Difficulty
Moderate
Steps
9
Time Required
45 minutes - 1 hour
Sections
1
- Stepper Motor Damper
- 9 steps
Flags
2
In Progress
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BackFLSUN QQ Repairs
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Introduction
What you need
Step 1
Power Down Printer
- turn off power
- unplug from wall
turn off power
unplug from wall
1024
Step 2
Open Base of Printer
- Use 2.5mm hex key to remove 6 screws from base of printer
- save screws for later
Use 2.5mm hex key to remove 6 screws from base of printer
save screws for later
Step 3
Identify Damaged Damper
- visually inspect all dampers for damage
- most likely damage is to the rubber section
visually inspect all dampers for damage
most likely damage is to the rubber section
Step 4
Remove Tension from Belt
- unscrew thumbscrew that tensions the belt
- save thumbscrew for later
unscrew thumbscrew that tensions the belt
save thumbscrew for later
Step 5
Remove Belt from Stepper Motor
- use 2mm hex key to remove belt cover
- remove belt from stepper motor
- use 2.5mm hex key to remove stepper motor bracket from the top side
use 2mm hex key to remove belt cover
remove belt from stepper motor
use 2.5mm hex key to remove stepper motor bracket from the top side
Step 6
Remove Geared Pulley from Stepper Motor
- measure the position of the geared pulley so that you can put it back later
- use 2.5mm hex key to loosen set screws
- slide geared pulley off of stepper motor shaft
measure the position of the geared pulley so that you can put it back later
use 2.5mm hex key to loosen set screws
slide geared pulley off of stepper motor shaft
Step 7
Remove Motor Bracket
- use hex key to remove last screw from the stepper motor mount
use hex key to remove last screw from the stepper motor mount
Step 8
Replace Damaged Damper
- use hex key to remove 2 screws holding the damper to the stepper motor
- use Phillips #1 to install new damper
- alternatively, use hex key to install new damper with old screws
use hex key to remove 2 screws holding the damper to the stepper motor
use Phillips #1 to install new damper
alternatively, use hex key to install new damper with old screws
Step 9
Re-Install Stepper Motor
- re-attach geared pulley
- re-attach stepper motor mount/bracket to the damper
- Remember the screws you saved when removing the motor mount?
- re-attach stepper motor bracket with screws from above
- re-install pulley / tensioner to top of frame with thumb screw
- re-tension belt
- finally re-install the belt cover
- Some people have suggested that this belt cover is not needed. It is possible that you could re assemble with one of the screws left over from replacing the damper to secure the damper to the mount.
re-attach geared pulley
re-attach stepper motor mount/bracket to the damper
Remember the screws you saved when removing the motor mount?
re-attach stepper motor bracket with screws from above
re-install pulley / tensioner to top of frame with thumb screw
re-tension belt
finally re-install the belt cover
Some people have suggested that this belt cover is not needed. It is possible that you could re assemble with one of the screws left over from replacing the damper to secure the damper to the mount.
To reassemble your device, follow these instructions in reverse order.
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Daniel Green
Member since: 02/08/2015
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