Re: [Emc-users] Hight Frequency VFD

and keep > the other as a spare. But for the time being we are slow enough we can > make do without that machine and can wait for the one we ordered. > > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -

Re: [Emc-users] Hight Frequency VFD

Have you checked to see if Siemens can help you? In order to go that fast they will sell you a license to install in a more or less standard drive. I understand that high freq drives can be used for other things, like gas centrifuges. So they try to keep track of where they go. Dave On Tue, Apr

Re: [Emc-users] electrical inspection pain

IMO, your building inspector is stepping way outside of his authority. His job is "building" inspection.   You got a permit for your "building" project.    Not for some machine sitting in your building. Unless your mill is part of the "building",  he is way outside of his authority. If your

Re: [Emc-users] A new lathe encoder option.

Nice work! On 7/20/2021 6:00 PM, andy pugh wrote: I have added missing-tooth index to the software encoder (only in master). https://youtu.be/t48TnJQtbCw This opens up a number of large-bore encoder options, as this is the scheme used on crankshaft trigger wheels. options:

Re: [Emc-users] Code of Conduct

I missed the beginning as well, but I think something happened that was not on this email list that prompted the COC stuff ? Perhaps it was an attempt to prevent a future issue!? I really have no idea. No one has ever explained why it was written or why it is important.   I asked more than

Re: [Emc-users] Meanwell SE600-48 Power Supply

You may have a bad power supply.  Do you have any output voltage? I'd attach a load and see if it holds voltage.   I cant think of anything that should be clicking in there.   Arcing can sound like clicking. The spec sheet says nothing about fan control and I would expect they would flaunt

Re: [Emc-users] Settlement on CoC topic

Did I miss an incident that prompted this? Apparently not. I have asked the same question and nothing has been brought up, cited, etc. I have no idea why it was written. Unless this COC adds more features to LCNC or fixes bugs, does the dishes, or launders my clothes etc, I am going to

Re: [Emc-users] Code of Conduct

Could someone please point out why this COC is even an issue? If we already agreed to some terms, why is  a COC being layered on top of that? Seeing people pack their bags over a proposal, seems like a bad idea. The argument that no professional organizations or people will be attracted to a

Re: [Emc-users] Ethercat returning message disappear

On 7/11/2021 1:03 PM, Chris Albertson wrote: That said, Ethernet has been made to work on the Raspberry Pi "Pico", How long until Ethercat runs on this $4 part? The Pico is made by a non-profit foundation, so the price will remain low That is very interesting.. Probably not long! Dave

Re: [Emc-users] Runaway PID spindle.

I think that is a spiral point tap. The flute is straight along the length of the tap then the flute is is ground deeper toward the backside of the cutting edge. AutomationDirect.com sells some really nice taps for reasonable amounts. Dave On 7/9/2021 8:32 PM, John Dammeyer wrote: The

Re: [Emc-users] Code of Conduct

I've been lurking on this forum for the last few years. But I've been a subscriber for way over 10 years. Constructed many LCNC machines. A few worked so well they physically wore out and had to be scrapped! But my business took me elsewhere for the last few years. So this COC is a surprise.

Re: [Emc-users] Code of Conduct

I've been lurking on this forum for the last few years. But I've been a subscriber for way over 10 years. Constructed many LCNC machines.   A few worked so well they physically wore out, and had to be scrapped! But my business took me elsewhere. So this COC discussion is a surprise. This has to

Re: [Emc-users] Small PC for use with 7i90 / 7i96?

Chris, How many 3 1/2" drive bays do these have? A lot of the HP PCs were very well made.   I've worked on some that have been running industrial software for 10+ years non stop running Windows XP and they are just now dying.    One plant I was at bought a bunch of refurbs just to use as

Re: [Emc-users] machine opinion please

On 2/7/2021 6:59 PM, Chris Albertson wrote: On Sun, Feb 7, 2021 at 9:41 AM Gene Heskett wrote: Space for it means pulling the crooked g0704 out before bringing it in. And more than likely hurting myself getting it backed into the space. But I think I'm a little smarter about such than I

Re: [Emc-users] Classicladder Sequential

Do you mean writing a sequencer in Classic Ladder? As in step logic? Dave On 1/25/2021 4:33 PM, Todd Zuercher wrote: Does anyone have any examples of Classicladder using a Sequential program? Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio

