SUNHOKEY I4 Manual
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Step4: install the leadrail of the X axis with screws:
M3 X 30 8 PCS PS:please read STEP 5 as a reference
Step5: Pay attention
if the leadrail is not level after you screw, please unscrew and
adjust it to level.
Step11: Fix the extruder holder to the X axis with
screws: M3 X 8 4PCS
Don't make the back to front
Step18：Wiring of the Cooling Fan
Find No.1 (wire of 12V cooling fan)and connect it to the right
position.
pay attention: Red to Red. Black to Black
Step19：Wiring of the Turbofan
Find No.2 (12v turbofan) and connect it to right position
Pay attention: Red to Red. Black to Black
Step20：Wiring of Heater
Find No.3(24v Heater) and connect it to the right position
Pay attention: Red to Red, Black to Black
Step21：Wiring of the thermistor of hotend
Please find the thermistor of the hotend, and connect it to
A13 of the Mainboard
Step22：Wiring of the X-Axis stepper motor
please find the stepper motor of the X-Axis, and connect it to
X_MOT of the Mainboard
Step23：Wiring of the extruder stepper motor
Please find the stepper motor of the extruder, and connect it
to E0_MOT of the Mainboard
Step24: Install the Z-Axis ENDSTOP
Unscrew
ensure the small
part touch the
base
screw tight
complete
Step26：Install heating bed and Y Axis
find the connector of the Y-Axis stepper and connect it to
Y_MOT of the Mainboard
Step27：Wiring of the Y-Axis stepper motor
Connect the Y-Axis stepper motor to Y_MOT of the
Mainboard
Step28：Wiring of the thermistor of the heatbed
Find the thermistor of the heatbed and connect it to A14 of
the main board.
get it
through the
hole
pay attention to the direction of the bed,must same with the picture shown.
rescrew the four screws as before they were taken apart and then
block them.
Step32：install the heatbed
rescrew the four screws as before they were taken apart and then
block them.
Step 37：Choose the correct voltage in the power
supply. It's very important.
this step is very important. if you don't make the voltage correctly, it
will cause printer burnt
after you finish previous installation, you should test the printer
before you finish the rest installion.
But before testing, you must choose the correct the voltage first.
There is a voltage switch in the power supply. one side is 230v, one
side is 115v. if your local voltage is 220v, please turn the switch to
230v side. if your local voltage is 110v, please turn the switch to 115v
side.
Step 38：Test the printer
after you confirm the correct voltage, please let the printer power
on. Working status would be: the fan works, LCD can display like the
picture.
Step39：Problems would occur while testing
no any characters in the LCD,
please ensure you have done correct wiring.
messing codes occur in the LCD, please press the buttoon
like the picture
Step40：Test the endstop
Fix the printed part of Z axis
endstop to the place as the
pictures show
after fixing the printed part,
please turn the screw to
very bottom, which can
ensure the hotend don't
touch the heatbed
Step 41：Test all endstops
test the endstop with lcd
1. press the button ->turn it to 'Prepare' and press ->turn the button to ' Auto
home ' and press
X-Axis ENDSTOP is
Auto home
Y-Axis ENDSTOP is
Auto home
Z-Axis ENDSTOP is
Auto home
Step42：Install the top acrylic framce
Put M3 *20screws into
the hole of top acrylic
frame
fix the screws in the
hole with tape
Step 43：Install top acrylic frame
Fix top acrylic frame with M3*20 screws，ATTENTION：Acrylic frame is fragile, please screw it
carefully
Step 45：Testing and Calibration
level the heatbed through adjusting the 3
screws
distance between nozzle and headbed is the
thickness of a pcs of A4 paper. Meanwhile, you
can move the paper smoothly between them.
I4 Facebook：
this is our prusa i4 group :
https://www.facebook.com/groups/573076312852368/
there are many people who have full experiencs in 3d printing.
people are very friendly in this group . thank you!
Welcome to follow Sunhokey Facebook:
www.facebook.com/sunhokey.china
Sunhokey company page : www.fb.me/sunhokey3d
