Geeetech Prusa I3 X Instruction Manual

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GEEETECH
Building Instructions of Geeetech Prusa I3 X

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CONTENT
CONTENT.......................................................................................................................................... 2
Safety Instructions.......................................................................................................................3
Preparation...................................................................................................................................4
Unfold the box and check the package list................................................................................. 5
1. Assemble the threaded rods of Y axis..................................................................................... 6
2. Assemble the front and back support of y axis....................................................................... 7
3. Mount the Y motor.................................................................................................................. 8
4. Y belt driving wheel.............................................................................................................. 10
5. Build the print platform.........................................................................................................16
6. Mount the Y belt....................................................................................................................17
7. Left Z motor mount...............................................................................................................18
8. Right Z motor mount.............................................................................................................19
9. Two Z motor mount assembled to the main frame(A1)........................................................20
10. Side panel assembly............................................................................................................ 21
11. Main frame assembly.......................................................................................................... 22
12. Fan mount............................................................................................................................22
13. Assemble the left end of the X axis（motor end)...............................................................23
14. Assemble the right end of the X axis. (X idler).................................................................. 32
15. Assemble the X and Z motors.............................................................................................38
16. Assembly of the single extruder carriage............................................................................40
17. X belt driving wheel............................................................................................................43
18. Assemble the the X axis together and add the belt.............................................................48
19. Assemble the X axis on the printer..................................................................................... 52
20. Connect the other end of the X axis belt.............................................................................54
21. Mount the building platform...............................................................................................55
23. Mount the LCD panel..........................................................................................................55
24. Mount the power supply unit(PSU ) and the socket...........................................................57
25. Mount the control board......................................................................................................58
26. Wiring..................................................................................................................................59
Step1. Check the ubdivision of stepper motor..................................................................60
Step2. Plug stepper motor driver...................................................................................... 62
Step3. Connect wires for motors.......................................................................................64
Step4. Connect heating wires............................................................................................67
Step5. Connect wires for thermistor..................................................................................70
Step6. Connect wires for endstop. * There is no “+” and “-“ polarity for endstop...73
Step7. Connect wires for Fan............................................................................................75
Step8. Connect wires for LCD panel................................................................................ 77
Step9. Connect wires for power input.............................................................................. 78
Step 10. Connect the wires to the PSU............................................................................. 79
27. Mount the filament spool............................................................................................................ 79

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Safety Instructions
Building the printer will require a certain amount of physical dexterity, common sense
and a thorough understanding of what you are doing. We have provided this detailed
instruction to help you assemble it easily.
However ultimately we cannot be responsible for your health and safety whilst
building or operating the printer, with that in mind be sure you are confident with
what you are doing prior to commencing with building or buying. Read the entire
manual to enable you to make an informed decision.
Building and operating involves electricity, so all necessary precautions should be
taken and adhered to, the printer runs on 12V supplied by a certified power supply, so
you shouldn’t ever have to get involved with anything over 12V but bear in mind
there can still be high currents involved and even at 12V they shouldn’t be taken
lightly.
High temperatures are involved with 3D Printing, the Extrusion nozzle of the hot end
can run about 230°C, the heated bed runs 110°C and the molten plastic extruded will
initially be at around 200°C, so special care and attention should be made when
handling these parts of the printer during operation.
We wouldn’t recommend leaving your printer running unattended, or at least until you
are confident to do so. We cannot be held responsible for any loss, damage, threat,
hurt or other negligent result from either building or using the printer.

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Preparation
1. Unpack the kit and check if all parts are in the box and check the condition of each
part, there might be some damage during shipping. To help you with this, there is
BOM in the box and each bag was labeled with part number.
2. Contact our customer service immediately by email or through the website if you
find any missing or damaged parts. And on the bottom of the BOM, there is a
signature of reviewer, please take a picture of it and attach the picture in your mail.
3. Read through each chapter of these instructions to gain an over-all idea of
what is involved and how long it might take, before starting on the work
described. Or you can watch the video here.
4. Before you start, you can put all the part in order to save your time especially those
screws and nuts. Do not mix them up.
5. Ensure you have the necessary skills to carry out the work, or enlist the help of
someone who does.
6. Work on a big firm table or bench in a clean dry well-lit area.
7. This kit contains tiny parts; please keep them away from kids under 3.
8. Ask for help if you run into any problems - our contact details are on the website
and we will always do our best to resolve any problems encountered.
9. If you find any problem about the videos, such the part number is wrong, please refer to this
instruction, videos are just for reference, we may do some tiny changes.

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Unfold the box and check the package list
Unfold the package and take all the parts out to check the condition of the items.
* All the acrylic plate has been etched with part ID and the plate is covered with a
sheet of kraft paper, you need to tear them off.
* The part ID is corresponding to the number labeled on the bag of every part. Some
parts may not have label, you can refer to the pictures on the package list.

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1. Assemble the threaded rods of Y axis
Part name
Part ID
Required number
pic
450mm threaded rod
No.5
2
M10 washer
No.9
8
M10 hex nut
No.13
8
M10 spring washer
No.10
6
Connecting fender
No.A14
2
Thread the nuts and washers into the two M10 threaded rods separately. The order
should be:
1) Thread the acrylic fender (Y plate connecting plate) in the middle.
2) Thread the M10 washer>M10 nut >M10 nut >
M10 nut <M10 nut < M8 spring washer<M10 washer in turn on the left
3) Thread theM10 washer < M8 spring washer < M10 nut < M10 nut< M8 spring
washer < M10 washer in turn on the right

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Watch the Video here.
2. Assemble the front and back support of y axis.