Re: [Emc-users] Rpi Pico

achine Controller (EMC) Subject: Re: [Emc-users] Rpi Pico On Thu, Jan 21, 2021 at 7:56 PM Dave Cole wrote: I was thinking multiple RPi Picos to one RPi4, but for just one, that is probably the way to go. The Pico is a dual-core M0. So it is faster than I had originally thought. Micro-Python is po

Re: [Emc-users] Rpi Pico

soldered. I can make a simple passive carrier board that has connectors and it is not hard to hand solder 0.1 inch pitch. The carrier board could be a Pi-hat On Thu, Jan 21, 2021 at 4:30 PM Dave Cole wrote: I wonder if these could act as SPI slaves to the RPI 4? I've been trying to buy two from

Re: [Emc-users] Rpi Pico

Sparkfun had them in stock. On 1/21/2021 7:30 PM, Dave Cole wrote: I wonder if these could act as SPI slaves to the RPI 4? I've been trying to buy two from Adafruit and they keep selling out and then coming back in stock, and then selling out again! Dave On 1/21/2021 6:36 PM, andy pugh

Re: [Emc-users] Rpi Pico

I wonder if these could act as SPI slaves to the RPI 4? I've been trying to buy two from Adafruit and they keep selling out and then coming back in stock, and then selling out again! Dave On 1/21/2021 6:36 PM, andy pugh wrote: On Thu, 21 Jan 2021 at 21:52, Chris Albertson wrote: This is

Re: [Emc-users] Rpi Pico

It has some interesting sub processors to handle I/O.   Reminds me of the sub processors on the Beagle Board Black. https://hackspace.raspberrypi.org/articles/what-is-programmable-i-o-on-raspberry-pi-pico Here are some docs: https://www.raspberrypi.org/documentation/pico/getting-started/ It

Re: [Emc-users] Chinese VFDs with good reputations

Thanks for the tip on HuanYang! Dave On 12/30/2020 2:49 PM, Eric Keller wrote: On Wed, Dec 30, 2020 at 1:20 AM Gene Heskett wrote: Most are HuanYang, and decent, reliable stuff. I'm using 2 of them. From what I can tell, most of the HuanYang vfd's on ebay are copies. HuanYang uses a

Re: [Emc-users] Great display of 28-axis machine control - totally OT

Who is the Department of Defense working with on war fighting robots now? Apparently not Boston Dynamics? Dave On 12/30/2020 9:07 AM, Andrew wrote: ср, 30 груд. 2020 о 04:22 Chris Albertson пише: https://youtu.be/fn3KWM1kuAw Recently Hyundai Motor Group acquired 80% of Boston Dynamics for

Re: [Emc-users] Chinese VFDs with good reputations

- From: Dave Cole [mailto:linuxcncro...@gmail.com] Sent: December-26-20 9:44 AM To: emc-users@lists.sourceforge.net Subject: [Emc-users] Chinese VFDs with good reputations What low cost Chinese drives have you guys used with great success? I'm talking mostly single phase input drives

Re: [Emc-users] Chinese VFDs with good reputations

I was thinking about drives such as these on Ebay. https://www.ebay.com/itm/AC220V-2HP-1-5KW-8A-VFD-Variable-Frequency-Drive-Inverter-Controller-Converter/124311510881?hash=item1cf18b1f61:g:dDIAAOSwj1hfRNRg

[Emc-users] Chinese VFDs with good reputations

What low cost Chinese drives have you guys used with great success? I'm talking mostly single phase input drives. There are a lot of look a likes on Ebay.   Some are dirt cheap. Others not so much. Some specify that they are specifically for water cooled spindles, etc. Others say almost

Re: [Emc-users] Checking vfd hookup question?

backplane,   But then they don't get that hot. By the time you fab the cage, you can almost buy one new with a cage and that is rated. Dave On 12/24/2020 1:36 PM, Jon Elson wrote: On 12/24/2020 11:43 AM, Dave Cole wrote: Automation Direct sells braking resistors. https://www.automationdirect.com

Re: [Emc-users] Checking vfd hookup question?

