Just printed the first part of my D&RG #168 project, a rough version of the compressor. I was particularly worried about how a 4K resin printer would resolve the fins on the cylinder; they show up just fine, although the white in the gaps is due to my failure to completely dry the part after washing. I now feel confident to add other details, as I know they'll show up. Here's a pic, part posed on 1/4" graph paper:
