Ender 3 / CR20/PRO Y axis Linear rail kit install

ID: 152460

Description:

Steps:

1. Remove all 4 bed leveling screws for the Bed heater.
2. Lift the bed heater and set it behind or to the left of the printer

3. Remove all 4 idler pulley bracket screws
4. Lift pulley bracket to remove tension on the belt
5. Remove Y belt
6. Remove idler pulley bracket and set aside all parts

7. Slide off Y carriage of the front of the Y axis extrusion
8. Remove V-Slots wheels

9. Remove Linear Rails for packaging and Wipe off excess oil with a lint free cloth
10. Preinstall M3x8 SHCS and Sliding Tnuts
11. Take Note to skip 2 holes between each fastener, and ensure to mirror this process from each end of the rail until you overlap in the middle

12. Note Sliding in the Linear rails do not allow rail block to slide off the end of the rails.
13. Insert Printed T-nut guide to help with sliding the rail into the top slot on the Y axis extrusion
14. Slide the rails into the top T-slot
15. Aline rails with the end of the extrusion using one of the included stiffener plates as a stop

16. Note when sliding on Rail alignment Jigs do not allow Linear rail block to slide off the end of the rails.
17. Tighten the M3 mounting bolts to the front of the rail to the back on both sides

18. Linear rail Block mounting hardware Per rail block mounting hole
19. M3x12 SHCS
20. M3 Flat Washer Per hole
21. Split lock washer
22. Stiffener plate 5th hole Screw (M3x10 SHCS with M3 washer)
23. M3 Hex nut

24. Right side
25. Left side

26. M4x10 FHCS
27. M4x12 BHCS
28. M4 washer
29. M4 washer large OD
30. M4 FHCS screw first. Then attach the M4x14S BHCS screw with the washer Stack.
31. Slide the Y Carriage forward and check that Y Carriage is parallel to that front of the Y extrusion. Then tight the screws fully.

32. Install this spacer between the Endstop bracket extrusion
33. Check that the y endstop is triggered by the Adaptor plate

34. Re-install idler pulley bracket
35. Re-install Belt back into the tab slots
36. Pulley idler pulley bracket forward to tighten the belt.
37. Then tighten mounting screws on both sides

38. CR20 Pro
39. Reinstall: bed heater plate, Solid bed mounts, Nylock nuts or bed leveling knobs
40. Ender 3 and CR20
41. Reinstall: bed heater plate, bed leveling springs and bed leveling knobs