Re: L298 goes boom on my camtronics :(

Hi Tauseef,

I put a switch on each axis for my driver/PS box (Gecko's). I generally
leave 'A' off, and occasionally leave 'Y' or 'Z' off. You might want to
consider a SPDT switch for 'A', and a 3PDT for X, Y, Z.

Alan KM6VV

tauscnc wrote:

>
> Hey rich,
> Yeah, its J4 on the single axis board. I was just wanting to put one
> switch for all 4 axis so when flipped all 4 axis would be "free" (J8
> for 3 axis, J4 for single axis). From what I understand the single
> axis is/can be a stand alone but I am sure Dan can comment more on
> this. The only thing I have noticed it lacks from the 3 axis board
> are the 2 LEDs. I am not sure what the "DS1233" is but there is no
> chip on the single axis board that matches those numbers. The only
> thing I take off of the 3 axis board is +5 volts. The rest is
> connected as the 3 axis board. You can connect it "through" the 3
> axis but I did not understand at that time how to/ did not want to
> burn anything out, so I hooked it up more "independently."
>
> later
> tauseef
>
> --- In CAD_CAM_EDM_DRO@y..., RichD <cmsteam@s...> wrote:
> > Taus,
> > I don't understand why you are mixing J4 & J8.
> > Or, is this J4 on the single axis board?
> > Does the single board have it's own DS1233 or share the one on the
> 3 axis?
> > RichD
> >
> > tauscnc wrote:
> > >
> > > Hey Rich,
> > > no, I didn't unplug any stepper (did do that accidently once but
> was
> > > luckly!). I was using the "jumpers", J8 and J4 on the 3 axis and
> > > single axis board and connecting a switch to it. Instead of
> > > connecting 2 switches independently, I conneted one pin from J4 to
> > > J8. Other pin of J4 to J8 and then a switch from J8. When "on" it
> > > would connect J8 and J4 so technically all 4 axis should be free
> > > wheeling. Guess I learned something! Don't connect them, use two
> > > different switches.
> > >
> > > Wonder if I should also replace the L297 as afogassa found out.
> Well
> > > will wait for Dan and see what he says.
> > >
> > > Acutally, the more I think of it, I really don't need the 4th axis
> > > since I don't have a 4 axis CAM program and I plug it into Y axis
> > > anyway. Maybe I will just get another single axix one (fix the
> other)
> > > and use those 2 for the lathe. Well will see.
> > >
> > > thanks
> > > tauseef