Automation Direct sells braking resistors. https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/vfd_accessories/braking_units_-a-_resistors Looks like the cheapest one is about $30. But unless you are hitting the brakes constantly, they

Re: [Emc-users] Checking vfd hookup question?

On 12/22/2020 8:50 PM, Jon Elson wrote: Using too low a resistance won't harm the MOTOR, it will blow the power brick in the VFD. Right.  The newer drives chop current off the DC bus to the braking resistor to lower the DC bus voltage as the motor slows. I'd find out what they

Re: [Emc-users] Checking vfd hookup question?

Is this a Chinese drive?  I have seen a lot of strange nomenclature on Chinese drives. M in a German sense, oftentimes denotes "mana" which is a common.  I have seen M or "mana" used to denote a low voltage common.   So does the M in DCM, stand for "mana"? Perhaps?  Perhaps the drive was

Re: [Emc-users] Interface Simodrive 611 ?

If the drives are still running, then I don't think you will have any issues getting them to work with LinuxCNC. There are still companies out there repairing those drives but some of the parts are no longer available.  I doubt you will need to alter anything in the drives themselves to get

Re: [Emc-users] Interface Simodrive 611 ?

I have worked on Siemens controls and drives for years. It depends on how old your Simodrive is. Do you have a Simodrive 611U or an earlier 611 drive? They had some really old drives in the early 90s that were also called 611's but they were not like the later 611's. The later drives were

Re: [Emc-users] driver for a DC motor for a BS-1.

On 11/13/2020 1:24 AM, Gene Heskett wrote: On Thursday 12 November 2020 20:50:10 Dave Cole wrote: Gene, Where did you buy that H bridge board ?  Ebay ? Dave Yes, Thats a BTS7960 board. I tried it out tonight, ran the motor at about half speed for about half an hour. No detectable heating

Re: [Emc-users] driver for a DC motor for a BS-1.

Gene, Where did you buy that H bridge board ?  Ebay ? Dave On 11/9/2020 5:15 PM, Gene Heskett wrote: On Wednesday 28 October 2020 16:02:51 Gene Heskett wrote: On Wednesday 28 October 2020 14:30:39 Chris Albertson wrote: I bit of information from Polulu's web site. They say.. "*While

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

I have been using Pink RV antifreeze for years in my horizontal bandsaw.   The pump has been submersed in it for 7 years or so.    I never goes bad and stuff never seems to grow in it, but it does evaporate slowly.   I just add more. I use it full strength.   The Anticorrosives in it seem to

Re: [Emc-users] driver for a DC motor for a BS-1.

I didn't think that we were talking about positioning. I thought you were talking about a spindle drive. I think it could be used as a low performance positioning drive. You would need an opto coupler setup for the command obviously if there is no isolation. I'm not sure that the newer KB

Re: [Emc-users] OT: Fanuc 0M setup

I forget what version of the Fanuc Controllers this applies to, but there were some controllers that had a compact flash slot on the front. The compact flash slot was used to load and read out the PLC program logic and the other controller settings.   The programming was done offline on a

Re: [Emc-users] driver for a DC motor for a BS-1.

What about using a common KB Electronics DC drive? Woot.com (Amazon discount site) is selling one for $89.  I think they can commonly be found on Ebay as well. Dave On 10/19/2020 5:22 PM, grumpy--- via Emc-users wrote: On Sun, 18 Oct 2020, John Dammeyer wrote: Way back in 2003 I started a

Re: [Emc-users] ot: welders

The old Lincoln tombstone type welders - not the last 20 year units sold in big box stores, but the old industrial style transformer welders were good.  The old tombstone welders had a crank on the front to set the amps. They look old, and they are, so they don't sell well.   They were dark

Re: [Emc-users] LinuxCNC 2.8.0 is released

Awesome!   Thanks Andy and everyone who contributed! ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] SSD reliability

I have a number of Samsung EVO SSDs running in production equipment.  They were either original or replacements for rotating drives. Most of these PCs are on 24x7 and I have yet to have a SSD failure. I think I started using Samsung SSD drives right after Samsung introduced them.  However I

Re: [Emc-users] cloning hard drive to new SSD

Look up R-Drive image.   It works with Windows and will clone just about anything.  Linux drives are no big deal. Its not free, but its not expensive either. I have two USB to IDE/Sata adapters that I used to clone drives.  Or you can use one adapter and save the image from one drive and

Re: [Emc-users] Gecko Failure

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,

Re: [Emc-users] Gecko Failure

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

Re: [Emc-users] linuxcnc openlung ventilators

When I was 15, (> 45 years ago) I had double pneumonia and I was hospitalized for 10 days.  It seemed like weeks. Two large penicillin injections in my rump each day.   Breathing treatments every hour at the beginning and then less frequently as I improved.  You wouldn't believe the amount of

Re: [Emc-users] Wedding rings vs R8 or ER42 collets.

