Ultimaker XY Blocks
thingiverse
Ultimaker supplies cad drawings of their block pieces. I just converted them to printable volumes. Included in each zip is a Rhino, IGES, and STL/ Save you time making your own. Instructions See Ultimaker for instructions. http://wiki.ultimaker.com/Ultimaker_rev.3_assembly:_X-Y_axes
Download Model from thingiverse
With this file you will be able to print Ultimaker XY Blocks with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Ultimaker XY Blocks.