I started these for an upcoming project and decided to share what i had so far. Used with 3/4" electrical conduit to build / make what ever you want. Screw holes were purposely left out in case you wish to scale up or down, at 35% + infill its more than enough to safely drill your own holes. Built it gusset's for extra strength. Size posted is for (3/4" EMT). Print "test_fit_ring.stl" first and scale from there, this is easiest, fastest, least amount of waist way to size to your pipe correctly. More parts are to come so "watch" to be informed.
Parts list so far:
NOTE: Parts uploaded before 12/24/2018 are 23.5mm, parts uploaded on or after 12/24/2018 are 23.8mm.