Re: DIY CNC Machine How Hard Can It Be?

On Jun 18, 8:44 pm, Fred Abse <excretatau...@xxxxxxxxxxxxxxxxx> wrote:
On Sun, 17 Jun 2007 17:02:02 -0700, linnix wrote:
On Jun 17, 3:47 pm, D from BC <myrealaddr...@xxxxxxxxx> wrote:
[quoted text muted]

Well, motors are like cavemen. They are not so smart. For a stepper,
there are four coils and you have to turn on A-C for n micro-seconds,
then B-D for another n micro-seconds. You have to keep doing that
until you reach the target. How you find the target is the difficult
part, usually machine visions or some other feedbacks.

You don't want steppers for CNC. They put steps in the work. Slopes and
curves come out all rough.

Depends on what you want. In my case, all my holes are precisely
spaced and lines are straight. I don't need or want curves, not for
my current project.


Nobody "in the business" uses steppers.

I guess many precision tool makers are not "in the business". That's
why I can't buy the right tool. They keep telling me what I want is
not what I want.


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