Here is an updated collection of sunflowers in petal counts from 12 to 30, including a 16-petal flower [16c] with loops at the base of each petal in addition to the inner part. I haven’t yet experimented with the extra loops version. I’ve also fussed over the other sunflowers, smoothing the loops and making them more loopy and less lumpy.
I have mostly used the 18-petal version and I’m happy with it but there may be better approaches. There are about 23 trillion variables here: petal length, loop curvature, loop size, petal count (have I reached my first trillion yet?)… And loop curvature itself is packed with variables since the curve is not an arc but a segment of a spiral. Curve experts are welcome to correct my terminology.
The many-petal versions might be useful for larger-diameter joining projects. The lower petal-count variants are intended for small joins where melting can be an issue. Also, as the diameter of the sunflower decreases, the thickness of each petal shrinks proportionally. Lower petal-counts help compensate.
Acrylic Iris.svg.zip (28.6 KB)