Kuongshun Eletronics Prusa i3 User manual

Prusa i3 Improved Version
Use and Maintenance
manual

kuongshun eletronics company limited
1. Overview
Prusa i3 is a new generation of Reprap series printer.It is designed by Prusajr
core team the latest 3 d printer. it reference and draw lessons from the first two
generation of Prusa and others.Relative to the Prusa i2 are improved below :
Framework to become more strong (avoid recoil on the x axis)
It is easier to assemble
picture 1 Prusa i3
2. The basic parameters
Print size：200mm＊200mm＊180mm
Use consumables：ABS/PLA 3mm/1.75mm
The nozzle diameter：0.4mm
Control panel：Ramps1.4
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Hot bed：MK3
Control software: Repetier - Host or Printrun
The machine size: 430 mm * 500 mm * 380 mm
2. Packinglist of material
（1）Polished rod screw
table 1 screw list of polished rod
no name qty
1
M8*320mm
2
2
Polished
rod
M8*405mm
2
3
M8*384mm
2
4 M8*430mm
2
5
screw
rod
M8*209mm
3
6 M8*275mm
1
7 M5*305mm
2
（2）Frame plate
table 2 list of Frame plate
No name qty
1
main frame plate
1
2
triangle support plate
2
3
top support plate
2
4 The Z axis motor fixed plate
2
5
Z axis motor triangle plate
4
6
X type hot bed support plate
1
7
Z axis platen
2
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The hot support plate
x type hot bed support plate
the main frame plate
2
X aixs passive
seat
1
3
3
A motor fixing
plate
Z aixs
platen
Picture 2 frame plate
component diagram
A triangle
support plate
The Z axis delta
Motor guard
A triangle support plate
（3）Print
NO Name NUM REMARK
1
Xaixs
motor seat
1
X shaft
bracket
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4X axis Angle Y axis
Framework 4
Y-axis motor mount 1
5
6 Y passive wheel seat 1
7Y axis synchronous
arrange ushering 1
8 The Y axis
synchronous 2
belt clamp
9 Y linear bearing
10 Limit switch seat 3
11 Extruder Block 1
12
Extruder big gear 1
13 Extruder pinion 1

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14
The screw extruder 1
extrusion wheel
15
Extruder HotEnd 1
stents
（4）Electronic devices
（5） transmission part
t
no name qty remark
1.
LM8UU Linear bearing
10
2.
MF1045 bearing
4
3.
608ZZ bearing
3
4.
coupling
2
5.
synchronous pulley
2
6.
Synchronous belt
2
meter
（6） The screw nut etc.
Table 6 nut screw list
no name qty remark
1. screw M3*7 1
2. M2*20 6
3. M3*10 25
4. M3*16 37
5. M3*20 12
6. M3*25 8
7. M3*30 1
8. M3*50 4
9. M 5*20 2
Table 4 Electronic devices list
no name qty remark
1. Ramps1.4 1
2.
Maincontrol
board
Mega2560 1
3. A4988 driver motor 4
4. 42 series motor stepper motor 5
5.
Hot bed
1
6.
Limit switch
3
7.
Extrusion head
1
8.
Switching power supply
1

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10.
set
1
11. M3
square nut
20
12. M3
Hexagonal nut
35
13. M5
Hexagonal nut
4
14.
nut
M8
Hexagonal nut
38
15. M2
Hexagonal nut
6
16. M3
Hexagon antiskid
4
17. M8
Non-slip nut
1
18. M3
gasket
63
19. M2 6
20.
gasket
M5 4
21. M8
gasket
40
22. M8
big gasket
4
23.
spring
6Hot bed with four, extruder with 2
24.
Power 220 v input
line 1
25.
others
12 v power supply
output line 4
Black red each two pcs
26.
Winding belt
1
meter
27.
USB cable 1pc
28.
The hinge shaft
1
4. Installation instructions
4.1 The tools required
Table 7 May need to be in the process of installation tools
no name qty remark
1.
M8 wrench
2
2.
Long nose pliers
1
3.
M2 socket head wrench
1
Synchronous belt wheel a few
meters installed
4.
M3 socket head wrench
1
Coupling a few meters installed
5.
cross screwdriver
2
One General specification
screwdriver and a small
specification screwdriver
6.
straight screwdriver
1
small specification screwdriver
7. Soldering iron 1
8.
Solder wire
1
9. Hand electric drill 1
Due to the print not special
accurate,some Holes may be
small size
you may need a hand electric
drill to
expand it
10. Heat gun 1
11.
Insulating tape
1

