CraftUnique CraftBot 3 - Troubleshooting; Clogged Extruder Fixes

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CraftBot 3
9. Remove the rag from the CraftBot interior.
10. Plug in and power up the CraftBot and move the build plate to the lowest point. (enter the“Axes”
menu, home position and then go to the directional menu and press the Z down arrow until the
bed reaches the lowest point).
11. Turn the CraftBot printer o and unplug it from the electrical outlet.
12. Place a second clean rag on top of the heated build plate to protect the components and Kapton
from any overspray.
13. Repeat the process for the top side of the Z-axis rods the same as you performed on the bottom
half: placing a protective rag/ paper towel behind threaded rod. spray, & wipe any excess lubricant
on other two outside rods.
14. Power up the CraftBot once again. Press the home button in the Axes menu to raise the build
plate back up to the highest position.
15. Turn the CraftBot printer o and unplug it from the electrical outlet.
16. Wipe any excess lubricant o from the bottom side of the Z-axis rods and bearings.
17. Power up your CraftBot once again and move the build plate back to the lowest point.
18. Turn the CraftBot printer o and unplug it from the electrical outlet.
19. Wipe any excess lubricant o from the top side of the Z-axis rds and bearing.
20. Power up the CraftBot once again and raise the build plate back up to the highest position.
21. Turn the CraftBot printer o and unplug it from the electrical outlet. The motors will now
disengage so that you can move the extruder freely by hand.
22. Use an oiled rag to lubricate the X and Y linear rails. Do not spray from above! Move the
extruders back and forth by hand to both extremes of the axes. When the extruders moves
absolutely smoothly you are nished.
10. TROUBLESHOOTING
10.1. PREVENTING/ FIXING A CLOGGED EXTRUDER
The number one inconvenience that you will run across when 3D printing is clogging of the extruder.
But we have good news for you! This problem can be easily avoided by following a few simple rules of
“3D printing etiquette”.
• First, always wait until the extruder and heated build plate are fully heated to their maximum
intended print value before inserting the lament. Inserting the lament at a lower temperature is
just asking for a clog.
• On the side of the Extruder assembly is a pressure leaver that you can adjust the pressure
the Bearing that pushing the lament onto the Extruder gear wheel. make sure this et to max
pressure.
• When unloading or changing the lament: always heat up all the way rst and then “extrude” for 5
seconds and immediately press “reverse” aiding the lament retrieval by pulling a little bit on the
lament end coming out from the extruder with your hand.
• It is especially important to clean out as much old leftover lament between using a dierent
lament, as the dierent characteristics of the laments may cause problems. Problems
may occur from even printing the same material in a dierent color, can cause clogs from
inconsistencies in the laments. For example: you must heat up to 250°C to clear out any extra
ABS left behind before using PLA which melts at much lower temp than ABS.