Y Rod Bracket with trapped nut for Aluminum Mendel

I wasn't comfy with the drill/tap concept on printed parts for the original (and most *excellent*) Aluminum Mendel design. So I went ahead and started making some trapped nut versions of the affected parts. Hopefully, I'll find time to work out more trapped nut replacement derivatives soon... until then, here's the set of brackets that hold the Y axis smooth rods in place.