12. Heat shrinkable tube 1
13. Rubber mallet 1
You may need to hit into the shaft
bearings with some force into
the bearing hole
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4.2 installation
4.2.1 Install the frame plate and the triangular
support backside
（1） The required material
The main frame plate X1
Triangle back board X2
M3 Square nut X6
M3*16 screw X6
M3 gasket X6
（2） Installation steps
In the triangle frame board rectangular slot into M3
square nut
With 16 M3 * and M3 screw washer fixed main frame
plate and support the back
4.2.2 Install the motor and motor protector

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（1） The required material
The motor seat X1
Motor triangle plate X2
M3 Square nut X2
M3*16 screw X2
M3 The gasket X2；
（2）Installation step
According to the triangle icon will motor protection plate side
lobes inserted into the groove of the motor seat on both sides；
In the groove of the triangle plate into M3 square nut
with M3 screws and washers motor and motor triangle plate
4.2.3 Fixed main frame plate and motor
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（1） The required material：
M3 Square nut X3
M3X16 screw X3
M3 The gasket X3
（2） Installation steps：
According to graphic motor mount and triangle plate bumps
into the groove of the surface should be tucked into the
frame
In the motor and the groove of the triangle plate into M3
square nut
With the M3 screws and washers, the triangle plate and the
main frame plate
4.2.4 bottom of the supporting platform installation
4.2.4.1 step 1: install the Y axis motor

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（1） The required material：
M8*209mm Screw x1
M8*275mm Screw x1
XY Shaft frame Angle of printouts x2
Y Axis motor block print x1
M8 nut x12
M8 gasket x12
（2） Installation steps：
Connection as shown, Y axis frame Angle, Y axis motor block print a
printout, screw and nut gasket
Remark：（1）Y motor seat motor parts for internal installation (internal is
relative to the support platform of the whole
Body, as shown in below)
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（2）All tighten nut does not use temporarily
Step 2: install Y driven wheel
Y passive wheel installation
Y passive wheel installation
details

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（1） The required material
M8*209mm screw X2
XY Frame Angle printouts X2
Y passive wheel seat X1
M8 nut X10
M8 gasket X10
M5 screw X2
M5 nut X2
MF105zz Ball bearing x2
M5 gasket x1（maybe need it ）
（2） Installation steps
As shown above, passive wheel assembly (materials needed two
MF105zz ball bearing, a screw, a M5 nut M5 and a M5 gasket (might
need, if feel passive wheel seat open mouth space into two MF105zz
bearings after two side still have space, MF105zz bearing in operation
in the process of moving about possible cheap, can be in one side
into the M5 washers
According to above picture shows the M8 screw assembly, XY axis
frame Angle, Y driven wheel and nut washers.
Remark：Passive wheel installation may dues work here, please keep patient
4.2.4.3 Step 3: prepare the bottom screw polished rod support platform
Y polished rod bearing preparation

（1） The required material
M8*405 Polished rod X2
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Support platform for the screw at the bottom of the polished rod preparation
M8*430mm screw X2
LM8UU Linear bearing X3
Y linear bearingX3
M8 nutx8
M8 gasketx8
（2）Installation
steps
According to above picture linear bearings into the Y-axis linear
bearing
Ready as shown in above Y axis screw polished rod support at the
bottom of the platform.
Remark:
（1）Y linear bearing will be a little tight, may need to use rubber
hammer here will bearing to knock into the hole；
（2）In the process of the polished rod inserted into the linear bearing is
likely to cause bearing part of the steel ball falls off, this is
Normal phenomenon, as following.
4.2.4.4 Step four: assemble support at the bottom of the platform