I'm using the 22 Jan 2020 Beta.

I'm having difficult getting the accuracy that I want from the flow function. To illustrate the issue I've created a simplified version of my design.

I have an array of 6 blocks, each 25 mm wide, 85 mm tall and 5 mm thick. So the overall dimensions of the array are 150 x 85 x 5.

Behind and abutting this array is a plane 150 x 85.

Further behind is the target, a cylinder with perimeter 150 and height 85.

Flow appears to do an excellent job projecting the blocks onto the surface of the cylinder, however I've discovered that none of the project blocks occupy exactly 60 degrees.

The screen grab shows one projected block that subtends less that 60 degrees (others subtend more than 60).

The attached file contains the objects described above and the projection.

What am I doing wrong?