Column

The Column is Imperial Red from India. As you can see in the photos, I drilled a hole in each end of the block of stone and glued in a shaft; this was then placed onto bearings with a V-belt turning the whole block at about 3rpm. I then cut down to a template. On the fist series of cuts I kept about 5mm high, and cut every 20mm, and then broke these peices off. The second pass I cut 1-2mm proud every 5mm. On the third pass I set the blade at the exact height and let the blade travel continously over the column (The machine has a worm gear drive for sideways movement).Then I placed the polisher in a cradle, and let it travel slowly (6 hours) over the column - once for each grit (50, 100, 200, 400, 800, 1500, 3000 and buff)

The Capitol is made from Buchan limestone. It has such a fine grain that you can shave it with a knife. But after 24 hours, like all dense limestones, it hardens with exposure to air. You then have to chisel off the top skin.


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Developed by Rossato Nicola
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