Page 1
Building Instructions of Geeetech Prusa I3 M201
(Version 04-11-2016)
Page 2
CONTENT
Safety Instructions..................................................................................................................... 1
Preparation ................................................................................................................................ 2
1. Assemble the threaded rods of Y axis ................................................................................... 3
2. Assemble the front and back support of y axis. ..................................................................... 3
3. Thread the smooth rods and linear bearings. ......................................................................... 5
4. Mount the Y motor ................................................................................................................ 6
5. Y belt driving wheel .............................................................................................................. 9
6. Build the print platform ....................................................................................................... 14
7. Mount the Y 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 the Y 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
P
CS8UU 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
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M3 x 16mm screw
No.26
5
M3 Square nut
No.17
5
M3 washer
No.7
5
Motor holder
(right)
No.A5 1
Motor Holder
support
No.A6 2
Step1. Assemble the 2 A6 and A5 together, screw up with 3 M3 x 16mm screw ,M3
washer and M3 Square nut .
*Note the direction of the A5,the small round hole is on the right.
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Step2. Fix the assembled motor mount on the right-bottom of A1 with M3 x 16mm
screw, M3 washer and M3 Square nut.
*Be very careful here, if you can not insert it into the hole you can loose the screw on
the motor mount and try again.
Watch the video here.
8. 2 Left Z motor mount
Part name
Part ID
Required number
pic
M3 x 16mm screw
No.26
5
M3 Square nut
No.17
5
M3 washer
No.7
5
Motor holder (left)
No.A4 1
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Motor Holder
support
No.A6 1
Motor Holder
support
No.A7 1
Main frame
No.A1 1
Step 1. Insert the A6 and A7 into A5, note the detail:A7 is on the left and A6 is on the
right. *Note the direction of the A4,the small round hole is on the left.
Step 2. Fix the assembled motor mount on the left-bottom of A1 with M3 x 16mm
screw, M3 and square nut.
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*Be very careful here, if you can not insert them into the hole you can loose the
screw on the motor mount and try again.
Watch the video here.
9. Side panel assembly
Part name
Part ID
Required number
pic
M3 x 16mm screw
No.26
6
M3 Square nut
No.17
6
M3 washer
No.7
6
Side panel(left)
No.A2 1
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Side panel(right)
No.A3 1
Fix the side panels on A1 with M3 x 16mm screw, M3 Square nut and M3 washer.
Watch the video here.
If the tab doesn’t fit the hole, there must be some manufacturing faulty, please use
the file to trim it.
10. Main frame assembly
Part name
Part ID
Required number
pic
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M3 x 16mm screw
No.26
2
M3 x 20mm screw
No. 27
4
M3 hex nut
No.12
4
M3 square nut
No.17
2
M3 washer
No.7
6
Step 1. Put the assembled Y axis into the main frame, put the main frame between the
connecting fender and the M10 nut. The Connecting fender is at the front part of the Y
axis.
Step 2. Connect the side panel to the rear support plate, screw it up with M3 x 16mm
screw,M3 washer and M3 square nut.
Step 3. Fix the connecting fender to A1 with M3 x 20mm screw, M3 washer and M3
hex nut.
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Watch video here.
11. Fan mount
Part name
Part ID
Required number
pic
M3 x 25mm screw
No. 28
4
M3 hex nut
No. 12
4
M3 washer
No.7
6
Fan
No.51
1
Mount the fan on the BACK of the left side of the A1. Fix it with 4 M3 x 25 mm
screw, M3 washer and 4 M3 hex nut.
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Note the direction of the fan, the side with wires is at outside. The fan is for the heat
dissipation of the control board. You can see from the video.
Watch the video here.
12. Mount the Z endstop
Part name
Part ID
Required number
pic
M2.5 x 16mm
screw
No. 21
2
M2.5 hex nut
No. 11
2
\
End stop
No.54
1
Mount the endstop on the outside of A7 with M2.5 x 16mm screw and M2.5 hex nut
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Watch video here.
13. Mount the Z motors
Part name
Part ID
Required number
pic
stepper motor
No.65
2
M3 x12mm screw
No.25
8
M3 washer
No.7
6
Step1.Thread the wires of the motor through the holes on the bottom of A1.
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Step2.Screw up the motors on A5 with 4 M3 x 12 screws and M3 washers.
Mount the other Z motor on A4 in the same way.
For detailed assembly process, please watch here.
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14. Mount the couplings
Part name
Part ID
Required number
pic
Coupling
No.48
2
Step 1. Fix the two couplings on the Z motor shaft separately.
Please note:
1. The opening of both end, one is 5mm, another is 8mm, connect the 5mm hole to the
motor shaft.Half and half. Screw it tightly.
