Vzbot MGN9 Y Mod

I felt like my y gantry wasnt rigid enough so I remixed the original. I am not saying mine is better or not, but it seems to have helped with input shaper a bit. 

I am using bearing stacks and not a toothed or smooth pulley, will not work with gt2 pulleys they are too wide on the flange. 

made stiffer and interlocking