How can I make curly rāmen noodles from scratch?
Inspired by Claire and the Bon Apettit team I did a bit of research and found the following. 

Silicon flaps attached to the noodle cutter is one way to get the curly or wavy ramen noodle. 





You can create your own version like Alex the French Cooking Guy did.



Which result in a nice curly noodle. 



Full write up with the links to the videos and timecodes etc here.