First layer, Retract and Bridge tower test

Each tower has 80 by 40mm footprints and will be perfect to test your first layer (adjust your z offset). After you have two towers to test your retract (you can change the retract setting each 10mm for example) and finally you have the bridge (with two versions flat and fillet) to test your flow/speed/cooling setting for the bridge.

Hard version = Flat (big bridge)

Easy version = Fillet (small bridge)