FYI, This doesn't answer your question but might give you some ideas. Back in High School, a few years ago, it was somewhat traditional that when a girl was serious about about a guy, he would give her his class ring to wear. Of course the rings were generally way too big for the girls. In

Re: [Emc-users] Machine For Conversion?

Hass seems to have a good service organization and that can be a big deal if you have a breakdown on  a critical machine and can't repair it yourself. Dave On 11/6/2019 10:51 PM, Jon Elson wrote: On 11/06/2019 12:32 PM, Todd Zuercher wrote: The seller who is the original owner says that the

Re: [Emc-users] Whereare you getting your wire from?

On 10/29/2019 9:01 AM, Gene Heskett wrote: On Tuesday 29 October 2019 06:58:34 andy pugh wrote: On Tue, 29 Oct 2019 at 10:47, Roland Jollivet wrote: Is this something difficult to get in your country? Gene is in the US, so I wouldn't have expected so. I have forgotten where you are. I

Re: [Emc-users] Whereare you getting your wire from?

Menards was selling some surprisingly nice low voltage control wiring with two conductors two years ago for a good price.   I bought a hundred feet of it or so to wire up some air valves on a machine and I was in a rush. It was real stranded copper and I believe it was 18 gauge. Two conductors

Re: [Emc-users] got those peristaltic pumps.

/2019 1:45 AM, Gene Heskett wrote: On Wednesday 23 October 2019 22:16:40 Dave Cole wrote: https://www.harborfreight.com/2-1-2-half-gallon-pressure-paint-tank-66 839.html https://www.harborfreight.com/air-tools-compressors/air-spray-guns/hvl p-lvlp-spray-guns/64-oz-professional-hvlp-air-spray-gun-kit

Re: [Emc-users] got those peristaltic pumps.

: On Tuesday 22 October 2019 22:23:05 Dave Cole wrote: I'm surprised your not using a pressure pot to spray the coolant. You could put an electric valve on the output and pulse it on and off. Harbor Freight has a cheap pressure pot/spray gun setup.  Just use the pot. Sometimes low tech is good

Re: [Emc-users] got those peristaltic pumps.

I'm surprised your not using a pressure pot to spray the coolant. You could put an electric valve on the output and pulse it on and off. Harbor Freight has a cheap pressure pot/spray gun setup.  Just use the pot. Sometimes low tech is good.  :-) Dave On 10/22/2019 9:22 PM, Gene Heskett wrote:

Re: [Emc-users] ADC - realtime for load cell

So you want to balance the load on the platform with a single load cell? That's going to be nearly impossible. The reason is that when you drive the load up, the load cell will see an increase in force due to acceleration. So you will need some position feedback as well. Dave On

Re: [Emc-users] ADC - realtime for load cell

On 9/18/2019 11:15 AM, Jon Elson wrote: On Tue, Sep 17, 2019 at 6:17 PM Chris Albertson wrote: If you want better than 16-bits and 1KHz then you also are going to need a very good quality analog signal conditioning and instrumentation amplifier. I've never heard of anybody getting 16-bit

Re: [Emc-users] Input Line Filters?

I would definitely put a reactor, filter/s, or isolation transformer on the front end of the cheap drives. If you are not running the drive cables (the cables between the drives and the motors) in conduit or metallic seal tite, I would use shielded cable. Otherwise you risk RFI issues.     I've

Re: [Emc-users] how to get 2.8 linuxcnc installed. And do people prefer classic ladder or external plc for toolchange.

