MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I bought HGW15CC blocks, that they are bigger than HGH15CA
But in Linnear Griizly they recommend them...https://www.thingiverse.com/thing:3419106
Thanks Juan Puchol for your repply and your work, you have a comment in the HGH15CA design