Here is a fun tool originally shown to me by Ralph Schroeter who is the owner of a Facebook group, Rhino Grasshopper Definition and Info Exchange - Jewelry Related GH code .
Ralph was kind enough to share the tutorial for this GH file on his page and I've found it extremely useful in having a visual way to size and scale millgrain to perfection! When you get on his page, tell 'em we sent ya! :)
“Gary Dawson is owner of Gary Dawson Designs, an online custom design operation that was once featured as a “Best of the Best” by Instore Magazine. Dawson has over 40 years experience in creating designs that capture the personalities and stories of his customers. He is a frequent contributor to MJSA Journal, a founding member of the Council of Custom Jewelers, and a designated “Mentor Jeweler”. He has delivered seminars and presentations at numerous events, including AGTA GemFair, Portland Jewelry Symposium, and the Santa Fe Symposium on Jewelry Manufacturing Technology.” ~Jewellery Business Magazine