Cutting the lug shape is already a lot of work, I would purchase the blanks. If you make your own you have to a) thin the 0.058 tubing on the lathe; b) mitre it; c) weld/braze; d) clean the braze/weld; e) finish the though hole (unless you have a mill as in post #4 ); d) shape the sockets and f) repeat three times. I've done it once... won't do it again in the near future.