抓取器i3部件更新

Recently a friend of my gave me wooden graber i3 frame. So I decided to replace the xz carrie with printed ones, because I did not liked the original. From a local shop I bought two trapezium threaded rods (8 [mm]) and projected both carrie for these rods. Additional I created/printed 2 elements, which will hold the two rods and shafts at the top of the printer. A separate component was created to hold the end-switch for the x-axis. As for the extruder, I just printed out and use the prusa i3 mk2 extruder.