Recently upgraded both of my machines to the HDZ upgrade, lovely piece of work I might add, and ordered the ears from C3D. he first set I got the holes for the Suckit and the relocated X limit switch were wrong. Notified C3D that the holes were the wrong size with a picture of the Suckit bolts sticking through.
C3D quickly sent me another set of ears which were also drilled and tapped wrong.
*** ATTENTION C3D ***
The holes for mounting the Suckit HDZ Pro dust boot are A. Metric and B. need to be drilled and talled for M5 0.8 mm thread. I managed to make it work by adding M5 nuts. The Suckit bolts and the limit switch are SUPPOSED to thread into the threaded holes in the ears. The only holes that are the correct size were the two holes for mounting the ear to the HDZ.
Ya might want to check the fabrication QC.
Other than that, I love my XXL
Mike B.