My answer is it depends. If you already have I/O that you can use, and you can do the logic in Classic Ladder or a component, then that will work. If you need to add high current I/O or need 120 or 220 volt AC I/O then you might as well buy a cheap PLC.   The Click PLC with the Modbus TCP

Re: [Emc-users] Looks like the Pi4 is out

On 6/24/2019 5:41 AM, andy pugh wrote: On Mon, 24 Jun 2019 at 07:47, Chris Albertson wrote: It's a big upgrade, much faster networking, much improved video and options for up to 4GB RAM. What exquisite timing. I designed and made an aluminium case this weekend, for the 3B+, but it won't fit

Re: [Emc-users] Wanted, small engine whiz

had a chuck next to the house a couple years ago. I haven't seen him since a cup of bleach and a cup of ammonia accidentally fell into the hole ... On Tue, Jun 18, 2019, 12:09 Dave Cole wrote: On 6/18/2019 11:20 AM, Gene Heskett wrote: To me, thats a sign they never paid any attention

Re: [Emc-users] Posting order

or to them to test if they also lose position like the HP_UHU drives do. John -Original Message----- From: Dave Cole [mailto:linuxcncro...@gmail.com] Sent: June-18-19 7:56 AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Posting order On 6/16/2019 9:47 PM, Gene Heskett wrote: I

Re: [Emc-users] Wanted, small engine whiz

On 6/18/2019 11:20 AM, Gene Heskett wrote: To me, thats a sign they never paid any attention to the physics when they were in school all those years ago, but I'm doing it on an 8th grade education that ended in '49. Gotta move my ears back a bit to make room for the grin.:) There are a number

Re: [Emc-users] Posting order

On 6/16/2019 9:47 PM, Gene Heskett wrote: I have a few years to go but for some reason still feeling growly. Went looking for some tintable alkyd enamel paint today to match the mill so I could paint the CNC cabinet. What a wasted day. No one carries this anymore. All water based. Do you

Re: [Emc-users] Wanted, small engine whiz

On 6/16/2019 9:43 PM, Gene Heskett wrote: Anyway, its all moot as I took the locked up in 2nd gear rear axle out of the craftsman and replaced it with the same unit from the John Deere. Cuts grass like a golf green now. There is always more than one way to get to a solution. So apparently you

Re: [Emc-users] Wanted, small engine whiz

Whoops, I meant Onan. Dave On 6/5/2019 9:55 AM, Todd Zuercher wrote: If this is turning into a small engine clinic, I have an old (late '70s vintage) Onan NHCV engine that is giving me huge problems. The "V" in NHCV means that this engine sucks, quite literally in more ways than one. It is

Re: [Emc-users] Wanted, small engine whiz

If your Wisconsin throws the seat again... I'd consider the Harbor Freight big V twin they sell. They have been used on smaller skid loaders. Check out youtube. I think with a collection of coupons you can get one for about $600. Dave On 6/5/2019 9:55 AM, Todd Zuercher wrote: If this is

Re: [Emc-users] Wanted, small engine whiz

You have at least one issue, perhaps more. 1.  Oil level was over full.     The float in the carb is stuck open which causes fuel to drain into the carb and then into the intake valve, by the piston and into the oil reservoir. It isn't that unusual as I have had this happen on vertical

Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

be in trouble.  But I suspect that they would do what they could to make things right. https://www.machsupport.com/help-learning/software-licensing-info/ Dave On 6/3/2019 12:16 PM, Jon Elson wrote: On 06/03/2019 10:02 AM, Dave Cole wrote:  Mach4 is unknown to me and requires a phone home license

Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

On 6/1/2019 5:01 PM, Peter C. Wallace wrote: The host needs to run the Servo thread (typically at 1 KHz) reliably Yep, and that isn't possible with WinXP.    Mach3 runs a buffered interface to the Smoothstepper. I think there is about 100 ms of buffered data at anyone time. WinXP is

Re: [Emc-users] Increasingly OT: [Was: Re: How come.... --> battery safety due to high current, DC relay

There are some good reasons to use a 24 or 48 volt DC bus power system for smaller systems. The chance of electrocution is pretty low for a 48 volt DC system in a dry environment. Once you get above 50 volts or so things change. 24 volts is quite a practical voltage level for smaller systems.

Re: [Emc-users] How come....

