Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On 04/17/2018 03:56 PM, Dave Cole wrote: If you Google absorption chiller you will see that Ammonia is again being considered for solar -refrigeration systems. I really don't understand why, but there is a lot of chatter on that topic. Direct thermal refrigeration may make sense. Sun

Re: [Emc-users] Possible MESA 5i20 problem

Hello Peter. The cables look fine but I'm gonna try with new cables tomorrow and see if it works all day long without trouble. The malfunction is erratic and happens a few times a day, but it's annoying as hell. Thank you. 2018-04-17 17:37 GMT-03:00 Peter C. Wallace : > On

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

I used to fill those anhydrous ammonia tanks for farmers. Ah, the memories of donning the goggles and thick rubber gloves and holding my breath while trying to stay up wind. Leaks were uncommon, but... things happen. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street  Dalton, Ohio 44618

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On 4/16/2018 9:43 PM, Jon Elson wrote: On 04/16/2018 10:43 AM, Dave Cole wrote: If you want to get fancy, you can chill water with heat using an ammonia absorption system (chiller).   That's what hospitals and many large commerical buildings use for air conditioning.    But they get complex

Re: [Emc-users] Possible MESA 5i20 problem

On Tue, 17 Apr 2018, Leonardo Marsaglia wrote: Date: Tue, 17 Apr 2018 16:51:51 -0300 From: Leonardo Marsaglia Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)"

[Emc-users] Possible MESA 5i20 problem

Hello to all! I have a camshaft grinder wich is working with a MESA 5i20 for 8 years more or less. Never had a problem until recently. A couple of days ago I had a major failure on the PC (not the power supply) so I replaced the complete unit to put the machine to work and then repair the other

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On Tuesday 17 April 2018 12:49:19 Przemek Klosowski wrote: > On Tue, Apr 17, 2018 at 9:00 AM, Gene Heskett wrote: > > i don't see why not, Lester. 12 or 24 volts would go a long ways > > toward keeping the NEC out of your hair. Insurance folks are > > stickier about such

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On Tue, Apr 17, 2018, at 12:53 PM, Chris Albertson wrote: > What I meant was "no fixture" not "better fixture" For example if you > design the room for LED lighting you can design in something like a > crown molding. Then you can runs a LED strip all the aw atone the top > of every wall. > >

Re: [Emc-users] Mesa choices

7i90 coming Gene, I'm going to run with my in stock Bob's for now I will use the optoless one for encoder count , and the opto'd one for controls . I'm using that optiplex 720 we were discussing last month with the real time issues. I'm getting a USB wifi adapter so I can post those messages and

Re: [Emc-users] 7i43 Invalid Cookie message

On 17 April 2018 at 18:06, Sebastian Kuzminsky wrote: > `git show v2.7.11` shows it was made 2017 July 27. > > 2.7.12 was made 2018 Jan 24. In that case the finger of blame points squarely at me. I am on holiday in the Alps right now, I will have a look when I get

Re: [Emc-users] 7i43 Invalid Cookie message

On Tue, Apr 17, 2018 at 10:55 AM, andy pugh wrote: > On 16 April 2018 at 20:00, Peter C. Wallace wrote: > > > I can confirm that theres some kind of 7I43 driver bug with 2.7.12 thats > not > > present wih 2.7.11. It does seem like the driver loads the

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

Yes that is true, there is a threshold for what is considered "low voltage" an when this went into NEC they were thinking about door bell, telephones and alarm system and heat thermostats. But you can use high voltage as long as you follow the code. When solar panels are installed they almost

Re: [Emc-users] 7i43 Invalid Cookie message

On 16 April 2018 at 20:00, Peter C. Wallace wrote: > I can confirm that theres some kind of 7I43 driver bug with 2.7.12 thats not > present wih 2.7.11. It does seem like the driver loads the firmware and > probes the card normally but then appears to search for another card

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

What I meant was "no fixture" not "better fixture" For example if you design the room for LED lighting you can design in something like a crown molding. Then you can runs a LED strip all the aw atone the top of every wall. In a large my cousin tore out all is hanging florescent fixtures and

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On Tue, Apr 17, 2018 at 9:00 AM, Gene Heskett wrote: > > i don't see why not, Lester. 12 or 24 volts would go a long ways toward > keeping the NEC out of your hair. Insurance folks are stickier about > such stuff, so I'd ask them if they had any special wireing rules for >

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

If efficiency is the goal then don't use 12VDC. Go up to 36 or 48 volts at lest. The best systems are like those use in the solar industry at 400+ volts DC. Power loss in the wire is "I squared R" so there should be an incentive to reduce I. Doubling the voltage reduces loss by 4X doubling

[Emc-users] 7i43 invalid cookie issue

I can confirm that theres some kind of 7I43 driver bug with 2.7.12 thats not present wih 2.7.11. It does seem like the driver loads the firmware and probes the card normally but then appears to search for another card I though it might be something to do with the default address but I could

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On Tuesday 17 April 2018 06:49:34 Lester Caine wrote: > On 17/04/18 11:14, Chris Albertson wrote: > > If you are thinking about LED lighting, don't try and replace > > incandescent bulbs. That works and is what people do but if you are > > building from scratch yu design the LEDS into the

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On 17.04.18 03:14, Chris Albertson wrote: > If you are thinking about LED lighting, don't try and replace incandescent > bulbs. That works and is what people do but if you are building from > scratch yu design the LEDS into the architecture.The most obvious > example is to place them under

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On 17/04/18 11:14, Chris Albertson wrote: If you are thinking about LED lighting, don't try and replace incandescent bulbs. That works and is what people do but if you are building from scratch yu design the LEDS into the architecture. I've replaced almost all the existing light bulbs with

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

If you are thinking about LED lighting, don't try and replace incandescent bulbs. That works and is what people do but if you are building from scratch yu design the LEDS into the architecture.The most obvious example is to place them under the wall cabinets in a kitchen. Just glue a strip

Re: [Emc-users] Mesa choices

https://forum.linuxcnc.org/54-user-exchange/32824-mesa-parts-4-sale Have some Mesa boards for sale. Cheers Bengt Den 2018-04-17 kl. 09:33, skrev Gene Heskett: On Monday 16 April 2018 23:41:51 jeremy youngs wrote: I'm controlling+-10 v carotron rcp 205-000 DC brush drive 25 amps, igbt

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

> Thanks Erik. Some of the above I've not heard about till now, like the > salt water battery. And its sounding like costs are coming down, just > not fast enough to do me a lot of good. The brand is Aquion, and there's a blurb here: https://www.youtube.com/watch?v=1EhnmWo2CZ8 I kept the URL,

Re: [Emc-users] Mesa choices

On Monday 16 April 2018 23:41:51 jeremy youngs wrote: > I'm controlling+-10 v carotron rcp 205-000 DC brush drive 25 amps, > igbt isolated. At 180v . > So from mulling this over , I think the 5i90 seems my best choice . There is not a 5i90, perhaps you mean the 7i90HD? With that, you'll need 3

Re: [Emc-users] Going off-grid [Was: Thinking about going off-line eventually.

On 16.04.18 09:53, Chris Albertson wrote: > > > > I'm also looking at a camping fridge with phase-change material inside > > the insulation. That only needs power for a couple of hours in the > > morning, and again in the afternoon, so does not load the batteries if > > there's sun. > > > > Not a