What is the effect of changing the dart width in a bra cup pattern?
This question caused a lot of intrigue on Instagram when I asked it, and it's a question that has confused me as well for a long time. Analysing this alteration and its effects has really improved my overall understanding of bra cup geometry, so even if you don't intend to wear darted cup bras, I would still recommend reading through this post to help understand other alterations. An extended version of this post can be found on my Ko-fi , where you can get instant access to this and previous extended blog posts for just £2. If you want, you can become a member for £2 a month to continue supporting my blog. I drew up a Foundations Revealed draft of a darted cup bra. It's possible to maintain all the internal cup radiuses and wireline lengths while altering the dart angle, shown below to make it both narrower and wider. When we widen the dart, the whole bra seems to shift upwards. What happens to the fit, though? Same pattern, changed dart width There were all manner of d