Bird Feeder Perch Ring

Custom perch ring for a lighthouse inspired bird feeder I purchased at Lowe's, a chain of hardware and home goods stores in the US. The bird feeder itself has a small perch area with a 7" (177.8 mm) ring and 4mm diameter rounded lip. This seemed too small to me so this an attempt to provide more perch space to accommodate larger birds. The ring hugs the lip of the feeder tightly using M3x12 bolts. I thought this might lead to it slipping off, but so far it's held up nicely, even with frequent squirrel visits. I was hoping to see cardinals use it, but so far I haven't seen them go for it. However this thing can hold so many house finches. One plate on my A1 can print 2 of the segments. I added rafts because I was having issues with bed adhesion. I'm not certain this specific feeder is still for sale, but there is a very similar one listed which looks to have about the same dimensions. https://www.lowes.com/pd/Style-Selections-Blue-Steel-Hanging-Seed-Suet-Bird-Feeder/