Quote Originally Posted by ecat View Post
A customer in the US used pretty much this set up to level the jigs and platforms they built their aeroplanes on. .
Its not just in America they use Jigs

Quote Originally Posted by ecat View Post
We used ultrasonics to measure the level of 'water' in the connected 'buckets' to within a couple of mm, hydraulics did the actual movement. Why go to all this trouble? If nothing else, gravity can assist in measuring precise angles.
Its no trouble for me to do really, i was playing in the garden today and ive arrived at the design WITHOUT using a hose pipe of course
with the ban and all...lol it must have been all the usefull information i gathered from the post...lmao