"If you're thinking of writing your own controller software and hoping it's more reliable than open source or commercially available products, you're truly out to lunch."
WORDS OF WISDOM FROM LINUXCNC:
Ｔｈｅ ａｕｔｈｏｒｓ ｏｆ ｔｈｉｓ ｓｏｆｔｗａｒｅ ａｃｃｅｐｔ
ａｂｓｏｌｕｔｅｌｙ ｎｏ ｌｉａｂｉｌｉｔｙ ｆｏｒ ａｎｙ
ｈａｒｍ ｏｒ ｌｏｓｓ ｒｅｓｕｌｔｉｎｇ ｆｒｏｍ ｉｔｓ ｕｓｅ．
Ｉｔ ｉｓ ＥＸＴＲＥＭＥＬＹ ｕｎｗｉｓｅ ｔｏ ｒｅｌｙ
ｏｎ ｓｏｆｔｗａｒｅ ａｌｏｎｅ ｆｏｒ ｓａｆｅｔｙ．
Any machinery capable of harming persons must have
provisions for completely removing power from all
motors, etc., before persons enter any danger area.
All machinery must be designed to comply with local
and national safety codes, and the authors of this
software cannot and do not, take any responsibility
for such compliance.