We still use BTU's for small Furnace and Air Conditioner sizing... For larger units its BTUs for furnaces and Tons of cooling for Air Conditioners. Everyone knows that 12,000 btus is required to melt 1 ton of ice.  Hence 12,000 btus is equal to "one ton" of cooling. Who would have known that

Re: [Emc-users] How come....

, then stuff some FWD drivetrain in the "frunk". On Sunday, May 19, 2019, 10:32:52 AM MDT, Dave Cole wrote: I do have to wonder though... if these Tesla cells were no longer usable for a Tesla, why would anyone think they would be good in a stationary application unless they we

Re: [Emc-users] How come....

That's what I understood...  I won't be owning a Tesla until that changes. Dave On 5/18/2019 2:50 PM, Bruce Layne wrote: Tesla has adopted the software rental model where the customer doesn't really own anything. ___ Emc-users mailing list

Re: [Emc-users] How come....

I do have to wonder though... if these Tesla cells were no longer usable for a Tesla, why would anyone think they would be good in a stationary application unless they were derated by quite a bit. $1200 is far from free. Dave On 5/17/2019 12:24 PM, Kirk Wallace wrote: Here is a fairly

Re: [Emc-users] How come....

I do have to wonder though... if these Tesla cells were no longer usable for a Tesla, why would anyone think they would be good in a stationary application unless they were derated by quite a bit. $1200 is far from free. Dave On 5/17/2019 12:24 PM, Kirk Wallace wrote: Here is a fairly

Re: [Emc-users] How come....

OK, Buy  a new "cheap" Tesla - about $35,800 right now. Remove the battery pack  ;-) You guys on the west coast make it sound like you have Tesla's sitting on the side of the road with "$500 or best offer" sale signs. We now have 11 supercharger stations in the state of Indiana. If

Re: [Emc-users] How come....

s. On Thu, May 16, 2019 at 12:03 PM Dave Cole wrote: https://www.wholesalesolar.com/blog/lead-acid-vs-lithium-batteries/ This solar company wrote up this analysis regarding Lead Acid vs Lithium and generally recommend Lead Acid for off grid residential use. I went through their analysis an

Re: [Emc-users] How come....

DC power contactors are available. They are used in Golf Carts, Fork Lifts etc. But you are right, DC arcs are not easy to extinguish, and that can be a problem. BTW, most electric forklifts are still using Lead Acid batteries and many have 5 year warranties on the batteries. Most fork

Re: [Emc-users] How come....

could be gone. I'd put the battery bank in an outbuilding.  If something shorts out and the battery bank melts down, the little building may burn but my house won't. Dave On 5/14/2019 2:11 PM, Kirk Wallace wrote: On 5/14/19 9:33 AM, Dave Cole wrote: I've been planning to put up an array

Re: [Emc-users] How come....

they failed.  I sure wouldn't want that to happen to $10K worth of Lithium batteries! Weight isn't an issue. Dave On 5/9/2019 10:37 PM, Erik Christiansen wrote: On 09.05.19 10:24, Dave Cole wrote: Erik, Do you have a blog going on your build? Now that's an idea. All I've started is the seeds

Re: [Emc-users] How come....

Erik, Do you have a blog going on your build? I'd be very interested in your solar and battery setup for your off-grid home. You must have a substantial setup to be able to run your AC off your battery bank. What do you do for domestic water?  A deep well? Dave On 5/9/2019 5:17 AM,

Re: [Emc-users] Posting order

What makes that even easier is to enable HTML email and then not only change colour but also font. The "best" answer, of course, is to embed Javascript in an HTML email to present the data according to the preferences registered by each recipient on an SQLite database hosted on an Amazon AWS

Re: [Emc-users] Fusion 360

I work with a shop that does a lot of waterjet, laser, 4 axis mill, and some lathe work and they are using Fusion 360 for their 4 axis mill and lathe they are very happy with it. I've used Fusion 360 to drive a LinuxCNC lathe and it worked fine. It seems like things are moving to the cloud, but

Re: [Emc-users] DIY CNC builder dilemma, open request for comments

On 2/20/2019 8:42 AM, Ken Strauss wrote: -Original Message- From: John Dammeyer [mailto:jo...@autoartisans.com] Sent: Wednesday, February 20, 2019 12:07 AM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] DIY CNC builder dilemma, open request for comments My mill is

