okay ... this is what you should know of how the things the ancients did :
chart.jpg 59.71K
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Its simple and effective and replicable
number one is getting irregular sides to match up, one end of the measuring stick guides the drawing the edge to be cut from the adjacent block
number two is sawing effectively, saw from B to a depth then the sides are chipped off with chisels or anything hard enough at A , rinse, dry and repeat, the saw start again to a deeper level then the chisels take over, chipping off the sawed edge, no limits to the size of the block that needs sawing
number three is showing that ONLY the touching sides needs to line up for precise placement, the center is left alone as long as it doesn't get in the way
now you may scale the stones up as big as you are confident of moving
~edit : update ... I got my A and B wrong on example number 2
corrected and I apologise
Is this how they did it ?
I don't know, but this is how it has been done
Edited by third_eye, 07 March 2013 - 08:44 PM.