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我就是你嘴里的2b。下面是国外论坛上的，你个卖usb卡的试试看这行代码：G31 Z-1 F100- q6 p3 n& C: \) m. h8 a( O
( b, W( e0 P9 x( z/ l/ s/ Q+ R: p/ qPostby stephan » Wed Sep 26, 2018 5:39 am [size=1.3em]Just wanted to add a little bit of info to this thread, given that my issues with aircuts and probing on a USB cnc mill (6040z) on Mach3 led me here.
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What I've noticed is that "G31 Z-1 F100" sometimes ignores the probe contact and crashes into my PCB  . To resolve this issue I just had to increase the probing depth, i.e. "G31 Z-5 F100". Once I made this change the over-probing and crashing was resolved. It appears that the USB controllers for these chinese cnc machines act weird if the G31 command limit (i.e. Z-1) is not far enough beyond the workpiece/PCB/Probe. Whether the #2002 variable was saved properly is not something I checked for.5 A' E# p8 X2 L4 W4 o+ a: j1 E) E
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Another note to add, start the variable count at #601, as #601-#999 are reserved for user variables in Mach3.
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' R+ ?: K/ K, pAlso, make sure you have high quality bits. This will also help resolve aircutting issues, as the cheaper V-shaped engraving bits (from eBay or Amazon) tend to bend or break during the milling process. A small ball or square end mill produces much more reliable results. I personally use Melin Ball End mills, at sizes 0.016" and 0.009"., y, S* E* `3 i% b
9 P( i) Z- f8 o; D8 k3 D3 O" l! yHope this helps someone else out there with a similar issue.  5 u# w7 P- y H& _9 z
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楼主: henahuchangwei
发表于 2021-1-3 14:15:54
