I made an X-Axis revision with belt tensioner and bearing clampings. It is inspired by the bear mod x-axis but fits with the normal Prusa extruder. The x-axis is also much stiffer than the original one. Additional holes for m3 screws to attach a camera are also integrated.

All Features:

• Belt tensioner
• Bearing clamps
• End stops for the bearings
• Integrated holes for camera ect.
• Stiffer than the original X-axis

Compatible with:

• MK3 Extruder
• MK3s Extruder
• MK3s+ Extruder

What you need:

All screws an nuts of the original X-axis

and

• 4x M3 x 12 screw (ISO 4762) for bearing clamps
• 4x M3 Hex nut (DIN 934) for bearing clamps
• 2x M3 x 18 screw (ISO 4762) for belt tensioner
• 2x M3 Hex nylock nut (DIN 985) for belt tensioner
• 1x M3 x 16 grub screw (DIN 913) for belt tensioner idler (you can also cut a M3 screw and use it)

Tighten the screws of the bearing clamps carefully otherwise the bearings will take damage. The slit should not close completely.

If you get an x-axis error after assembling make sure the rods are pressed all the way in.

Depth for the pulley:

Additional holes:
Screw distance 18 mm

Screw diameter: 3 mm

Cameraarm:

https://www.prusaprinters.org/de/prints/57220-cameraarm-for-revised-x-axis

Print instructions

Material: PLA or PETG
Perimeters: 2 or 3
Infill: 20-25%
Infill pattern: Rectilinear
Layer height: 0,15 mm

Supports

x-end_motor_boogie.stl : painted supports for the small bridge

x-end_ilder_boogie.stl : no supports

x-end_tensioner_boogie.stl : no supports

Update:

11.11.2022: improved x-end_motor_boogie.stl

12.02.2021: Release