Re: LPKF 2d drill

Hi Karen,

Yes, LPKF makes some interesting equipment! What I'm after, is the
stepping sequence for a 5-phase motor. Can you supply a URL to this
data, or would you be willing to describe sequence?

I believe that LPKF Z axis can "float" over a PCB, is this true? I'd
like to see if something like that is adaptable to the Sherline mill.

I and I'm sure others would like to hear more about your conversion
program!

Your solenoid control is novel!

Thanks,

Alan KM6VV



Karen wrote:

>
> You mention that you have the original control box for the LPKF.
> Would you be willing to take pictures of it and/or sell it? I have an
> LPKF ColorCAM. A big thing it is. Took two people to move it. I got
> NO electronics. I've been buying the parts one at a time. The hardest
> part was the spindle. I had to buy a controller for the spindle that
> came with mine. Do you have the spindle control electronics? Would
> you be willing to sell them? I am always looking for LPKF parts and
> pieces as well as more information on the ColorCAM machine. Please
> let me know. Thank you.
>
> Btw, I am currently working on a conversion program for LPKF machines
> that is written in visual basic and can drive 2 phase and 5 phase
> steppers as well as several servo motor drivers/motion controllers. I
> even found a way to use the solenoid Z axis as a linear motor using a
> PWM circuit and the varying inductance of a varying amount of iron in
> the solenoid (position of plunger) through the use of a seperate low
> power carrier frequency. After all the drill bits I was breaking, I
> decided there had to be a better way to program the solenoid with
> accel/decel curves. It all works from a parallel port too. Four
> output lines go to the X & Y steppers, two lines go to the limit
> switches all wired in parallel as well as the spindle down limit
> switch, and two lines tell the programmable solenoid to either mill
> or drill. The servo version uses the serial port. Complicated to
> build one, simple to build many. I have several more months of
> debugging and research until completion, but at least I'm not bored ;)
>
>
> > I think I still even have the original control-box sitting
> > out in the blue shed....if the squirrels haven't eaten
> > it, that is...<g>.
> >
> > good luck with it!
> >
> > Richard
>
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