Originally Posted by chucketn
Also, what is the easiest way to build the connecting rod? Can I not make the basic rod from 3/16 steel rod and have some one silver solder on a flat piece for the square end? I do not have facility to silver solder.
I have never made anything this small,or this complex.
That is a perfectly reasonable approach to the part. I would suggest that you make the flat piece oversize, and then once it is soldered in place you can chuck the rod in the lathe and face the flat bit to dimension, this will ensure that it is perpendicular to the axis of the rod, and will also shave off the crud that results from the soldering! If your chuck is easily removable, and you have the head-room in your mill , once you have faced the part, leave it in the chuck to sit it on the table of the mill or DP to drill the holes for the bolts that hold on the big end, and to bring the sides and ends down to size.
(That's just how I would do it, many other ways to skin this cat, no doubt.)