
①Fix two stoppers (PA12) onto back plate, using two M3x20 (PB18) screws and M3 hexagon nuts
(PB26). The stoppers are used to block the smooth rod.

8
②Insert two smooth rods (PB02) respectively from the front plate, then put two linear bearings
SCS8UU (PB34) on each of the smooth rods before they reach into the back plate. Then fix two
smooth rod stops on front plate to block the smooth rods.
③Tighten all the M10 nuts, and make sure the stoppers just block the smooth rods on the
front/back plates. And those plates are vertical to the table surface.
Tips:
Do not over tight the M10 nut which will let the Longmen framework out of shape.

9
2.4 Y axis motor
Parts list
Items
No.
Quantity
Images
Motor
PC03
1
Y motor mounting plate
PA14
1
Y motor support plate
PA15
1
M3*12 Allan screw
PB15
4
M3*20 Allan screw
PB18
2
GT2 synchronizing wheel
PB36
1
Y motor cable
PC05
1
M3 square nut
PB27
2

10
Preview:
①Fix the synchronizing wheel (PB36) on the motor, and tighten the screws on the wheel, one of
the screws MUST face against the plane on motor shaft.
②Fix the motor onto the mounting plate (PA14) using four M3*12 Allan screw (PB15), and plug in
motor cable (PC05).
③Install the motor with mounting plate and support to the middle of back plate, and fix them
with 2 pairs of M3x20 Allan screws and M3 square nuts.

11
2.5 Y axis idler wheel
Parts list
Items
No.
Quantity
Images
Idler wheel support plate
PA16
2
M3 hexagon nut
PB26
3
M3×35 Phillips screw
PB20
1
M3×20 Allan screw
PB18
4
M3 Square nut
PB27
4
H type idler wheel
PB37
1

12
Preview:
①Hold the M3×35 screw (PB20), then sequentially put through idler wheel plate (PA16), M3 hex nut
(PB 26), idler wheel (PB 37), M3 hex nut again, another idler wheel plate and M3 hex nut. Tight the M3
nut but make sure idler wheel rotating smoothly.
②Fix the idler wheel set to the front plate using 4 pairs of M3x20 screws M3square nuts.

13
2.6 Y axis belt
Parts list
Items
No.
Quantity
Images
Belt
PB10
1
Belt tensioner
PC16
1
Belt tension spring
PB11
1
Cable tie
PB08
4
Preview:
①Pass one end of belt (PB10) through the belt tensioner (PC16), and fix it with cable ties (PB08),
then lead the other end go through idler wheel and synchronizing wheel of Y-axis motor, and then
fix it with cable ties and cut off the redundant belt.

14
②If the belt is loose, we can tighten it using the tensioner spring (PB11). Move the belt tensioner
just above the bottom of longmen frame, and install the spring as shown in the image.
Tips:
>You may loose the Y axis motor mounting plate or the idler wheel plates beforehand, and
tighten them again after belt is installed.
>In order to get good prints, there should be a little tension on the belt.
>One side of the belt has teeth and this side should face the teeth of synchronizing wheel.
3. Print platform
Parts list
Items
No.
Quantity
Images
Heat bed
PA09
1
M3×40 Phillips screw
PB21
4
M3×16 Allan screw
PB16
2

15
M3 adjustable round nut
PB28
4
M3 hexagon nut
PB26
4
Aluminum sheet
PA07
1
Platform support plate
PA08
1
M4×10 button head screw
PB25
16
Spring (Φ0.8mm)
PB22
4
M3 self-locking nut
PB29
2
Preview: (heat bad cable goes toward the rear)
①Fix Platform support plate (PA08) to 4 linear bearings (PB34) with M4x10 button head screw.

16
②Fix Y axis belt tensioner to platform support plate with two pairs of M3x16 Allan screw (PB16)
and M3 self-locking nut (PB29), and must screw down them.
③Put the aluminum sheet (PA07) on the top of heat bed (PA09), turn them around and then fix
them with 4 pairs of M3x40 Phillips screws (PB21) and M3 hex nuts (PB26). Paying attention to
the direction.
④Install 4 springs (0.8mm) (PB22) on the M3x40 Phillips screws, and mount the whole piece onto
the platform support plate and fix them with M3 adjustable round nut.

17
Tips:
>When fixing the belt tensioner to the platform plate, you may lie the machine down on the
side for easy installation.
>Manually move the platform forth and back to check if the belt is wobbly. If it does, you may
adjust the synchronizing wheel or belt tensioner until it goes straight.
4. Z axis motor
Parts list
Items
No.
Quantity
Images
Screw rod motor
PC06
2
Z motor cable (Left)
PC10
1
Z motor cable (Right)
PC11
1
M3×12 Allan screw
PB15
8