Instructions

USER GUIDE
26
10.2. Lubricating
The CraBot printer should be lubricated at least once aer every 50 hours of use or every 6 months.
Tools needed for lubrication:
• PTFE based spray lubricant or grease
• 2 separate lint-free rags or thicker stronger paper towels
• personal protection such as gloves and safety glasses/goggles
• lighting to see the interior of the CraBot correctly (lamp)
1. Move the build plate and the extruder to the „Home” position.
2. Once the extruder and bed are in the home position, turn the CraBot printer off and unplug it from the electrical
outlet.
3. If you look beneath the build plate you will see three rods that run vertically in which the build platform moves up
and down on. The two outside rods are smooth and the center rod is threaded. These three rods are known as
the “Z-axis rods”.
4. Place a folded paper towel or a lint-free rag behind the center rod. This rag is used to protect other areas of the
printer from any overspray that may occur.
5. LUBRICATE ONLY THE PARTS RECOMMENDED IN THIS MANUAL!
6. Spray the threaded Z-axis rod at a relatively close distance to reduce overspray. Make sure the lubricant reaches
the inside of every thread (if using grease, spread with hand wearing gloves).
7. Make sure not to overlubricate, spray only the minimum required amount!
8. Do not spray the other two rods directly! Spray the towels and wipe it onto the rods.
9. Remove the rag from the CraBot interior.
10. Plug in and power up the CraBot and move the build plate to the lowest point (“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 CraBot printer off 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 boom side: protective
rag behind threaded rod, spray, wipe excess lubricant on other two outside rods.
14. Power up the CraBot once again and raise the build plate back up to the highest position (set the X, Y and Z to
the home position).
15. Turn the CraBot printer off and unplug it from the electrical outlet.
16. Wipe any excess lubricant off from the boom side of the Z-axis rods.
17. Power up your CraBot once again and move the build plate back to the lowest point.
18. Turn the CraBot printer off and unplug it from the electrical outlet.
19. Wipe any excess lubricant off from the top side of the Z-axis rods.
20. Power up the CraBot once again and raise the build plate back up to the highest position.
21. Turn the CraBot printer off 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 move absolutely smoothly you are finished.