Re: Another Try

> Ahha vs. the Gecko , for my money as long as the stepper specs on
> the BP fall into the Gecko range you should be well able to put a
> nice electronics package together for $1000 less than the Ahha . If
> you like the software the board package seems fine . If you need
> higher current I don't know of another driver that is a micro
> stepper / chopper drive but often ebay has larger units.
>
>
> The best looking stepper setup I have seen so far in the
> experimenters area would be Jon Elson's universal stepper board and

a

> set of Gecko's running EMC.
>
> http://www.pico-systems.com/univstep.html
>
> This system does not get much mention but up and running should

kick

> butt. This would be a lot like the Ahha system except they use a
> card . This type drive uses a velocity command structure with
> hardware pulse generation. The system acts like a servo so when
> moving slow following error is maintained by closed loop position
> updates. When you need speed , high velocity commands can be output
> without the host having to twiddle bits at insane rates to do it.

If

> I had the machine to do I would love to try this as I bet it would
> really smoke.
>
> BSP

I think that is exactly what I am going to try and do. I'll let you
know how it goes... After all, I'll be into it for what $500.00 which
is inexpensive enough to not get too disappointed even it all goes
wrong.

Mark