Trimline Workshop Gutter
A believable roof edge is designed as a system, not added at the end.
The gutter sits tight under the profiled roof and follows the eaves with a controlled fall, so the line stays level to the eye while the water still moves. Everything that makes that work — support arms, butt straps, stop ends, outlet and downpipe — is part of the same system.
Brackets at roughly a metre, and closer where snow will slide off a metal roof, because that is where gutters actually fail rather than at the joints.
Products used
Add the lot in one go, then set the quantities you need.