Quote Originally Posted by SA MAKER View Post
This is a simple to build quick change toolpost that I have designed for my Myford And Maximate standard lathes I have not built this yet but will start soon If people are interested I will make the plans available on this site. I have tried to take the best features from various designs I have seen and intigrated them into this design.
QUICK CHANGE TOOL POST FOR MYFORD OR SIMILAR SIZE LATHES-isometric-1-block-mounted.jpg
QUICK CHANGE TOOL POST FOR MYFORD OR SIMILAR SIZE LATHES-toolpost.jpgQUICK CHANGE TOOL POST FOR MYFORD OR SIMILAR SIZE LATHES-tool-holder.jpg
Looks like a good design and worth pursuing, I can testify to the viability of round locating posts as I made one to a Model Engineer design about forty years ago and have used it ever since.

http://www.homemadetools.net/forum/d...8290#post68901
Yours does have the advantage of being two sided.