I designed and printed spacers and brackets to mount the condenser in front of the radiator. These are printed in medium quality mode in ABS (Acrylonitrile Butadiene Styrene). The final part will be printed in high-quality mode in nylon, but I need to upgrade the extruder and several other parts of my 3D printer to handle the higher temperatures. I still need to carefully tap and drill the top of the radiator because if one of the fins are compromised it will be ruined.
I designed the bottom bracket to be made of bent aluminum sheet. I decided to print it so that I could test the fit. McMaster provides 3D download of all of their parts so I able to check the nut's clearance up front. I am surprised at how strong it is. If I decide to go with a nylon print, I'll add some material to the inside bend.