Photos finished, awaiting entry thread…
But no pressure!
Let me share my shenanigans I came up with. First I had a flash of genius how to “circumvent” the at-least-three-colours rule: preparing two colours and not adding either all at once, but alternating for many layers (though only two pouring pots to clean afterwards). But since I don't want to risk trouble, I finally went with four individual colours (one split, so I have five layers that OPW-blend into each other).
I was really curious how the OPW swirl would look like when cut not perpendicularly. But in case it didn't look decent, I didn't want to put my single try on OPW to risk. So I came up with this principle:
View attachment 57375
- OPW pour 1: Cast a OPW, but tilt upright quicker, and stop when the mould is only half full.
- Intermediate quench: Spritz some deep-frozen lighter fluid (butane gas) on top of the free surface. It'll cool the soap batter down, and create a layer of false trace (maybe even ice). This will hod the underlying OPW pour in place, when we tilt the mould again for a
- OPW pour 2, this time lifted at the short axis of the mould. The shock-frozen “floor” in between provides us with essentially another cuboid mould for this. (Unfortunately, my recipe was really prone to false trace, so that the second layer of my specimen is a lot thinner than the first, and much of the beautifully patterned batter stayed in the pot .)
- Diagonal cutting: Instead of the standard loaf cut (right angles everywhere), I chose about 70° of an angle for cutting, so that I cut through the OPW axis of pour 1 roughly perpendicular at 70°, but nearly parallel to the streaks (20°) through pour 2 swirl.
- Combining end pieces. The nearly triangular end pieces are not trash. I wetted the sides that were the perpendicular sides of the loaf with water and excess half-cured soap scraped from the mould, and “glued” them together to form another bar of soap of roughly the dimensions of the others.
A strange effect of the diagonal cutting is that the photographs look distorted, since our eyes are so used to interpret soap bars as cuboids, and would rather blame photographic optics for aberrations than question their prejudices towards right angles.
And yes, it's not an accident that this cut pattern resembles my
suggestion in the “hanger swirl” thread, that
@soapmaker demonstrated that it not only is a theoretical idea, but turns into to be beautiful in reality!
Regarding OWP, the effect of cutting in a grazing angle is less impressive than it sounds. The patterns really look best in perpendicular cuts.