Anycubic i3 Mega conversion to linear rails

Due to very noisy linear bearings, flexing rods and massive play, I decided to convert my i3 Mega to have nice and sturdy linear rails instead of the original steel rods with linear bearings.

From this Aliexpress shop ( https://www.aliexpress.com/store/1760039 ) I ordered some SGR10N rails and roller blocks ( https://www.aliexpress.com/store/group/SGR10N-series/1760039_510602243.html )

This seller is really nice and helpfull, on request they cut the rails to any lengnth you desire. So I let the Y-rails cut to the i3 Mega's 370mm.


The build platform: (Y-axis)

Unfortunately I mis-ordered three 4-roller blocks instead of three 3-roller blocks for the Y-axis. But I just cut and machined them to fit the available 120 mm below the print-bed.

Installing the rails on top of the i3's base case is straight forward. Just measure well and accurate and drill and tap the holes carefully and precise. Since the case's wall is only 1mm thick, I put additional nuts to prevent the thread