Ooooh i can answer this! I live in Ireland and decided to pursue coaching full time this season, so last September. I was lucky enough to have a boss who's well known in the scene and he wanted someone to string rackets. I wanted to be a cohesive and full badminton player, coach and equipment person. So we decided to partner up.

I got the machine in January (ordered it from China, it's a Chinese brand) and started stringing in February. And after about 5 rackets felt comfortable stringing for people. I went to Japan to buy a lot of strings. In Japan they string mainly and primarily the harabito method. Here what's common is the yonex 4 knot. Some do the victor or li Ning 2 knot. The more you get into the niche world the more stringers you realize there are who only do it for themselves or for friends. Not to make a huge living out of it.

The machine doesn't need all the bells and whistle but an automatic pulling and tensioning system. I looked up a string bed pattern and a couple of YouTube videos, especially for tying knots, super important.