Re: Step Pulse Timing Question

--- In CAD_CAM_EDM_DRO@egroups.com, ptengin@a... wrote:

> In a message dated Fri, 13 Oct 2000 8:01:12 PM Eastern Daylight

Time,

> "Mariss Freimanis" <geckohall@h...> writes:
>
> << Hi,
>
> Is someone thinking of writing a Win 95/98/2K GUI and a motion

control

> package that would have external harware or a PCI/ISA slot board?

Cost would

> be less than $30 an axis and would be modular, including general

purpose I/O.

>
> Mariss
>
>
> Mariss,
>
> I am one of the semi commercial guys on the list. A good, easy to
> implement, reliable, versatile and fast/smooth control package

would be a

> dream come true.
>
> I currently use several, one brand I am not happy with the quality

of the

> software. Accel, decel and look ahead are not what it could be. The

other

> package I have has very nice software and hardware, the cost is

enough to

> cause a heart attack.
>
> If you can create a nice "open" package with a GUI etc, plug and

playable

> out of the box, I'm sure many on the list would jump for it. That

along with

> your Step/servo drives and it would be awesome. Inputs for limit

switches,

> general pupose inputs for pallet clamp confirmation etc, outputs

for

> spindles, coolants, misc automation etc.
>
> I wish it would have a pre-opto isolated, pre cabled I/o card that

can be

> dropped into a drive cabinet. The other end would be an ISA/PCI

card.

>
> I wish the software would support more than 4 axis and possibly

more than 16

> or more I/O's.
>
> Most importantly, It would be a look ahead type software for those
> "bazillion" short segments found in 3D surfacing.
>
>
> Now, if it cost $400 ready to go, You'd conquer the world. IMHO
>
> Peter
> THRD, Inc.

I would never pay $400.00 for this. But if i could build for $100.00
or less i might me interisted. I am not here to throw money at
things to make them work. I am here to make a usable CNC at a low
cost. (just a comment nothing personal)

If somone could come up with a low cost interface from the computer
to the steppers, open source with documentation. I would be all for
making it a standard. Maybe CNC programs would have the option of
printer port output or "standard CNC I/O card" to cover everyones
budget. It would take quite a bit of discussion to determine what
was really needed, but it would be worth it.

Personaly i think it should be an external card because it would be
easy to make or sell. I think internal cards are supposed to be UL
or FCC approved or something. But external boards run from wall xfmr
has no regulation. External also has more possabilites like a BUS
for the ability to add...more axes...more I/O...micro stepper
control ...and things not orignally thought of.