FreeEnder 3 Y axis linear rail conversion (no drilling required) V2 now here
Thingiverse
5 model
Free
FreeEnder-3 Dual Z linear-rail mount - no-drilling Version
Thingiverse
FreeY AXIS DUAL-RAIL MOD VERSION 2 (no drilling required)
Thingiverse
FreeAIO MGN12H X linear rail Direct Drive or Bowden Ender3 (No 2020 extr)
Thingiverse
FreeEnder 3 X-Axis Limit Switch for Linear Rail Offset (no new hardware needed)
Thingiverse