Courtesy:Sri.Venkatraman
Asaari[Carpenter]. Thacchu sastram is civil Engineering. Some carpenters were diviners. They were asked to locate the place where to sink a water-well. Asarikkol is a measure. It is 28.25 inches = 72 cms. 24 virals = 1 kol.
The south-west corner is called Kannimoola. The first foundation stone is laid there.It is like the place of Kanni rasi in horoscope. The demolition of the building is done from the North -East corner[ Meena rasi].. In South Indian style of horoscopes the bottom right-hand side corner is Kanni rasi.-Some terms used by the carpenters[ Malayalam] Monthayam[ ridge-pole], Kunthakkal[ king-post], Kazhukkol[ rafter] pattika [ baten/reeper], uttharam [ beam], edavittam [joist] thazhvaram [ eaves] moolakkazhukkol [main rafter] Vala[purlin]. chintheru [ plane] Maram kadayal[ woodturning] Some carpenters are good woodturners. These days woodturning is done at lathes..Even planing and drilling are. done mechanically.Their whittling and cutting of wood is based on Pythagoras theorem. It is very difficult to work on warped wood. I had two kiliyatties[ bird-scarers] in my home.I showed them to a carpenter. He said these days there are no skilled carpenters to make them. It makes loud noise when rotated. I sold them to a collector of antiquities.
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