Re: My stepper getting hotter

Maris;
I found out that my power supply has two output. one is 65 and the
other is 35v. I am running my stepper at 35v now and they works
great. they are not hot any more. I am running a sherline so I do not
think I need much power so 35v is ok.

--- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> Luis,
>
> You are wanting two opposite things; a cool motor and lots of
speed.
> You can't have both. Step motors are designed to run hot (85C) when
> they are used with a power supply voltage needed to generate
maximum
> speed. That is why they have teflon wire insulation instead of
vinyl.
>
> Your motor probably has reached its maximum temperature in 45
> minutes. If you can keep your hand on it for 10 seconds then it is
> not too hot and is operating properly.
>
> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., "luisguillermo98"
<luisguillermo98@y...>
> wrote:
> > they are 4 wire and I think I do not need to run them that fast
so
> I
> > am wondering if there something to low the voltage.
> >
> >
> > -- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...>
wrote:
> > > Luis,
> > >
> > > That is a good thing, it means the motor is putting out real
> power.
> > > It is not good if the motor case gets hotter than 85C.
> > >
> > > Is your motor a 6-wire or 8-wire motor? If it is and if you
have
> > more
> > > speed than you need, re-wire your motor for full-winding
operation
> > > (for 6-wire motors) or series for an 8-wire motor.
> > >
> > > If you do, set the current to 2 Amps on the drive. The motor
will
> > be
> > > much cooler but your maximum speed will 1/2 of what you get now.
> > >
> > > There is no easy way to reduce power supply voltage.
> > >
> > > Mariss
> > >
> > >
> > >
> > > --- In CAD_CAM_EDM_DRO@y..., "luisguillermo98"
> > <luisguillermo98@y...>
> > > wrote:
> > > > Hi guys;
> > > > Finally my geckos are running. My stepper almost fly without
> lose
> > > any
> > > > step. but I notice that the steppers are getting hot after 45
> min
> > > and
> > > > I am wondering if there is a way to reduce the voltage of my
> > power
> > > > supply. It is 65v 4am and I would like to reduce it to 48v.
Is
> > > there
> > > > anything like a voltage reducer or some like that and keep
the
> > same
> > > > amperes output (4am)?