Tevo Black Widow spring bushing & glass plate corner bracket

To prevent the top of the springs to dig into the heatbed and to align the springs you can use these bushings. The bushing uses a 3 mm nut inside which can be /pulled/pressed in.

Update 5-11-2017
Added adjustable corner bracket for holding the glassplate.
If glassplate is smaller use M3 screws to clamp.
If glassplate is larger then adjust the corner brackets outwards.
The cornerbrackets are clamped by the first mounted hexagon bushing.

Update 20-02-2017
Added V2 version which has hex