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原帖由 hispeed 于 2008-4-14 17:35 发表 3 |: W/ C' P3 j" ]
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? # [# V5 g D; n/ r
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该文件需自建,简单地按如下格式即可:
! j6 R' k; `& r/ r0.020 T014 z5 m7 m; T( B2 _" J5 V8 n. k* t
0.015 T021 k) T( m8 t4 \; R. x0 r
1 |4 w$ n" w" c1 N* K* c% P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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" d) R) {2 o/ l: v原文帮助里阐述:7 v1 c1 t7 {: [1 l. N, l# r
7 M5 a( Y$ R% eWhen NC Route routes oval and rectangle slot holes, an appropriate tool is chosen from ncroutebits.txt using the following guidelines:' N I# W7 N! G7 `) I
- 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.' ?7 {& Q, Z' H: P n0 |; K# v
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