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原帖由 hispeed 于 2008-4-14 17:35 发表 7 r5 P9 i% q5 s- z
请问楼主:你链接中的文档中说,在执行NC ROUTE这项功能时,必须加一个设定档{ncroutebits.txt),不知写文中的内容时必须遵循什么原则否?铣刀都有哪些尺寸?
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4 j' Q- ?; a% R* s5 E该文件需自建,简单地按如下格式即可:
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' }' n1 u/ v5 a e7 l& s0.015 T028 Z$ W9 r: s! X! m( G$ q
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铣刀尺寸根据你的椭圆开口来定,相等即可,这就是a single line path吧;要不然你就打开.drl文件,找一个比椭圆开口小的刀具,这样就是现成的了,省得你自己写得太小板厂加工不了或多收费用,这就是an oval path。分别对应以下Oval Slot里说的两种方法。
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原文帮助里阐述:
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When NC Route routes oval and rectangle slot holes, an appropriate tool is chosen from ncroutebits.txt using the following guidelines:, o8 f, M1 v4 E
- Rectangle Slot: a tool size smaller than the minimum dimension of the rectangle must exist to route a rectangle path with appropriate Excellon tool compensation.
- Oval Slot: a tool size that exactly matches the minor dimension of the oval must exist to route the oval as a single line path. Otherwise, a tool size smaller than the minor dimension must exist to route an oval path with appropriate Excellon tool compensation., U1 _; f7 ^) r6 R. Y
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