m too. One that fits.
John
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: April-07-20 10:04 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Gecko Failure
>
> On Tue, 7 Apr 2020 at 17:42, John Dammeyer wrote:
&g
On Tue, 7 Apr 2020 at 17:42, John Dammeyer wrote:
>
> I'm going to take it apart one more time I think and remove the solder and
> resolder the two pins with the crystalized overheated solder joints.
> Although it might also be better to leave well enough alone.
I think I would be tempted to d
systems.com]
> Sent: April-07-20 8:38 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Gecko Failure
>
> On 04/06/2020 06:16 PM, John Dammeyer wrote:
> > Then cover back on and all together into the machine. The Z axis works
> > perfectly. The dr
On 04/06/2020 06:16 PM, John Dammeyer wrote:
Then cover back on and all together into the machine. The Z axis works
perfectly. The drive doesn't get any warmer than it did before. As in I can
hold my hand on the heatsink and it's barely warm. The connector also does not
feel warm nor do th
Many die cast items of the 1940's back to the introduction of the process
suffered from "tin pest" where just sitting around at room temperature they'd
crumble over time. The right balance of metals in the alloy made it stable.
Same goes for solders. Lead made the casting alloy and solder melt a
in, remove the solder from the two badly pitted
joints and re-solder them since they are now suspect.
Thanks for everyone's comments.
John
> -Original Message-
> From: Jon Elson [mailto:el...@pico-systems.com]
> Sent: April-06-20 3:42 PM
> To: Enhanced Machine Controller
On 04/06/2020 03:36 PM, John Dammeyer wrote:
I have a Raspberry PiZeroW reporting this:
T=15.6C,RH=55.0%,DP=6.6C And yet I've had more surface
rust on everything this year than over the last 10. Go
figure. There shouldn't be any moisture condensing on
anything with a dew point at 6.6C. And yet
> -Original Message-
> From: Jon Elson [mailto:el...@pico-systems.com]
> Sent: April-06-20 1:24 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Gecko Failure
>
> On 04/06/2020 11:43 AM, Peter C. Wallace wrote:
> >
> >
> > The
On 04/06/2020 11:43 AM, Peter C. Wallace wrote:
The general problem with Tin connectors is that they have
a positive feedback failure mechanism if used anywhere
near their current limits, their contact resistance rises
over time and heat exposure and the higher the resistance,
the high the
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: April-06-20 1:15 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Gecko Failure
>
> On Mon, 6 Apr 2020 at 21:07, John Dammeyer wrote:
>
> > I checked and from
On Mon, 6 Apr 2020 at 21:07, John Dammeyer wrote:
> I checked and from Pheonix any sort of gold flash isn't available. They are
> on 6mm spacing and although installed as a 12 position I can cut and remove
> only the 6 on the LHS. But what to replace them with?
Maybe a soldered-in cage-clamp
..@dreki.de]
> Sent: April-06-20 12:43 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Gecko Failure
>
> Gentlemen,
> tin happens to stand near to the transition metals in the periodic
> system and thus tends to slowly turn from metallic (conductive) to
>
wrote:
Date: Mon, 06 Apr 2020 11:27:23 -0500
From: Jon Elson
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Gecko Failure
On 04/05/2020 11:24 PM, John Dammeyer wrote:
Anyone ever run into this sort of thing
> From: Marcus Bowman [mailto:marcus.bow...@visible.eclipse.co.uk]
>
> This is interesting, for two reasons:
> 1. I had two Geckos fail last year, after 10 years or so running at 78 volts.
> The Gecko pins were not burnt, but I did burn a pin on a
> heavy duty 5 pin XLR connector, twice on the sa
On Mon, 6 Apr 2020, Jon Elson wrote:
Date: Mon, 06 Apr 2020 11:27:23 -0500
From: Jon Elson
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Gecko Failure
On 04/05/2020 11:24 PM, John Dammeyer wrote:
Anyon
This is interesting, for two reasons:
1. I had two Geckos fail last year, after 10 years or so running at 78 volts.
The Gecko pins were not burnt, but I did burn a pin on a heavy duty 5 pin XLR
connector, twice on the same connector.Gecko combination.
2. I suffered intermittent failure on one axi
On 04/05/2020 11:24 PM, John Dammeyer wrote:
Anyone ever run into this sort of thing with a G213V driver?
http://www.autoartisans.com/mill/G213V-Failure.jpg
It was running the Knee with a 1200 oz-in motor and 60VDC power supply.
Typical result of a high-resistance connection getting hot.
And
Thanks everyone.
The invoice for this drive is dated 07JUN2011. The drive was in use for most
of that time with the step/dir from an extra ELS I had around. Saved cranking
up/down with a handle that didn't fit well.
Last spring I started on the CNC conversion and I have a photo from mid Apri
I agree, however I wonder how long you have to wait until the Phoenix
connector rises again??? ;-)
And perhaps it needs to be further burnt to complete "ashes" ??
Perhaps a call to the Phoenix connector support hotline is in order?
;-)
Dave
On 4/6/2020 9:58 AM, andy pugh wrote:
On Mon, 6
John,
On 2020-04-05 21:24, John Dammeyer wrote:
Anyone ever run into this sort of thing with a G213V driver?
http://www.autoartisans.com/mill/G213V-Failure.jpg
This is typical for poor connection in environment with mechanical
vibrations as in CNC. Gecko driver itself has nothing to do with i
On Mon, 6 Apr 2020 at 14:22, Todd Zuercher wrote:
>
> I've seen Phoenix connectors fail similarly on step motor drives. But they
> usually went noticeably intermittent long before they looked quite that bad.
I wonder if that is a real or fake Phoenix connector?
--
atp
"A motorcycle is a bicycl
On Mon, 6 Apr 2020 at 14:55, andy pugh wrote:
> I wonder if that is a real or fake Phoenix connector?
I suppose you will know if a new connector arises from the ashes.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, d
I've seen Phoenix connectors fail similarly on step motor drives. But they
usually went noticeably intermittent long before they looked quite that bad.
Sent from my Verizon 4G LTE smartphone
Original message
From: John Dammeyer
Date: 4/6/20 12:25 AM (GMT-05:00)
To: "'Enhanc
I'd contact Geckodrive and send them that picture.
Dave
On 4/6/2020 12:24 AM, John Dammeyer wrote:
Anyone ever run into this sort of thing with a G213V driver?
http://www.autoartisans.com/mill/G213V-Failure.jpg
It was running the Knee with a 1200 oz-in motor and 60VDC power supply.
John
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