2. The screw should be fixed on the cross section (the flat side) of the motor shaft.
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Repeat the steps for another couplings.
* the bottom of the coupling is better to be leveled with No. A4.
Watch video here.
15. Mount the building platform.
Part name
Part ID
Required number
pic
Thermometry &
Heating wire
No.58
1
Heatbed set
No.59
1
Building platform
No.60
1
wing nut
No.15
4
M3x30 mm Hex
Counter-
sunk-head screw
No.19
4
Spring
No.36
4
Step 1.Stack the heatbed and the aluminum plate together with he aluminum plate
above, the heat bed below.
Step 2.Connect the heatbed and the aluminum plate to the acrylic plate with 4 Hex
Counter-sunk-head screw with the spring in between.
Step 3. Lock the screw with a wing nut .
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For detailed video tutorial, please watch here.
16. Assemble the left end of the X axis（motor end)
For the whole process of assembly of this part, please refer here.
16. 1. Mount the Z-axis nut, linear bearing
Part name
Part ID
Required number
pic
Z-axis nut
No.16
1
X-axis motor end
No.M1
1
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Linear Bearing
LMH8LUU
No. 41
1
M3 x 50 screw
No.31
1
M3 x 6mm screw
No. 22
8
M3 washer
No. 7
2
\
Spring
No. 36
1
Step1. Mount the Z nut on the X-axis left end from bottom to up, fix with M3 x 6mm
screws.
Step2. Mount the linear bearing on X-axis motor end from bottom to up. Fix it up
with M3 x 6mm screws .
16.2 Mount the endstop trigger.
1. Thread a M3 washer> spring> M3 washer in order to the M3x50mm screw.
2. Thread half of the M3x50mm screw into the screw hole.
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16. 3 mount the X motor.
Part name
Part ID
Required number
pic
M3 x 6 mm screw
No. 22
3
Stepper motor
No.65
1
Pulley
No.45
1
Step 1. Mount the pulley on the motor shaft. Screw it on the flat side.
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Step 2.Mount the stepper motor on the motor end with 3 M3 x 6 mm screw.
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16.4 Mount the endstop
Part name
Part ID
Required number
pic
M2.5 x 8 mm
screw
No. 20
2
End stop
No.54
1
Mount the endstop on the top of X-axis motor end with two M2.5 x 8mm screw.
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17. Assemble the right end of the X axis. (X idler end)
For the whole process of assembly of this part, please refer to the video here.
Part name
Part ID
Required number
pic
Z-axis nut
No.16
1
X-axis idle end
No.M2
1
Linear Bearing
LMH8LUU
No. 41
1
M3 x 6mm screw
No. 22
8
Step1.Mount the Z axis nut on the bottom of X-axis right end with 4 M3 x 6mm
screws.
Step2. Mount the linear bearing on X-axis motor end from bottom to up. Fix it up
with M3 x 6mm screws .
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18. Assembly of the extruder carriage
Part name
Part ID
Required number
pic
X
Carriage
No.M3
1
Bearing Bracket
No.M4
4
Extruder holder
No.M5
1
Linear Bearing
LM8LUU
No.40
2
Belt bracket
No.47
1
M3x6mm screw
No. 22
8
M3x12mm screw
No. 25
2
M4x6mm screw
No. 32
2
M3 nut
No.12
2
Step1.fix the 4 Bearing Brackets on the back of the X Carriage loosely with M3x6mm
screws. Insert the linear bearing into the slot and screw the bracket tightly.
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Please notice the front and back of the plate.
The following steps differs from the video, please build based on this manual.
Step2.Fix the belt mount on the back of the carriage with 2 M3x 12mm screws and
M3 hex nuts.
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Step3. Fix the extruder holder on the front side of the X carriage using M4x6mm
screws.
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19. Assemble the the X&Z axis
Part name
Part ID
Required number
pic
L320mm threaded
rod
No.4
2
L340mm smooth
rod
No.1
2
L470mm smooth
rod
No.2
2
locking ring
No.37
4
Step1. Thread the threaded rod to the nut of both end of X axis.
Keep both end of X axis at the same place of the rod, you are advised to measure the
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distance of the both side so that they are at the same level when you put them up.
Step2. Plug the threaded rod on the X motor end to the left coupling on the left bottom
of the Z axis. Then thread the 340mm smooth rod into the linear bearing.
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Step3. Thread the L470mm smooth rod into the X motor end > thread the extruder
carriage> thread the locking ring on the two rods.
* Attention please, as a modification on the design, you need to fix the locking ring on
the end of the rods, out side the carriages.
Step 4. Thread the two X axis smooth rods into the hole of X idler end.
