Quote Originally Posted by Frank S View Post
There is a way to do this just like the 3 plate lap but for that you need 5 cylinders 2 of which needs to be longer than the 3 and clamped together on laying flat on the slab while you use the 3 to lap against the ends of each other while laying in the v of the 2 longer cylinders. It helps if the 2 longer cylinders have a machined relief in the center of them to allow the lapping compound a place to go that will not contaminant the cylindrical surfaces of either the cylinders having the ends lapped or the 2 cylinders being used as the straight V" surface
-Thanks Tony, TM51 and Frank for suggestions and corrections. I found the video more food for my thoughts than a pure how-to.
Also - your suggested machining and measurement methods are truly appreciated.
Frank's lapping method will probably come to use after end cutting/ grinding/ relieving.
Now I've just gotta sit on my hands waiting for the scrap yards/ service shops to open after all these holidays...

Cheers
Johan