Geeetech acrylic Prusa I3 User manual

Assemble Instruction of Geeetech Acrylic Prusa I3
pro B
Version 04-11-2016

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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.
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.

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1Unfold the box and check the package
Unfold the package and take all the parts out to check the condition of the items. As
you can see, all the parts are packed very carefully.

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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.

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Tips:
1. Before assembly, you are advised to put all the parts, especially the screws and nuts
in order, which will save you a lot of time looking for the required parts.
2. 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.
2 Assemble the rods of a Y axis
Watch the video
Step1.Assemble the 2 threaded rods.
Pic
Part ID
Required number
Required parts
NO.5
2
M10 threaded rod
NO.A14
2
Y plate connecting
plate
NO.19
6
M10 spring washer
NO.9
8
M10 washer
NO.13
8
M10 nut
Thread the nuts and washers into the two M10 threaded rods separately. The order
should be:
1) Thread the Y plate connecting plate A14 in the middle.
2) Thread the M10 washer > M8 spring washer >M10 nut > M10 nut > M10 washer

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on the left
3) Thread theM10 washer < M8 spring washer < M10 nut < M10 nut< M8 spring
washer < M10 washer on the right
4) repeat the above steps for another threaded rod.

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Step2.Assemble the 2 smooth rods
Pic
Part ID
Required number
Required parts
NO.3
3
M8 smooth rod
NO.36
4
LM8UU Linear
bearings
Take out the 410mm smooth rod
Slide 2 Linear bearings on each smooth rod. Before you slide the bearings please
make sure they are clean.

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3 Attach the front and rear support plates
Watch the video
For some of the kit, the locking rings are the silver color, which will not affect the
assembly here, but in some steps, for the X axis, there is difference, please pay
attention to the note.

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Step1.Slide the locking ring on the smooth rods, thread the rods into the acrylic plate;
adjust the length so that the smooth rods fit snugly between the front and rear piece.
Step2. Screw up the rods and plate with M10 nut and M10 washer.
Pic
Part ID
Required number
Required parts
NO. A9,
A 10
2
Acrylic
plate( front)
NO. A 11, A
12
2
Acrylic
plate( rear)
NO.9
4
M10 washer
NO.13
4
M10 nut
NO.20
2
locking ring

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* Tips: Try to keep the rods parallel and the four acrylic pieces parallel. 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.
*Note: As we re-designed the rear plate, there are two more holes on A12, in this
case, you need to use the screw locking ring to fix the smooth rod.
4 Assemble the Y idler
Watch the video
Pic
Part ID
Required number
Required parts
NO.46
2
Ball bearing

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NO.41
1
bearing holder
No.45
1
Driven wheel
NO.28
1
M3 x 20 screw
NO.16
1
M3 wing nut
NO.33
1
M4 x25 screw
NO.15
1
M4 lock nut
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.
For your convenience, this step is already finished by us.

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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 from inside
to outside. And screw it with a wing nut.

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5 Mount the Y motor
Watch the video
Pic
Part ID
Required number
Required parts
NO. A13
1
Y motor fix plate

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NO.62
1
Stepper motor
NO.44
1
Pulley
NO.26
3
M3 x 12 screw
NO.28
2
M3 x 20 screw
NO.17
2
M3 square nut
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 flat side of the shaft. Screw it as tight as possible.

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Step2. Then screw the motor on the Y motor holder with 3 M3 x 12 screws and M3
washers.