spirograph/guilloche effect in text
hi, I'm trying to make a spirograph/guilloche effect in a O letter, like in the image below. What I'm trying to obtain is to keep the little curly rounded edges of the lines - like in the star shaped spirographs - with lines that follow the width and roundness of the letter margins. If anyone has any tip, please share, thank you 🙂

I followed a tutorial: https://community.adobe.com/t5/illustrator/how-to-recreate-this-spirograph-in-illustrator/m-p/11056989?page=1#M173275 and the effect is like in the grey image below..

