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原帖由 hispeed 于 2008-4-14 17:35 发表
: E9 p! h" K( E! W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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5 `2 K8 \5 a) R3 q% J: ?4 t/ b" X6 }该文件需自建,简单地按如下格式即可:9 H! _1 _& O0 W3 ~; d4 ?; ^/ @5 G
0.020 T01
h# H; Y' i2 M! }; o: \' @4 F0.015 T027 \0 S3 q$ `/ b# e, Q4 Q, j% Y
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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。9 X4 I$ X3 e2 D$ C# g
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& x# Z+ x( l8 P4 J7 P/ e原文帮助里阐述:& c& m- W9 [3 O2 C- h+ v
* V7 b f7 a$ ]9 MWhen NC Route routes oval and rectangle slot holes, an appropriate tool is chosen from ncroutebits.txt using the following guidelines:+ B3 h1 G: O. s$ U
- 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.( X( h9 f) u9 f
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