Thanks guys , i think you are right Lil Giants . i may remake those cylinders as they are 4140 drilled and reamed so one of them has not got the finish i would really like And it heavy ) - i tend to over strengthen things a little
. So maybe resize the cyls is an option .
Yes Jim ,, well sort of , i am a bit lazy for having taken pics along the way , but here is a video of the finishing contour pass of the bottom of the links , It is an old machine , but when it was working was lots of fun .
https://youtu.be/Nob_dIiwMaE