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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Setting angles of a compound using laser pointers
Hello Gentelmans,
Some older lathes doesn't have an angle scale on a toolpost. It is possible to adjust the toolpost via laser pointer with or without colimating lens and some linear scale on e.g. spindle. Here's my document with calculation of residual systematic error. Suprisingly it is possible without much effort to get 1/6 deg accuracy. I couldn't find any error in calculus. http://tinyurl.com/6ntza http://tinyurl.com/55rhx Comments and corrections appreciated --Jack. |
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Jacek Zagaja wrote:
Some older lathes doesn't have an angle scale on a toolpost. Here's another approach that works well for me. http://www.metalworking.com/dropbox/Deg-Scale.txt http://www.metalworking.com/dropbox/Deg-Scale1.jpg http://www.metalworking.com/dropbox/Deg-Scale2.jpg http://www.metalworking.com/dropbox/Deg-Scale3.jpg Ted |
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