hi all i started with the concentric tonight put to blocs together then put them in me 4 jaw chuck and mad them 26mm in height the length of the blocks is 63mm once dawn to 26mm i then tined both edges and soldered the two together it did not mater if they where not level with etch other as the block's are 12.5mm thick and they need to be 9.5 thick once this was dun i then chucked up a block of aluminum in me 4 jaw then faced it off then i glued the block to that and fast it off when that was dun i heated the block up to un glue it i then put the aluminum block back in the lathe and faced it off a gane then drilled 5.7 then reamed it to 6mm to fit a 6 mm dowel then the bronze block had cooled dawn and i marked out the center the next thing to do is drill and ream the block but that will be tomorrow right pics
krv3000, proud to be a member of MetalworkingFun Forum since Feb 2012.