Tevo Black Widow spring bushing & glass plate corner bracket

thingiverse

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 outside for easier fixation. Use and specs are the same. Order of mounting....... Put the original long 3 mm screw through heatbed at one corner. Turn heatbed washer with nut on the screw but leave a 1 mm gap between bushing and heatbed bottom. place spring place second spring bushing (no M3 nut!) slide at each corner the screw spring combination through the hole of the X crossbar. secure the bottom of the screw with a heatbed adjusting screw. when all four corners are mounted secure the top bushing full against the heat bed bottom. Level the heat bed. Parts need to be printed in 0.2 mm layer with 0.4 mm nozzle.