by setar, published

XCarriage_ballbearing(Roboforum_ru) by setar Nov 19, 2012
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The X carriage based on ball bearings

Visual design based on XCarriage from Mendel90 by nop head


  • very smooth ride (much smoother than LMxxUU)
  • adjustable clamp
  • very cheap
  • quickly mounted
  • parametric source file


Check your axle spacing
axle spacing in STL files = 56 mm (for 8mm rod) and 58 mm (for 10mm rod)

Ball Bearing 3x7x2.5 - 12pcs
Hex screw M3x10 - 12pcs
Hex screw M3x20 - 4pcs
Hex screw M3x30 - 3pcs
Nut M3 - 3pcs

Printed parts (for dia of smooth rod = {N}):
Xcarriage_bearing(3x7)_v4_fixdual{N}mm - 1pcs
Xcarriage_bearingv4{N}mm - 1pcs
x_belt_clamp - 1pcs
x_belt_grip - 1pcs
x_belt_tensioner - 1pcs

Development page (Russian Language):

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you're wrong.
I have to compare the good linear bearings.
When in doubt, just follow your faith
is the version number 4 
I use this myself for several months.

You must have some very bad linear bearings if this is mash-up is better than the bearings designed for doing exactly this.