Y-Carriage supported Linear rail upgrade for Geeetech printers

If you're reading this, it's probably because (like me) you're sick of constantly re-adjusting the bed height because the 8mm smooth rods flex easily. To make matters worse, the rods on my printer had a slight bend. Soooo, this upgrade replaces the Y-Carriage 8mm smooth rods on GeeeTech printers (and possibly others) with 12mm supported linear rails.

The re-designed y-carriage end supports are a direct replacement for the existing aluminium supports. The rear support also incorporates a buil