RE: [CAD_CAM_EDM_DRO] Re: Afraid to use my "Z"...not sure if stepper or driver is acting up...

When electronics engineers design things for temperature, they will do lots
of calculations and measurements.

Then the last resourt is always the finger test. If you can hold your finger
on the semiconductor (power it off if there is high voltage about), and hold
it there with out going ouch, then it will probably be OK in the field. A
small fan will make an enormous difference.



Dr. Mark Vaughan Ph'D. B.Eng. M0VAU

Managing Director

Vaughan Industries Ltd, reg in UK no 2561068

Water Care Technology Ltd, reg in UK no 4129351

Addr Unit3, Sydney House, Blackwater, Truro, Cornwall, TR4 8HH, UK.
Phone/Fax 44 1872 561288

RSGB DRM111(Cornwall)

_____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Mike Mueller
Sent: 07 July 2007 22:53
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Afraid to use my "Z"...not sure if stepper or
driver is acting up...



I thought I should have mentioned the heat...it was a good 80° or so
in my shop...I have the 3 Geckos mounted on an alum. plate that is
~18"x8"x.625" and it was pretty warm to the touch as was the Geckos.

Thanks, I'll try the fan and keep an eye on things.

Mike

--- In CAD_CAM_EDM_ <mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
DRO@yahoogroups.com, "Robert Colin Campbell"
<bob@...> wrote:

>
> Mike,
>
> It sounds like a heat issue. Make sure there is not accumulation

of dust or

> dirt around the Gecko drive. The next time, leave the power on

for about an

> hour before you do your test. If you can, run a fan directly on

the Gecko

> drive.
>
> Robert Colin Campbell
> Bob Campbell Designs
> www.Campbelldesigns.net
> Mach 2/3 breakout boards
> Relay boards
> Spindle Speed boards
> Stepper motors
> Plasma Torch Height control
>
> ----- Original Message -----
> From: "Mike Mueller" <mueller914@...>
> To: <CAD_CAM_EDM_ <mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>

DRO@yahoogroups.com>

> Sent: Saturday, July 07, 2007 2:59 PM
> Subject: [CAD_CAM_EDM_DRO] Afraid to use my "Z"...not sure if

stepper or

> driver is acting up...
>
>
> > Been using my BP Series 1 more in the last few days than I have

in

> > the last few years of owning it...last night while doing some

spot

> > drilling, the Z axis failed to move even though the turbocnc

screen

> > said "in motion"
> >
> > no noise at all from the Sigma stepper motor, upon doing an e-

stop,

> > I checked all the wiring and it was fine. I went into "jog" mode

and

> > motor wouldn't turn at first and then I did another command and

it

> > worked.
> >
> > did a few dry test programs and the Z would not move about 1/2

the

> > time it should have (up or down)
> >
> > today I jogged the Z with no issues at all for about 5 minutes in
> > different increments...worked flawless...
> >
> > What should I be testing??
> >
> > Gecko 201's...
> >
> > Thanks,
> >
> > Mike
> >
> >
> >
> >
> >
> >
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