D7 v1 Plate Stop

On the v1 D7 printers the bed assembly doesn't line up with the LCD correctly using the stop on the z bracket so this part can be added to keep the plate from being installed too far. I use to mark the top of my plate but it was still a pain when it was removed to get it installed quickly and straight. With this part I just push it all the way back and it stays aligned. This has been tested with two printers.

http://3dprinterwiki.info/wiki/wanhao-duplicator-d7-sla/tips-mods/v1-plate-stop/