> And look on the net for drivers.I will not buy a kit/module for stepper control!
>
> the linistepper seems a board that fits our group nicely.
> also, check the Allegro A3977 chip. very simple.
>
> Dave
>
But i would have these four STK6982 Drivers...
They must be suited to drive these motors (they did it before).
Unfortunately they are a bit old... and the only datasheet i get is
japanese...
They have current limit, and high drive voltage.
I just found the second pritner control board..
on this board the 2 drivers are still in place (i took parts from the
other).
the rest of the circuit is intact..
i hope to be able with the pictures in the japanese datasheet and this pcb
to find out more...
i have a pinout too...
But i have still no idea if they are chopper mode, or not..
(there are strange pictures in the datasheet...)
If you want to take a look...
http://service.semic.sanyo.co.jp/semi/dis_pdf_j/STK6982.pdf
prepare your japanese reading ;-)
I read the jones document again, decided microstepping is not needed now...
but high voltage drive is needed, thus current limit required.
I don't insist on chopper....
stefan