Re: [CAD_CAM_EDM_DRO] Bandit schematics

A long loong loooong time ago I did service work on bandits in our
plant. One thing not to underestimate as a potential issue is the
keyboard assembly. Failure of the start pushbutton in the upper left
hand corner can lead to strange behaviour of the controller. Once I
learned that bit of infor I could save the company a lot of money by
changing out a $7 switch in a few minutes. Back then I believe a
keyboard repair cost between $250 and $300 an due to manual operation of
the controller that was a signiifcant expense.

I wish now that I had saved some of the documentation. Or for that
matter some of the hardware. Didn't think at the time that I even had
an interest.

Thanks
Dave

Michael Larson wrote:

>bob_durst_ksr wrote:
>
>
>>Does anyone here have schematics for the circuit boards in a Bandit controller. I've
>>searched the archives, but didn't find any.
>>
>>Specifically I'm looking for the driver board and the CPU board.
>>
>>I know that there are a number of places that will repair them, but I've got a EE friend
>>who's willing to work on them if he had the schematics.
>>
>>Thanks
>>
>>
>I don't have the schematics, but I just pulled the entire bandit control
>out of my mill, a wells-index cnc 700 that I'm converting to PC-based
>control. I was planning on throwing it away, but it sounds like you
>could use it. I don't know if this is the same model control- the one I
>have came in this big card cage and was installed by summit. I can read
>off the serial numbers if you want.
>
>Anybody else want parts of my control? I have the card cage, three
>stepper driver boards (minus heatsinks) and this other power switch
>board (also minus heatsink). Oh and the front panel but that's just
>switches and an LCD. Haha- and this really sweet ticker-tape
>keyboard/DNC :)
>Michael Larson
>
>
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