Upper portions of Vivekananda Mandapam

Upper portions of the Vivekananda Mandapam as vied from the rear.

Upper portions of the Vivekananda Mandapam as vied from the rear.

Jointing or Assembling

The process of jointing or assembling, according to traditional method, is quite interesting. It is not merely arranging one stone above the another, in plumb and in level, but it is something more. A special method adopted in this process is technically called 'tracing'.
 
In this, the first layer is laid strictly in level and in plumb. The second layer is placed above the first, perfectly in plumb and then the contours of the top of the first layer are traced with a 'timber tracer' on the bottom of the second layer, exactly copying the top of the first layer with all its undulations. After the tracing is done, by this way, the bottom face of the top layer is accurately dressed according to the line formed. Now the second layer is precisely adjusted on the first layer, vertically down, and thus perfect joint is effected. In order to get perfect precision, necessary extra margin is left on the undressed stone. This is also necessary for the application of the crowbars at the bottom, while moving or lifting the heavy stones. Otherwise the edges of the stones would get damaged. This is for horizontal joints.
 
As regards vertical joints, the same method of 'tracing' is adopted in respect of the vertical face of the adjoining stone. This ensures a very perfect joint and it is claimed that even a thin paper can not pass in between them.