Tiny Machines 3D

*CR10, CR10S, CR10S Pro V1-2, CRX+Pro, CR10 V2-3,  

This guide outlines installing the TM3D Y Axis Linear Rail Kit on the CR-10 */S/V2/V3 from TM3D.

For CR10S PRO and CR-X Y Kit please visit this guide. 

For Ender 3/CR-20 Y Kit please visit this guide. 

>Inspect kit contents and measure linear rails before any disassembly
>Save all removed components until assembly is complete
>Contact us with any questions or issues with your kit

Stock Parts Teardown:

• Remove bed leveling knobs
• Unclip the Y belt From the Y carriage and remove stock Y carriage plate from the machine
• Remove all V-slot wheels and hardware from Y carriage plate

Rail Prep Instructions:

• Remove from packaging 
• Wipe off extra oil with a lint free cloth
• Install M3X8 SHCS and sliding T-nuts onto rails
  • Take Note to skip 2 holes between each fastener, and ensure to mirror this process from each end of the rail until you meet in the middle.
    • For rails with an odd number of mounting holes, the pattern will overlap in the middle
    • For rails with an even number of mounting holes, the pattern will be continued across the rail

A

B

C

• Skip installing the first 3 T-nut on both rails
  • Slide 3 T-nuts in to the extrusion and space them out to match the rail's hardware. Slide the linear blocks close to the end of the rail (fig A) and then attach the rail with the 3 pre-installed T-nuts from the previous step (Fig B).

D

E

F

• Install the Printed T-nut guide on the of the Y axis extrusion and slide the rest of the rail on to the Y-axis extrusions.
• Line up the front edge of the rail with the center of the front extrusion.

CR-10/S Y rail kit

• Note both rails installed on the stock center aluminum extrusion as show in the picture below.

• For the CR-10/S the rail should space back 20 mm from the front extrusion

G

H

I

• Use the 2 MGN12 Printed centering jigs to align the ends of the rails as you tighten the Rail fasteners for each rail

J

K

Linear rail block Mounting hardware Per Rail hole

M3x12 SHCS

Split Lock Washer

M3 Flat Washer

5th hole

M3x10 SHCS 

M3 Flat Washer 

 M3 Hex Nylon Nut

L

M

N

• Install the SLS Linear rail adaptor on each of the Linear rail blocks with a Metal stiffener plate on the outside
  • leave all screws slightly loose

Reinstall the Y Carriage:

Left Side	Right Side

• Install 2 FHCS on the smaller holes (Aligning them on the left or right side). 
• 2x M4 BHCS on the larger holes with an M4 Large OD Flat washer, M4 Flat washer, and M4 Split locking washer.
  • Leave all screws slightly loose

• Fully tighten the M4x10 FHCS (On the left)
  • Then tighten the Carriage block M3 mounting screw on both sides
  • Lastly, tighten the M4 SHCS on the opposite size of the Y carriage Plate

CR-10 & CR-10S End Stop

CR10S V2/V3 End Stop

Final Assembly 

• Slide Y belt back into the Grooves on in the Carriage plate
• Reinstall bed and check travel limits
• Adjust Y endstop, so the nozzle meets the front edge of the bed when triggered.