Step 5. Plug the vertical threaded rod into the coupling on the right bottom of the Z
axis. Then thread the 340mm smooth rod into the linear bearing.
Step 6. Add another two locking rings on the end of smooth rod and screw up the 4
locking rings.
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Note: the smooth rods and the threaded rod of Z axis is vertical, and the X axis is
horizontal ,which is very important, or it will hinder the move of the Z axis.
Watch video here
(the location of the locking ring is different in the video, please assemble referring to this manual)
20. Assemble the Z axis top mount
Part name
Part ID
Required number
pic
Z top mount
No.A8 2
M3 x 16mm screw
No.26
6
M3 Square nut
No.17
6
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locking ring
No.37
2
M3 washer
No. 7
6
\
Step1. Put the locking ring on the two smooth rods separately.
Step 2. Add the Z top mount (No.A8) to the top of A1. slowly rotate the rods into the
holes, or add some lubricants on the rods. Do not force it, or u will break the acrylic
piece.
Step 3. Screw it up with M3 x 16mm screw and M3 Square nut.
Step4. Screw up the locking ring on smooth rods.
Watch the video here.
21. X belt driving wheel
Part name
Part ID
Required number
pic
Driven wheel
holder
No.42
1
Driven wheel
No.43
1
MR84zz Ball
Bearing
No.44
2
M3 x40mm screw
No.30
1
M4 x 25mm screw
No.35
1
M3 washer
No.7
1
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M4 washer
No.8
1
M4 lock nut
No.14
1
wing nut
No.15
1
Step1. Thread the M3 x 40 screw and M3 washer through the Driven wheel holder .
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.
Video
22. Add the belt
Part name
Part ID
Required number
pic
Timing belt
No.46
1
Belt bracket
No.47
1
Step1. Insert one end of the belt in the groove. Pay attention to the tooth mesh of the
belt and the groove.
Step2. Thread another end of the belt through the X motor end around the pulley.
Step3. Threaded the belt through the belt driving wheel and put the driving wheel into
the X idler end, lock it with a wing nut.
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Step4. Insert another end of the belt into the groove. Cut the spare part. Be sure of the
length of the belt.
Step5. Taut the belt and tighten the wing nut on the idle end.
Tighten the locking rings.
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*Note the direction of the bolt on the driving wheel, the side with bolt head should be
towards the A1, and the side with pitch facing out, or it will scratch the acrylic plate.
Video
(the location of the locking ring is different in the video, please assemble referring to this manual)
23. Mount the hotend
Part name
Part ID
Required number
pic
Hotend
No.66
1
M4x6mm screw
No. 32
2
M4 washer
No.8
1
Mount the hot end on the extruder holder plate from bottom to up with 2 M4x6mm
screws and M4 washers.
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Video (Note the extruder holder should be upside down.)
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24. Mount the extruders
Part name
Part ID
Required number
pic
Extruder
No.60
2
M4x12mm
screw
No.33
8
M4 washer
No.8
8
Mount the extruders on top of the main frame with M4x12mm screws.
Video
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25. Mount the LCD panel
Part name
Part ID
Required number
pic
LCD 2004
No.67
1
Knob
No.50
1
Spacer
No.49
4
M3 x 12mm screw
No.25
4
M3 washer
No.7
1
Step 1. Insert the spacer into the 4 holes on the LCD panel from front to back.
Step 2.Insert the LCD in the LCD frame on A1, fix it with 4 M3 x 12mm screws and
M3 washers .
Step 3. Screw up the knob .
*Pay attention to the two connectors at the back of the LCD.
EXP 1 is for the LCD.
EXP 2 is the SD card reader.
Do not mix them up.
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Here you can watch the video.
26. Mount the control board.
Part name
Part ID
Required number
pic
Control board kit
No.68
1
Sticker
No.56
1
Heat sink
No.55
1
Spacer
No.49
4
M3 x 12mm screw
No.25
4
M3 washer
No.7
1
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Step 1. Cut the sticker into small pieces.
Step2. Past the heat sink onto the chip of the A4988 drivers(on the main board) . The
sticker is double sided adhesive.
Step 3. Insert the spacer into the 4 holes of the board from back to front.
Step 4. Mount the board kit on the left side panel with 4 M3 x 12mm screws and M3
washers .
Note the direction of the board, the green connectors are downwards to got enough
heat dissipation from the fan.
Here is the video.
27. Mount the power supply unit(PSU ) and the socket.
Part name
Part ID
Required number
pic
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Power supply
Unit
No.61
1
3D Power Cable
No.62
1
M4 x 12mm screw
No.33
3
M3 x 16 screw
No.18
M3 hex nut
No.12
2
M4 washer
No.8
1
Power Cable
No.63
1
Step 1, take off the wires connected to the socket, before you do, please take a photo
of the wire connection, in case you connect them wrongly later.
