Re: [CAD_CAM_EDM_DRO] Re: manual step generator

In a message dated 12/10/2002 5:24:06 PM Central Standard Time,
davemucha@... writes:

> I am looking for a circuit that I can use a pot to regulate that
> speed of steps. I'm looking for very low speed to very high speed.
> I want to test a set-up without having to go back and reset software
> each time.
>

AH! A 555 circuit with appropriate R and C components can do what you need
just fine! You should get yourself a copy of Don Lancaster's "CMOS
Cookbook". It has LOTSA "how-to" for such, and charts and formulae for
figuring rates with the 7555, etc.


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