Anycubic kobra2 Pro Upgrade Kit

Diagonal Brace Kit: Includes diagonal braces, upper mounting plate, lower mounting plate, and screw package. Purpose: Forms a triangle with the gantry frame of the machine, enhancing the strength of the gantry frame and reducing slight vibrations that may occur during movement. The diameter of the diagonal brace is 20mm, and it is made of 6063 aluminum.

Z-axis upgrade guide rail kit： Replace the POM wheels in the Z-axis direction with linear guides, while keeping other parts the same as the original machine.  Please note that after the kit is installed, the distance between the left and right linear guides is 220mm. This will affect the printing size in the X-axis direction (left-right direction), reducing it from the original 220mm to around 210mm. 

Z-axis linear guide installation video: https://youtu.be/JfeiNsWbbu4

The download link for the STL files used in the video is: https://www.thingiverse.com/thing:6582910

Diagonal brace installation video : https://youtu.be/zNADQ91XvJM