Sentences with phrase «exterior trowel»

Khoshnevis points out that the exterior trowel could be followed by a rolling die that prints a brick, shingle, or clapboard pattern in the wet concrete, while the interior could be painted using ink - jet technology in any color, or even in wallpaper patterns.

Not exact matches

The device is similar to rapid prototype machines, which have been used for about 15 years to print out three - dimensional plastic models, but the trowels «allowed a new degree of control on the exterior surfaces,» says Khoshnevis.