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原帖由 hispeed 于 2008-4-14 17:35 发表 ![]()
: h3 N) B H' @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? 2 z, ^: n% i+ \
; }1 a/ `! d3 Q; I! C; |9 ]+ z该文件需自建,简单地按如下格式即可:/ @* h8 [% X% j7 O
0.020 T01 N2 y: b! h( W% }6 E/ o
0.015 T02
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3 \! N, ~, {$ s N( g- y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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. m( c2 H# U( g3 t' g原文帮助里阐述:
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, G h+ z6 G; S. I. ~$ xWhen NC Route routes oval and rectangle slot holes, an appropriate tool is chosen from ncroutebits.txt using the following guidelines:
5 B/ ^1 A9 x' D" v- 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.% C7 P% F% v( M# y( }2 n
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