Printed with a 15line brim to help adhesion, other than that no supports required. 98cm version of the belt printed. The segments freed quite easily once printed, just pull the belt straight and many pop, then a bit of pressure with my hands freed the rest. Seems quite strong too.
TriGorilla Anycubic PLA
15wide brim to help adhesion as the belt is quite thin. Even with this one segment tried to lift up. I didn't notice and it damaged the bottom of 2 segments, luckily I think the belt is tough enough to survive the issue, but watch for lifting on the first layers. It's a long print and if you miss a lift/curl near the start you waste a LOT of time and filament.