Re: Stepper Controller

hey Alan :)

I just wanted some sort of cheap and quick control box to make so that
i could maby make a power feed system, I have DC power supplys and i
was hoping someone had a schematic for a "controller"(still not sure
if thats what it would be called).

I am really just starting in Machining, all i have is a lathe right
now and i still need alot of tools for it. I still need a mill and all
the tooling for it, not to mention all the skills and knowledge to use
all of this equipment properly, I was thinking that CNC was just a
little to much for now, although i love the thought of just hitting
the enter button and watch the machine spring to life!!

Thank you for you responses, my 21 year old head is trying to soak up
all of this newfound info!

Tyler Phillips

--- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> Hi Tyler,
>
> If I may comment, I'd get a L297/298 driver, even start with just 1 or
> two axis. Camtronics, can get you started. Gecko's are also a good
> choice.
>
> http://www.seanet.com/~dmauch/
>
> Then, you want a simple 555 timer circuit to make pulses, and a toggle
> switch for the direction line(s). Very simple. lets you spin the
> motor(s).
>
> Even better, IMO, would be a simple program (yup, a computer), to
> generate these pulses. The parallel port can be used to connect
> step/direction lines to the driver.
>
> Just out of curiosity, why no computer? Makes simple work out of
> developing pulses! And, when you later decide you'd LIKE to have the
> motors follow a program to cut parts (Gcode), then the addition of a
> controller program will be your next step.
>
> A "function generator" (audio square wave generator) can provide pulses
> (steps) for the motor drivers too, and they are often quite cheap. An
> 8038 function generator chip (used to be Intersil) can give you the base
> for a generating pulses also.
>
>
> Alan KM6VV
>
> powernob@h... wrote:
> >
> > Hello I am a new member to this group, and pretty new to the whole
> > stepper motor/cnc bizz, I was wondering if someone has plans to a
> > motor controller that doesnt need a computer, but rather could be used
> > as a power feed of some sort... you press a button it spins one
> > way(maby have a rehastat to speed or slow it down), press another
> > button makes it spin the other way, and maby a button to advance one
> > step at a time?
> >
> > Any info would be great! good group!
> >
> > Tyler Phillips