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Our goal in this work is on one hand to explore and populate the space of computationally enhanced craft activities for teaching and learning design; and on the other hand, to develop interaction techniques appropriate to the domain and the intended users. We aim to exploit characteristics of specific design domains to build relatively simple special-purpose modeling tools that novice users can easily and quickly learn. The computational design environment can help a designer by building in some requirements of the manufacturing method (e.g., the method of joining parts and sizing of joint features) as well as circumscribe the design. | UK COOPERATIVE EXTENSION SERVICE I UNIVERSITY OF KENTUCKY COLLEGE OF AGRICULTURE I HF-LRA.048 CARE OF FURNITURE SURFACES Furniture especially new quality pieces can be a major investment a fantastic find at a flea market or a wonderful discovery in a relative s attic. Any of these pieces of furniture will provide a lifetime investment for beauty and enjoyment as well as function. Furniture finishes vary from soft oil finishes to hard finishes including opaque painted finishes clear finishes lacquer shellac varnish and those containing polyurethane. It s important for you to know the type of finish in your wood furniture in order to properly care for it. Remember that it s the finish you are cleaning not the wood itself. If you are in doubt about the type of finish try the following tests in an inconspicuous part of the piece. Test for an oil finish by rubbing a few drops of boiled linseed oil into the wood. If it absorbs the wood has an oil finish. If it beads up the wood has a hard finish. To identify which hard finish rub acetone over a spot in a gentle circular motion. Lacquer will dissolve in 30 seconds under gentle circular rubbing. Varnishes and shellacs will turn to a sticky gel-like substance after a minute or two. Polyurethane polyester finishes will shed acetone like water. A shellac can be distinguished from a varnish because shellacs will dissolve quickly in denatured alcohol while varnish will react more slowly. After you have decided which finish is on your wood furniture then you re ready to use the appropriate procedures for routine and special maintenance. For All Finishes. Dust several times a week in order to maintain a clean surface and protect the finish from soil build up. Use a clean lint-free absorbent cloth for general dusting. Protect all wooden furniture from direct sunlight. Exposure to the sun s rays can dry out the wood and actually bleach out the color. Avoid both extremely moist or dry air. Use a humidifier or dehumidifier when .