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Allegro NC Drill
录入：edatop.com 点击：
Allegro 16.3 执行NC Drill 后，查看viewlog，有一行警告：WARNING: Design precision is the same as that of the drill output file data. Data rounding errors may still be possible.
viewlog内容如下：
(---------------------------------------------------------------------)( )
( NC DRILL Log )
( )
( Drawing : #Taaaaaa03520.tmp )
( Software Version : 16.3p003 )
( Date/Time : Wed Apr 13 17:00:41 2011 )
( )
(---------------------------------------------------------------------)
Processing NC Parameters file ...
NC PARAMETERS
-------------
FORMAT 2.5
MACHINE-OFFSET x:0.000000 y:0.000000
FEEDRATE 1
COORDINATES ABSOLUTE
OUTPUT-UNITS ENGLISH
TOOL-ORDER INCREASING
REPEAT-CODES YES
SUPPRESS-LEAD-ZEROES NO
SUPPRESS-TRAIL-ZEROES NO
SUPPRESS-EQUAL NO
TOOL-SELECT NO
HEADER none
LEADER 12
CODE ASCII
SEPARATE NO
OPTIMIZE_DRILLING NO
ENHANCED_EXCELLON NO
SCALE 1.000000
WARNING: Design precision is the same as that of the drill output file data.
Data rounding errors may still be possible.
Drill files being output to directory 'E:/Projects/Cadence/bysj/Signal_conditioner' ...
'SIGNAL_CONDITIONER-1-2.drl' created for holes connecting TOP and BOTTOM
------------------------------------------------------------------------
Num Size +/- Tolerance Plating Quantity
1. 39.3700 0.0000/ 0.0000 PLATED 134
2. 157.4800 0.0000/ 0.0000 PLATED 4
---- Total holes: 138
---- Total head travel: 8.02 feet (2.44 meters)
哪位解释一下是为什么?导出的钻孔文件.drl导入cam后，所有钻孔的面积比top和bottom层大很多！
回复 luolicheng001 的帖子
但是我在NC Drill的时候就出这个警告 不明白的是 设计精度和钻孔输出文件数据一样 为什么还是警告呢?
～～FORMAT 2.5 , 但去上課時，原廠都建議設為 3,5
回复 penny190 的帖子
嗯嗯，谢谢，改成3.5合适了，非常感谢！但出现一个新的问题，我的孔径是1mm，但导入cam为什么只有0.2 ?
