*[http://www.ebay.com/sch/i.html?_nkw=1%2F4+flex+coupling+cnc&_sacat=0&_odkw=1%2F4+flex+coupling&_osacat=00 1/4 to 1/4 inch coupling] That's the developers ebay link, which leads to a variety of couplers. On the videos, he talks about a 3-piece version. I hadn't watched that yet and got a one-piece, and it seems to be doing the job. | *[http://www.ebay.com/sch/i.html?_nkw=1%2F4+flex+coupling+cnc&_sacat=0&_odkw=1%2F4+flex+coupling&_osacat=00 1/4 to 1/4 inch coupling] That's the developers ebay link, which leads to a variety of couplers. On the videos, he talks about a 3-piece version. I hadn't watched that yet and got a one-piece, and it seems to be doing the job. |