Sunday, April 23, 2006

Home Accents


Making judgments of value requires a basis for criticism: a way to determine whether the impact of the object on the senses meets the criteria to be considered art, whether it is perceived to be ugly or beautiful. Perception is always colored by experience, so a reaction to art as 'ugly' or 'beautiful' is necessarily subjective. The Framed Art is used as home accents.

Because of its elusive nature, "good" art is not always, or even regularly, appealing. In other words, it does not have to be "nice-looking", and often depicts terrible images made for social, moral, or thought-provoking reasons. Coat Hangers are used for home decorations.

Countless schools have proposed their own ways to define quality, yet they all seem to agree in at least one point once their aesthetic choices are accepted, the home decorations, value of the work of art is determined by its capacity to transcend the limits of its chosen medium in order to strike some universal chord (which, oddly enough, tends to be the most personal one).

Wednesday, April 19, 2006

Air cylinders

A collet is a sleeve with a cylindrical inside and a conical outside. The collet has kerf cuts along its length to allow it to expand and contract. A threaded section at the rear of the collet is used to pull it into a matching conical socket. As the collet is pulled into the socket, the collet will contract - gripping the contents of the inner cylinder. Collets are most commonly found on milling machines, lathes, wood routers, and precision grinders. Collets can also be obtained to fit Morse or Brown and Sharpe taper sockets.

Typically collets offer far higher levels of precision and accuracy than self-centering chucks, and have a far shorter setting up time than independent-jaw chucks. The penalty is that most collets can only accommodate a single size of workpiece. An exception is ER collets which typically have a working range of 1mm. Air cylinders or collet chucks are made to hold cylindrical work, but are available to hold square, hexagonal or octagonal work pieces.