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Dolly (tool)
A dolly is the name given to a category of tools used in shaping sheet metal. In general, a dolly is a solid piece of metal, small enough to hold in one hand, with a curved or shaped face. Generally a dolly will have more than one surface, each with its own radius of curvature (much like a three-dimensional French curve), allowing the craftsman more flexibility in using the tool. Common types Most common types are called heel, toe, wedge or comma, general or track, and egg dollies. Egg dollies are often not included in hammer and dolly sets, but due to their unique shape they are very handy. * Heel dolly: Has a long radius on one side and a flat on the other, hence they look like the heel of a shoe. One face is domed and that other is flat. * Toe dolly: Has a short radius on one side and is twice as long as the heel. Similarly it has a domed and flat side also. * Wedge dolly or "''Comma''": It looks just like a comma, the narrow side makes it ideal for tight contours. * General ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Curve
A French curve is a template usually made from metal, wood or plastic composed of many different segments of the Euler spiral (aka the clothoid curve). It is used in manual drafting and in fashion design to draw smooth curves of varying radii. The curve is placed on the drawing material, and a pencil, knife or other implement is traced around its curves to produce the desired result. They were invented by the German mathematician Ludwig Burmester and are also known as Burmester (curve) set. Clothing design French curve physical templates are regularly used for original high fashion design and by home sewists (along with other types of artisans) most usefully in necklines, sleeve, bust and waist variations. The varied curve radii allow for smooth and stylish personalized adjustments of standard purchased clothing patterns for an excellent, personalized fit. Fashion designers and sewists may use a selection of french curves, hip curves, straight edges and L-shaped right angle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
