Myasthenia (my-from Greek Î¼ÏÎ¿ meaning muscle + -asthenia á¼ÏÎ¸Î­Î½ÎµÎ¹Î± meaning weakness), or simply muscle weakness, is a lack of muscle strength. The causes are many and can be divided into conditions that have either true or perceived muscle weakness. True muscle weakness is a primary symptom of a variety of skeletal muscle diseases, including muscular dystrophy and inflammatory myopathy. It occurs in neuromuscular diseases, such as myasthenia gravis.
Arbor. The arbor size is standard for each standard size miter saw. For 8-inch and 10-inch miter saws, the standard arbor size is 5/8 inch. Miter saws that are 12 inches require a 1-inch arbor. Retail miter saws are sold with an arbor and bevel. The bevel can be adjusted to cut wood at different angles.
Tom Boyer at work in the Foundation shop. Tom is using the Bridgeport mill. Behind the red tool box in the foreground is the Shopfox 14 x 40 lathe. To the right is the Nikon Comparitor and Starrett surface table. Behind the lathe is a Deckel pantograph mill.(Click on photo to view a larger image. milling machine differs from a lathe in that the part does not turn, rather it is mounted firmly in a vise or held to the mill table while a spinning cutting tool secured in the powered spindle is moved into the part. The most common cutting tool used is called an end mill.