Geeetech Prusa I3 M201 Instruction Manual

Building Instructions of Geeetech Prusa I3 M201
(Version 04-11-2016)

CONTENT
Safety Instructions.....................................................................................................................1
Preparation................................................................................................................................2
1. Assemble the threaded rods ofY axis ...................................................................................3
2. Assemble the front and back support of y axis......................................................................3
3. Thread the smooth rods and linear bearings..........................................................................5
4. Mount theY motor................................................................................................................6
5. Y belt driving wheel..............................................................................................................9
6. Build the print platform.......................................................................................................14
7. Mount theY belt..................................................................................................................16
8. 1 Right Z motor mount........................................................................................................18
8. 2 Left Z motor mount..........................................................................................................20
9. Side panel assembly............................................................................................................22
10. Main frame assembly........................................................................................................23
11. Fan mount..........................................................................................................................25
12. Mount the Z endstop.........................................................................................................26
13. Mount the Z motors...........................................................................................................27
14. Mount the couplings..........................................................................................................29
15. Mount the building platform.............................................................................................31
16. Assemble the left end of the X axis（motor end).............................................................32
17. Assemble the right end of the X axis. (X idler end)..........................................................38
18. Assembly of the extruder carriage.....................................................................................40
19. Assemble the the X&Z axis ..............................................................................................45
20. Assemble the Z axis top mount.........................................................................................48
21. X belt driving wheel..........................................................................................................49
22. Add the belt.......................................................................................................................53
23. Mount the hotend..............................................................................................................55
24. Mount the extruders..........................................................................................................57
25. Mount the LCD panel .......................................................................................................58
26. Mount the control board....................................................................................................59
27. Mount the power supply unit(PSU ) and the socket..........................................................60
28. Mount theY endstop.........................................................................................................65
29. Wiring ...............................................................................................................................66
30. 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. Some printed parts may need more filing than others to ensure a secure fit when
screwing together.
Please do not over file a part, it is best to remove a small amount of excess plastic and
test the fit then re-file as necessary. No excessive forces should be required to bring
parts together.
6. Ensure you have the necessary skills to carry out the work, or enlist the help of
someone who does.
7. Work on a big firm table or bench in a clean dry well-lit area.
8. This kit contains tiny parts; please keep them away from kids under 3.
9. 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.

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1. Assemble the threaded rods of Y axis
Part name
Part ID
Required number
pic
450 mm 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.
Watch the Video here.
2. Assemble the front and back support of y axis.

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Thread the plate to both end of the threaded rod in the following order:2
Front outside support plate: No.A9
Front inside support plate: No.A10
Rear outside support plate: No.A12
Rear inside support plate: No.A11
Screw up the threaded rods and support plates with M10 nut and M10 washer at both
end. Hand tighten the M10 Nuts against the M10 Washers. Try to keep the rods
parallel and the four acrylic pieces parallel.
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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* 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 watch the video here.
3. Thread the smooth rods and linear bearings.
Part name
Part ID
Required number
pic
PCS8UU Linear
Bearing
No.39
4
420mm Smooth
rod
No.3
2
locking ring
No.37
2

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* Photos with PCS8UU linear bearings in this instruction is the previous version,here
we use PCS8UU instead. Picture is just for reference. The assembly is the same.
PCS8UU linear bearings is a modified version of SCS8UU linear bearings, the block
is made of high strength ABS, which is lighter and more flexible.
Why we changed the SCS8UU linear bearings into the PCS8UU ?
To lighten the loads of the building platform and reduce the drag of Y axis so that the
building platform can move more flexible therefore increase the precision of printing.
Thread the smooth rod into the Y axis support plate from rear to front, and thread the
locking ring and 2 PCS8UU Linear Bearing on the smooth rod in turn.
(*SCS8UU in the picture are just for reference, you are using the PCS8UU linear
bearings )
Screw up the locking ring.
Watch the Video here.
4. Mount the Y motor
Part name
Part ID
Required number
pic

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stepper motor
No.65
1
Y motor holder
No.A13
1
M3 x12mm screw
No.25
3
M3 x 20mm screw
No.27
2
M3 washer
No.7
5
M3 square nut
No.17
2
Pulley
No.45
1
Note: In some picture, the pulley is a bit different but it won’t affect your assembly.
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 Y motor holder with 3 M3 x 12 screws and M3
washers.

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Step 3. Push the Y Motor holder tab into the square hole in Rear -Outside Plate and
Rear - Inside Plate. You may need to use a little force, but be careful not to break or
crack any of the Acrylic pieces. Secure the Y Motor holder with 2 M3x20 mm
Screws , 2 M3 Washers and 2 M3 Square Nuts.
(*SCS8UU in the picture are just for reference, you are using the PCS8UU linear
bearings )
You can watch the video here.
5. Y belt driving wheel
Part name
Part ID
Required number
pic
Driven wheel
holder
No.42
1

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Driven wheel
No.43
1
R84zz Ball Bearing
No.44
2
M3 x20mm screw
No.27
1
M4 x 25mm screw
No.35
1
M3 washer
No.7
1
M4 washer
No.8
1
M4 lock nut
No.14
1
wing nut
No.15
1
Step1. Thread the M3 x 20 screw and M3 washer through the Driven wheel 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.
Step4. Mount the assembled bearing holder onto the front support plates. And screw it
with a wing nut.

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(*SCS8UU in the picture are just for reference, you are using the PCS8UU linear
bearings )
Look at this picture, the driving wheel and the pulley should be in a straight line.
You can refer to the video here.
6. Build the print platform
Part name
Part ID
Required number
pic
Building platform
support
No.A15
1
Belt mount
No.38
1
M3 x12mm screw
No.25
2
M4 x 16mm screw
No.34
16
M3 washer
No.7
2
M4 washer
No.8
16
Hex Nut
No.12A
16
Step1. Mount the belt mount at the middle of the building platform support with 2 M3
x12mm screws and M3 washers.

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Step2. Mount the the building platform support on the 4 PCS8UU linear bearings on
the rod with M4x16mm screws and M4 nut.

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(*SCS8UU in the picture are just for reference, you are using the PCS8UU linear
bearings )
* 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.
7. Mount the Y belt
Part name
Part ID
Required number
pic
Timing belt
No.46
1
M3 x8mm screw
No.23
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 driving wheel.
Step4. Taut the belt to determine the length of the belt, punch another hole and and fix
the other end of the belt mount with a M3 x 8 screw and washer.
Step5. Cut off the rest of the belt

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(*SCS8UU in the picture are just for reference, you are using the PCS8UU linear
bearings )
*Tips:
1. Before you drill your second hole, make sure to pull belt tightly to find
the proper placement of hole for a tight belt, if it is too loose, it will hinder the move
of the print platform.
2. Loosen the Y idler wing nut when tightening belt onto the Y belt mount in order to
make securing the belt to the block easier. Be sure to tighten wing nut fully
once done.
3. The belt should be vertical with the Y axis support plate.
Watch the video here.
8. 1 Right Z motor mount
Part name
Part ID
Required number
pic