On 12/27/2015 10:42 PM, Chris Kelley wrote:
> There's now one more LinuxCNC waterjet in the world. Retrofit of a c. 2000
> Flow Waterjet, 4' x 4' cutting area and a 40K psi intensifier.
>
> This video was from yesterday (Dec. 26):
> https://youtu.be/CEA0XdIvBQY
>
> Tonight we got the abrasive hoppe
There's now one more LinuxCNC waterjet in the world. Retrofit of a c. 2000
Flow Waterjet, 4' x 4' cutting area and a 40K psi intensifier.
This video was from yesterday (Dec. 26):
https://youtu.be/CEA0XdIvBQY
Tonight we got the abrasive hopper working and started cutting steel.
---
On 12/28/2015 04:25 AM, Dave Cole wrote:
[snip]
> I do a lot of machine wiring and I was redoing a machine for a major
> electrical manufacturer in the US (although this particular plant does
> hydraulics)
> and the plant maintenance nitwits tied a relay coil between a 480 volt
> hot leg and the
Well, if you ran a neutral to the BP what would you use it for ?? :-)
It isn't required by the NEC.
What you can't do is to tie a 120 VAC load between a hot wire and the
protective ground (which JT is not doing ).
I do a lot of machine wiring and I was redoing a machine for a major
electrical
On Sunday 27 December 2015 18:21:33 John Thornton wrote:
> The VFD filter has no place to connect a neutral... only hots and
> ground.
>
Goody. But if it works, hey!
> On 12/27/2015 5:10 PM, Gene Heskett wrote:
> > On Sunday 27 December 2015 17:07:15 John Thornton wrote:
> >> I've built a bunch
On Sunday 27 December 2015 18:38:38 Ben Potter wrote:
> > On Sunday 27 December 2015 18:03:20 Ben Potter wrote:
> > > I have to admit I'm curious how industrial 4th axes are set up - I
> > > presume an extended ground pin at a minimum - or do they need a
> > > full power down of the machine too?
>
> On Sunday 27 December 2015 18:03:20 Ben Potter wrote:
> > I have to admit I'm curious how industrial 4th axes are set up - I
> > presume an extended ground pin at a minimum - or do they need a full
> > power down of the machine too?
> A full power down of that motors driver will suffice. Its
The VFD filter has no place to connect a neutral... only hots and ground.
On 12/27/2015 5:10 PM, Gene Heskett wrote:
> On Sunday 27 December 2015 17:07:15 John Thornton wrote:
>
>> I've built a bunch of automation machines for Briggs and Stratton and
>> they never pull a neutral only 3 240v hots a
On Sunday 27 December 2015 18:03:20 Ben Potter wrote:
> > From: Bruce Layne [mailto:linux...@thinkingdevices.com]
> >
> > On 12/26/2015 05:17 PM, Ben Potter wrote:
> > > I tend to use Amphenol connectors...
> > > They are..._slightly_ pricey though - but very convenient if you
> > > have to swap
That would be a three-phase delta configuration, if it has three
240v hot lines. Delta wiring has no neutral, and it is 240v
line-to-line. Three-phase wye connection has a neutral, and
it is 120v line-to-neutral, and 208v line-to-line.
-- Ralph
From: John
On Sunday 27 December 2015 17:07:15 John Thornton wrote:
> I've built a bunch of automation machines for Briggs and Stratton and
> they never pull a neutral only 3 240v hots and a ground. We always
> have a control transformer for the 120v stuff... I have the same here
> now.
After an hours searc
> From: Bruce Layne [mailto:linux...@thinkingdevices.com]
> On 12/26/2015 05:17 PM, Ben Potter wrote:
> > I tend to use Amphenol connectors...
> > They are..._slightly_ pricey though - but very convenient if you have
> > to swap a motor out
> I've heard this advice before but I've never fully u
On Sunday 27 December 2015 17:07:15 John Thornton wrote:
> I've built a bunch of automation machines for Briggs and Stratton and
> they never pull a neutral only 3 240v hots and a ground. We always
> have a control transformer for the 120v stuff... I have the same here
> now.
>
That would also wor
I've built a bunch of automation machines for Briggs and Stratton and
they never pull a neutral only 3 240v hots and a ground. We always have
a control transformer for the 120v stuff... I have the same here now.
On 12/27/2015 3:52 PM, Gene Heskett wrote:
> On Sunday 27 December 2015 16:17:20 Joh
On Sunday 27 December 2015 16:17:20 John Thornton wrote:
> well there is no neutral because it's a 240vac circuit only...
>
The only reason there is not a neutral is that the wire was never pulled.
And I am not sure that missing neutral is NEC kosher. My copy is now 17
years old, so I think I'
well there is no neutral because it's a 240vac circuit only...
On 12/27/2015 12:16 PM, Bruce Layne wrote:
>
> On 12/26/2015 06:51 PM, John Thornton wrote:
>> There is no neutral in the machine, only L1 L2 and GND. The Neutral for
>> the house is bonded to ground at the panels.
> Electrician's Jok
On Sunday 27 December 2015 13:16:17 Bruce Layne wrote:
> On 12/26/2015 06:51 PM, John Thornton wrote:
> > There is no neutral in the machine, only L1 L2 and GND. The Neutral
> > for the house is bonded to ground at the panels.
>
> Electrician's Joke:
>
> Q: What's the difference between neutral a
On 12/26/2015 06:51 PM, John Thornton wrote:
> There is no neutral in the machine, only L1 L2 and GND. The Neutral for
> the house is bonded to ground at the panels.
Electrician's Joke:
Q: What's the difference between neutral and ground?
A: About six inches.
There's a very good reason the re
I don't know if this has been mentioned previously in this thread (If it has
AIA) but some PC power supplies have safety ground and DC return connected
together and some don't. -here in the US that is. UK floats I believe.
- Original Message -
From: "Gene Heskett"
To:
Sent: Saturday,
Except for underground rural power where every house has a pad mounted
transformer due to the distance between houses (I love the distance).
I bonded the neutral to the ground at both panels in the shop/garage and
the panel at the house. I have ground rods at the house and shop/garage.
The pane
ooops bad link
Here's abetter example
http://www.digikey.com/catalog/en/partgroup/d-1744-series/2069
2015-12-27 12:30 GMT+01:00 Peter Rosenblom :
> I use alot of of soldersleavves at work with good result. They are
> heatshrinks that has a soldderband inside. you heat them up as a regular
> heat
I use alot of of soldersleavves at work with good result. They are
heatshrinks that has a soldderband inside. you heat them up as a regular
heatshrink, and then kjeep jeating some more until the soldder metlts/wets.
Really handy and makes for very good splices. Pare it up with a
chemresistand glue-
On 27 December 2015 at 06:55, Bruce Layne wrote:
> or you can
> epoxy coat the inside of the outer piece of heat shrink over soldered
> connections, and when you shrink it the epoxy oozes out the ends and
> makes a waterproof seal.
Or you can buy heat-shrink with hot-melt glue pre-installed. A lo
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