Use transparent material only!
Set the Layer Height to the smallest (for example 0.05 mm),
Ordering Outside To Inside,
all patterns to concentric (top/bottom, initial, infill),
infill to 100%,
Flow = 110%,
temperature maximal for your material (by me 220 °C),
fan speed to minimal or 0%
lens_v1.f3d | 44.8KB | |
lens_v1.stl | 244.6KB |