Quote Originally Posted by GTJim View Post
Are you thinking of using these to get your rails straight?
I already have a 1200mm long straight edge
It is enough to messusre my machine (1800mm long, 1160mm wide) between left and right sides.
For the distance of 1800 i will use the same straight edge in parts
If the above solution is reliable it will make my life easyer about messuring the flatness of 1800mm long rails
It is just a thought and i ask if somebody has an opinion about this
I dont think i am the first that has this idea
For me it sounds logical that it will work, unless i miss something