linear bearing for d-bot core-xy printer

for a LMEK12UU linear bearing

12x M4x25 cylinder head bolt
4x M4x12 cylinder head bolt
16x M4 nut

direct use with o and p v-slot-frame

use the small bed support if necessary

!!! z-endstop works for my setup !!! please check it double !!! before your hotend crash into the heatbed !!!