Geeetech acrylic Prusa I3 Manual de usuario
Table of Content
Identify the Printed Parts---------------------------------------------------------------- 3
Build the chassis
Assemble the port and starboard sides of the chassis------------------- 4
Assemble the Y idler--------------------------------------------------------------5
Assemble the front and back of the chassis-------------------------------- 6
The finished chassis---------------------------------------------------------------7
Attach the Y Plate--------------------------------------------------------------------------9
Build the X-Z axes--------------------------------------------------------------------------11
Build the X-Z plate-------------------------------------------------------------------------16
Attach the heatbed------------------------------------------------------------------------19
Assemble the extruder--------------------------------------------------------------------21
Attach the end stoppers-------------------------------------------------------------------24
Identify the Printed Parts
ID Number
Part Name
Number of
Parts
1
Chassis corners
4
2
Y motor mount
1
3
Y idler
1
4
Y belt holder assembly
1
5
Y belt holder assembly
2
6
Z left bottom
1
7
Z right bottom
1
8
X motor mount
1
9
X idler
1
10
X carriage
1
11
Z right top
1
12
Z left top
1
13
End stopper mount
3
14
Wade’s extruder body
1
15
Wade’s extruder idler
1
16
Wade’s extruder small gear
1
17
Wade’s extruder big gear
1
18
Hotend mounting plate
1
Build the chassis
1. Assemble the port and starboard sides of the chassis
Required parts
Number
printed chassis corners (no. 1)
4
380mm M8 threaded rod
2
350mm 8mm precision rod
2
fender washer
4
LM8UU bearing
3
m8 nut
12
M8 washer
8
1. Hold the printed chassis corners with the semi-circular opening facing upward and inward
2. Put 2 LM8UU bearings on one 350mm precision rod on the port side, and 1 LM8UU on the
starboard side.
3. Slide the precision rods into the semi-circular slots of the printed chassis corners. This step
might require some force. Make sure the precision rods are meeting the ends of the slot. An
optional step is to apply zip ties through the holes on the plastic corners to hold down the
precision rods.
4. Slide the 380mm threaded rods through the chassis corners right beneath the precision rods.
Put m8 nuts, m8 washer, and m8 fender washers on the threaded rods in the following
order:
m8 nut –m8 washer –chassis corner –m8 washer –m8 nut –m8 nut –m8 fender
washer –m8 fender washer –m8 nut –m8 nut- m8 washer –chassis corner –m8
washer –m8 nut (see pictures below for a visual illustration)
5. Tighten the nuts
Note: the top assembly is on the port side, and the bottom assembly goes to the starboard side.
2. Assemble the Y idler
Required parts
Number
623ZZ bearing
2
Printed Y idler (ID no. 3)
1
M3-25 screw
1
M3 nut
1
1. Put the M3-25 screw thru the printed Y idler piece, with two 623ZZ bearings in between. Lock
the other end of a M3 nut.
3. Assemble the front and back of the chassis
Required parts
Number
205mm M8 threaded rod
3
310mm M8 threaded rod
1
Printed Y motor mount (no. 2)
1
Assembled Y idler
1
M8 nut
26
M8 washer
22
M8 fender washer
4
Note: the easier way to put on these nuts and washers is to put one the inside ones first, then
sandwich the rod between two chassis corners, and then put on the outside nuts and washers.
1. Put m8 nuts, washers, and assembled Y idler on a 205mm m8 threaded rod. Slide this rod thru
the top holes of the front chassis corners. The order is: nut –washer –chassis corner –washer
–nut –nut –washer –assembled Y idler –washer –nut –nut –washer - chassis corner –
washer –nut. Do not tighten yet.
2. Repeat the previous step without the Y idler, and fix the rod on the bottom holes of the chassis
corner. The order is: nut –washer –chassis corner –washer –nut –nut –washer –chassis
corner –washer –nut. Do not tighten yet.
Pictures for step 1 and 2
3. nut –washer –chassis corner –washer –nut –nut –washer –Y motor mount –washer –nut –
nut –washer –chassis corner –washer –nut. Do not tighten yet.
4Align the rods and tighten all nuts so the chassis will not fall apart. You might need to adjust
the chassis later when mounting the Y plate.
5 Put the 310mm and 205mm rods through the printed Y motor mount, with orientation
shown in the picture above. The 310mm should be going through the top holes in the
chassis corners. The order of washers and nuts on the 310mm rod is: nut –fender washer –
fender washer –nut –nut –washer –chassis corner –washer –nut –nut –washer –Y
motor mount –washer –nut –nut –washer –chassis corner –washer –nut –nut –fender
washer –fender washer –nut. The order of nuts and washers on the 205mm
Pictures for step 3 and 4
4. Finished Chassis
Congratulations, now you have the chassis made. It should look like what’s in the picture below.
2
Attach the Y Plate
Required parts
Number
Acrylic bed
1
M3-16 screw
6
M3 nut
6
Y belt holder assembly 1 (no.4)
1
Y belt holder assembly 2(no. 5)
2
M3-10 screw
2
Zip ties
3
GT-2 timing belt
~70cm
Nema-17 motor
1
GT-2 20 teeth pulley
1
1. Insert four M3 nuts into the hexagonal slots in the Y belt holder assembly 1.
2. Loosely attach the two rectangular pieces to the main piece using four m3-16 screws. Make
sure the flat surface is facing outward.
3. Attach the acrylic Y bed to the chassis using 3 zip ties. Make sure the bed slide freely on the
chassis. Also attach a Nema 17 motor to the Y motor holder using two M3-10 screws, and
attach a GT2 20 teeth pulley on the motor’s shaft.
4. Attach the Y belt assembly to the acrylic bed using two m3-16 screws and two m3 nuts. Take
70cm of GT2 timing belt and insert one end into the Y belt holder. Tighten the two m3-16
screws to hold down the belt.
5. Wrap the GT2 timing belt around the Y motor’s aluminum pulley, and around the 623zz
bearings. Insert the other end of the GT2 timing belt into the Y belt holder and tighten the
m3-16 screws. The belt should be tight with tension. As the bed moves on the chassis, there
should be no skipping.
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