RE: [CAD_CAM_EDM_DRO] Re:low cost stepper driver

> I connected my first steppers, ran the machine for about a month, then had

a

> catastrophic failure. I replaced the motor and gecko and it worked for 2

years

> after that.
>
> my second machine had the motors connected for about a year
>
> my rhetorical question is why would anyone attempt to disconnect a motor
> from a powered circuit ?

Newbies playing with their new toys.

Hook up motor, doesn't spin, swap leads, doesn't spin, swap leads...

Eventually you'll blow the driver. Most (all?) of the cheap drivers (even
the low-end Geckos) don't have protection against this.

As you say it won't happen much in real life, but there is always the
possibility of a lead coming out due to vibration or being bumped by
accident.

Tony