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Step 2. Thread the wires that is connected to the red switch through another hole on
the bottom of the right side panel( A2) from outside to inside and connect the 3 wires
(brown, blue, yellow) to the socket, do not mix them up. Refer to the above picture.
Then pull the other wires out.
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Step3. Mount the socket on the bottom of the right side panel( A2) with 2 M3 x 16
Hex Counter- sunk-head screws and M3 hex nut .
Step 5. Thread the power cable from inside to outside.
Step4. Mount the PSU on the right side panel with 3 M4 x 12mm screws . And M4
washer.
Step5. Connect the wires to the PSU.
As you can see, there are 7 wires and 9 screws in total.
Note the correspondence between the color of wires and the connector.
Color of wire
connector
Brown
L
Blue
N
Yellow
GND
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Red
+ V
Black
COM
Video
28. Mount the Y endstop
Part name
Part ID
Required number
pic
M2.5 x 16mm
screw
No. 21
2
M2.5 hex nut
No. 11
2
\
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End stop
No.54
1
Mount the Y axis endstop on A12with M2.5 x 16mm screw and M2.5 hex nut
Video
29. Wiring
Before you start wiring, please take a look at the wiring schematics.
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Rev A
Rev B
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Note: The only difference between the Rev A and the Rev B here is the USB port, the
layout of other connectors are exactly the same. You can refer to both wiring
diagrams.
You can see original picture here.
Step1. Connect wires for motors.
1) Connect wires for X-axis motor.
2) Connect wires for Y-axis motor.
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3) Connect wires for the 2 Z-axis motors.
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4) Connect Extruder motors. Connect extruder 0.
5) Connect extruder 1
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Step2. Connect heating wires.
1） Connect heating wires for heatbed.
There are 4 heating wires for the heatbed, 2 black and 2 red, you need to connect the 2
red wires in one screw and the 2 black wires in another.
First loos the screws in the green terminal and put the red and black wires into the slot
separately, and screw it up.
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2） Connect heating wires for hotend to hotend 0.
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Step3. Connect wires for thermistor.
1) Connect wires for thermistor of heatbed
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2) Connect wires for thermistor of hotend 0
Step4. Connect wires for endstop.
1) Connect wires for endstop of X-axis at X-Min.
2) Connect wires for endstop of Y-axis at Y-Min.
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3) Connect wires for endstop of Z-axis at Z-Min.
Step5. Connect wires for Fan.
1) Connect fan for control board at FAN3.
2) Connect fan for extruder 0 at FAN0.
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3) Connect fan for extruder 1, connect the other to FAN1.
4) Connect fan for hotend at FAN4.
Note: for the fan of hotend, you will need the extension wire. Just connect the red and
black connectors.
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Step6. Connect wires for LCD panel.
There are two cables, one is for LCD encoder, the other is for SD card.
EXP1 to LCD
EXP2 to SD card
BTW, do you see the small screw above the SD card reader, if the text in of the LCD
phases in an out or there is only blocks on the screen, you can adjust this screw to
recovery it.
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Step7. Connect wires for power input.
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Step8. Connect the wires to the PSU.
Note the correspondence between the color of wires and the connector.
Brown------L
Blue ------N
Yellow----GND
Red ------ --+ V
Black------COM
That is all for the wiring of GTM32.
Do not forget to stick the heatsink on the chip of each stepper motor driver board.
30. Mount the filament spool.
Part name
Part ID
Required number
pic
M3 x 16mm screw
No.26
6
M3 Square nut
No.17
6
M3 washer
No.7
6
Spool base plate
1
Spool side pane
2
PVC tube
1
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PVC tube
2
So far, the whole printer is built up, you can tidy up the wires with the zip ties and the
coil wire.
Before even attempting the first print it is vital that the printer is correctly calibrated.
Skipping or rushing this step will result in frustration and failed prints later, so it is
important to take the time to make sure the machine is correctly set up.
Each machine may have its own calibration procedure and this manual will not
attempt to cover all the variations. Instead here is a list of key points that should be
addressed.
Frame is stable and correctly aligned.
Belts are taut.
Bed is level in relation to the path of the extruder.
Filament rolls freely from the spool, without causing too much tension on the
extruder.
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Current for stepper motors is set to the correct level.
Firmware settings are correct including: axis movement speeds and acceleration;
temperature control; end-stops; motor directions.
Extruder is calibrated in the firmware with the correct steps per mm of filament.
The point regarding the extruder step rate is vital. Slic3r expects that the machine will
accurately produce a set amount of filament when told to do so. Too much will result
in blobs and other imperfections in the print. Too little will result in gaps and poor
inter-layer adhesion.
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