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| 原帖由 hispeed 于 2008-4-14 17:35 发表 ![]() . ]) g- E3 A8 `, O& P  l- i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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 0.015       T02- Y" p) H. p$ F" l. z6 U
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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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 ! X: m% p, S2 M; ?4 W7 N1 ]9 yWhen NC Route routes oval and rectangle slot holes, an appropriate tool is chosen from ncroutebits.txt using the following guidelines:
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 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./ }$ Q1 t. J+ \  ^: n
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