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

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 :





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

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

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Grazie di aver condiviso

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Non menzionarlo

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.

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.