Parts are for the Hic Tech 3DP11 aluminum Aurora 3D printer
These parts add support to the lower ends of the solid Z axis rods, where there is very little support provided in the original design.
Part size to fit the printer should be X=1.780 inch, Y=872.031 inch, Z=227.855 inch
Part has a added rim to add hold around the motor metal support. Z measurement is to that rim.
Video of how this part is used on the Hic tech 3DP11 can be seen on youtube from this link: https://www.youtube.com/edit?o=U&video_id=HM0MMAzK6vo
No need for longer bolts:
Holes are made with a slope, so the original bolts ment for holding the support to the motor can still be used.