Building The Steven's Favorite

[TomG]

The frame for the sight turned out to be fairly involved so I took a few more pics of the process:



It's in there.




Squared up and sized for width, with extra stock on the ends and the thickness for the rotary table work.




The 1" radius belt sanded on one end.




Roughing out the blade thickness.




Blade finished to size.




the 1/8" pivot hole reamed to size and ready to be set up on the rotary table.




This is the method I use to center the rotary table on the spindle. I made a snug fitting plug for the center of the table with a snug fitting hole in the center for a 3/8" dowel. With the dowel chucked in a collet, it is inserted in the plug to center the table, the DRO is zeroed out and the table bolted down.




The same process is used to center the part. With the rotary table centered on the spindle, a 1/8" pin is held in a collet and the part placed on it, then the angle plate is clamped to the part and then bolted to the table. The part is then indicated parallel to the X axis and the rotary table zeroed out.




The part was then counterbored with the end mill and the profile milled. Then the part was flipped and the other side was counterbored.




The holes for the detents, a spring and two balls, being drilled.




Assembled and partially polished.




All that is left is the thumb nut for setting the windage, the #1-72 threaded rod that it rides on and the base.