"deruida" <deruida@...> wrote:
A good friend and fellow engineer and I want
to produce a medium sized cast iron 3 axis milling machine that will
be rigid enough for steel and fill the gap between the knee mills
and the cnc machining centers.
[That's an ambitious project! Are you doing the casting here in the US, or
offshore? What will it do that a knee mill won't? What will it lack that a
VMC has? I didn't know there was much of a gap there.]
We want to produce it with a machine
controlled variable speed spindle, but need a little advise on the
pros and cons of different methods. THANK YOU IN ADVANCE FOR
HELPING OUT A RELATIVE NEWBE. Dan DeRuiter.
[There's some fairly comprehensible info on VFD speed control here:
]
Andrew Werby
www.computersculpture.com