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Thread the rod to the plate, screw up the threaded rods and plate with M10 nut and
M10 washer at both end.
You don’t have to tighten it because you need to adjust the distance between the front
and rear plate later when you assemble the side panel.
* Tips:
the Y-axis must be a rectangle, that is the rods on both side should be parallel, so is
the front and back plate. Otherwise it will cause obstruction for the belt later. You can
use a Digital Caliper to measure.
You can watch the video here.
3. Mount the Y motor
Part name
Part ID
Required number
pic
M10 washer
No.9
4
M10 hex nut
No.13
4
Y axis front support
No.A9
1
Y axis front support
No.A10
1
Y axis rear support
No.A11
1
Y axis rear support
No.A12
1

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Part name
Part ID
Required number
pic
stepper motor
No.63
1
Y motor holder
No.A13
1
M3 x12mm screw
No.22
3
M3 x 16mm screw
No.23
2
M3 square nut
No.16
2
Pulley
No.42
1
Step1. Mount the pulley on the motor shaft, one of the screws should be screwed on
the cross section of the shaft. Screw it tightly.

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Step2. Then screw the motor on the block plate with 3 M3 x 12 screws .
Insert the motor holder into the slot; you may need to use a little strength to do this.
Fix the holder plate with 2 M3 x 16 screws and M3 square nut.
*be careful in case the Acrylic break down.
You can watch the video here.
4. Y belt driving wheel
Part name
Part ID
Required number
pic
Driven wheel
holder
No.40
1
Ball Bearing
No.35
2

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Driving wheel
No.40A
1
M3 x20mm screw
No.24
3
M4 x 25mm screw
No.31
2
M4 locking nut
No.16
2
wing nut
No.42
1
Step1. Thread the M3 x 20mm screw through the bearing holder.

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Step2. Insert the two MR84zz ball bearings into both ends of the driving wheel.

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Step3. Put the M4 x25 screw and M4 washer through the driving wheel. Lock the
other end with a M4 lock nut. You may need a wrench to tighten locking nut.

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*Do not screw it too tight, you should leave enough room for the wheel to turn freely.
Refer to video here.
Step3. Mount the assembled bearing holder onto the front support plates. And screw it
with a wing nut.
*Please leave enough room for the belt between the ball bearing and the screw.

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5. Build the print platform
Part name
Part ID
Required number
pic
Building platform
support
No.A15
1
Belt mount
No.41
1
M4 x 16mm screw
No.30
16
M4 washer
No.8
16

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SCS8UU linear
bearing
No.36
4
M3 x12mm screw
No.22
2
M3 washer
No.7
2
Step1. Mount the belt mount at the middle of the building platform support with two
M3 x12mm screw and M3 washer.
Step2. Mount the 4 SCS8UU linear bearings on the building platform support with
two M4x16mm screw and M4 washer.
* Note the direction of the building platform support, you can judge from the
direction of the belt mount, whose direction is corresponding to the Y axis.
You can refer to the video here.
6. Mount the Y belt
Part name
Part ID
Required number
pic
Timing belt
No.39
1
M3 x8mm screw
No.21
2
M3 washer
No.7
2
Step1. Punch a M2.5 hole on one end of the belt（the hole can be as the diameter of
the M2.5 screw , leave enough margin ）
Step2. Fix the belt on one side of the belt -mount with a M3 x 8 screw and washer.

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Step3. Thread the belt around the pulley on the motor and the ball bearing.
*Tips:
1. Before you drill your second hole, make sure to pull belt tightly to make sure to
proper placement of hole for a tight belt, if it is too loose, it will hinder the move of t
he print platform.
2. Loosen the Y idler wing nut when tightening belt onto the Y belt mount [No. 67] in
order to make securing the belt to the block easier. Be sure to tighten wing nut fully
once done.
Watch the video here.
7. Left Z motor mount
Part name
Part ID
Required number
pic
M2.5 hex nut
No.11
2
M2.5x16mm screw
No.20
2
M3 x 16mm screw
No.23
3
M3 Square nut
No.16
3
end stop
No.52
1
Motor holder (left)
No.A4
1

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Motor Holder
support
No.A6
1
Motor Holder
support
No.A7
1
Z endstop mount
No.A28
1
Step 1. Mount the endstop on the endstop mount with two M2.5 x 16screws and nut.
Step 2. Mount the assembled endstop mount on the A4 with M3 x 16mm screw and
M3 Square nut.
Step 3. Assemble the motor holder (left) and the motor holder support together, screw
it up with 3 M3 x 16mm screw and M3 Square nut.
Watch the video here.
8. Right Z motor mount
Part name
Part ID
Required number
pic
M3 x 16mm screw
No.23
2
M3 Square nut
No.16
2

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Motor holder
(right)
No.A5
1
Motor Holder
support
No.A6
1
Motor Holder
support
No.A7
1
Assemble the motor holder ((right) and the motor holder support together, screw it up
with 3 M3 x 16mm screw and M3 Square nut.
Watch the video here.
9. Two Z motor mount assembled to the main frame(A1)
Part name
Part ID
Required number
pic
M3 x 16mm screw
No.23
6
M3 Square nut
No.16
6
Main frame
No.A1
1