Do you like to make the Diamond Top Fold Card? Here is a video tutorial by Sarah Trebilcock
From the screenshot
I’ve worked out 4 sizes
Watch my tutorial here
https://youtu.be/epJTkfOMqgU
In dimensional view, Sarah Trebilcock gives perpendicular angles to the diamond top fold card
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.