K1 max Linear X axis rail MGN12 upgrade. (no rooting needed!)

Flagship K Series Creality Flagship K1 Max
1

I made the X Axis modification/upgrade by installing a linear rail MGN12 on my K1 max.
The gliders I downloaded from cults3d, a design made by “lashigt”, and made some adjustments on them by making the holes for the teethed gears little bit larger to 4mm diameter so I could use m4 bolts for the Idler gear 20T 5mm.

The printing results are great (Less till no VFA anymore on your prints) and a big improvement of the K1 max without having to root the machine.

Key components to buy :

  • 1pcs - Linear Rail (MGN12H L= 400mm) with Carriage (Precision/Fitting Class Z1),
  • 2pcs - Idler Gear 20T 5mm,
  • 4pcs - 3x10x4 Bearing (F623Z),
  • M3x6 Heated Inserts - Voron type,
  • M4x9 Heated Inserts - Voron type
  • 2 pcs Bolts (M3 DIN 7991 and DIN 912, lenghts 30 mm),
  • 2 pcs Bolts (M4 length 45mm)
  • 1 pce Square nut (M4)
  • 12pcs - M3x06mm Washers,

Self to print components

  • 2 self printed ASA filament left and right side-gliders blocks (design Lashigt)
  • 1 self printed ASA filament Extruder-hot-end carriage (design Lashight)
  • 1 self printed ASA filament K1 max chainsupport

reuseable stock components

  • bolts m3 length 4 mm
  • Linear Bearing (LM8UU)
  • Bolts DIN7991 M3x16-10,9

here some pictures of the proces :

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left old petg print(lot of vfa ) and middle and right new petg prints with linear rail less till no vfa.

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there are videos you can google how to assemble it by yourself!

6 Likes
3

Grazie di aver condiviso

1 Like
4

Non menzionarlo

5

Great write up. Do you have any links to the parts you used? This seems like the easiest way to get a linear rail on here.

6

thank you.

Just “google” linear rail mgn12H (L =400 for K1 max) and the deliver companies will pop up. do the same for other parts.

7

Will this work on a K1 SE ?

8

No you will need the linear rail mgn12H L =320 for K1 SE.

see material list at the design of Lashigt and you can contact him to be sure.

9

Thank you!

10

I just have received a new K1 max and did the X axis upgrade again last week and the results are again great, a big improvement of print quality.

11

Would it be possible to use this mod for the k1 max with a 7.8 mm belt? I would like to keep the original things but also eliminate the belt moving up and down in the pulleys.

1 Like
12

Yes no problem that belt will do okay

13

I was also wondering…wouldn’t it be better to use a 20t 4mm idler and an m4 screw? It fits perfectly and eliminates the play between the screw and the bearing…or why is 5mm and m3 used?

14

yes you are right use the same M5 M4 M3 screws with the same 20t 3,4 or 5 mm idler.