Re: [CAD_CAM_EDM_DRO] Re: Looking for advice

Ron Ginger <ronginger@...> wrote:

>Servos are better, granted. However, I am working on
>a limited budget, and cannot afford them. I have to
>get started on a shoestring!

Define 'better'

There are probably millions of machines running day in and day out with
steppers. They work fine, they are completly reliable, they never loose
steps.

///??? They don't? My Bridgeport originally had steppers. An old Allen-bradley system with slo-syn steppers. The only thing reliable about it was if I exceeded 40 ipm on X and 20 ipm on Y it would skip and I could rely on it trashing the workpiece. Z drive board was fried so many times, I didnt even consider it as a 3 axis machine anymore. I'm sure there are systems that work fine. As long as the feeds are kept at very low rates. The difference between servos and steppers is like night and day. ///Ron

They are simpler to build and usually cost less.

They just make parts and and make money for people.

ron ginger





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