Re: [Emc-users] 1.5 kw vfd in 6040 problems

On 1/28/2019 11:49 AM, Gene Heskett wrote: On Sunday 27 January 2019 19:27:54 Gene Heskett wrote: On Sunday 27 January 2019 17:57:03 Jon Elson wrote: On 01/27/2019 03:28 PM, Gene Heskett wrote: So do I ground the direction desired, or feed it 10 volts? Which the vfd also has available

Re: [Emc-users] 1.5 kw vfd in 6040 problems

On 1/23/2019 6:30 PM, andy pugh wrote: On Wed, 23 Jan 2019 at 23:08, Gene Heskett wrote: Near as I can id it, its a PRT-E1500W, but this one may have a longer name. One pcb, sitting on a thick block of alu. The internet seems to be full of people saying that they can't get any useful sort of

Re: [Emc-users] color me pissed

Get a copy of Clonezilla and put it on a stick drive and make it bootable. https://clonezilla.org/ It does an effective job of backing up and restoring entire Linux disks without pain via a graphical interface. It can also do baremetal restores as well. I use a little USB plug in Hard drive

Re: [Emc-users] G10 L2 R-90 isn't working?

considered a transplant/outsider by the locals. Although they are getting friendlier! :-) But people still say that I talk funny. Dave On 1/10/2019 10:04 PM, Gene Heskett wrote: On Thursday 10 January 2019 19:21:01 Dave Cole wrote: A pacemaker. That's one way to get some new hardware

Re: [Emc-users] G10 L2 R-90 isn't working?

A pacemaker. That's one way to get some new hardware! Glad you are back at it. Pacemakers run in my family. They are amazingly durable. Trivia ...Most of the wire used to tie the heart into the pacemakers is made in Fort Wayne, IN. That makes you part Hoosier! :-) Dave On 1/10/2019

Re: [Emc-users] Done with that panel code, with one exception

Its hard to beat this price for 3D Cad/Cam which is free for hobbyist and startups making less than 100K per year. https://www.autodesk.com/campaigns/fusion-360-for-hobbyists It requires Window, but its free! I know of a shop that is using Inventor now and they are moving a lot of their work

Re: [Emc-users] No mail received?

of it is. There are several articles out there on Boat, Ship and airplane Autopilots being implemented with fuzzy logic. Dave On 10/19/2018 11:20 PM, Gene Heskett wrote: On Friday 19 October 2018 22:36:43 Dave Cole wrote: Here is one I remember. http://www.rentanadviser.com/en/pid-fuzzy

Re: [Emc-users] No mail received?

a coolant temp input, current input, etc, etc. and they could all be used to create an output. My advice when reading up on Fuzzy logic;   If it is not understandable, keep looking for an understandable explanation. Dave On 10/19/2018 7:23 PM, Gene Heskett wrote: On Friday 19 October 201

Re: [Emc-users] No mail received?

I did the university thing on control theory, but it was a while ago.. more than 30 years..so I'll leave it at that!  :-) If you are researching loop control theory, you should also look at Fuzzy logic controllers. There are some simulator software out there that allow you to compare Fuzzy

Re: [Emc-users] Vacuum table Re: Yet another topic about gantry homing

Instead of making bearings I would look at what Igus and others have to sell. They are not that expensive and you have plenty of other things to do. Regenerative Vacuum blowers work well for vacuum hold down work.    They are still power hogs and quite noisy without mufflers on the outputs.

Re: [Emc-users] Yet another topic about gantry homing

the pictures) El jue., 4 oct. 2018 a las 12:00, Dave Cole () escribió: I'd avoid a worm gear drive. They are prone to wear and backlash. I'd look for a good deal on a servo grade planetary 10:1 gearbox that fits your Chinese motor. Probably the easiest and most rigid drive solution is to use two

Re: [Emc-users] Yet another topic about gantry homing

Chris, Do you have a link for these "new style ball screws" ?? Thanks,  Dave On 10/4/2018 3:33 PM, Chris Albertson wrote: Have you seen the new style ball screws? They are now cheaper then belts and have pretty "over kill" specs. The problem with a 30mm wide belt drive is the need to

Re: [Emc-users] Yet another topic about gantry homing

I'd avoid a worm gear drive.   They are prone to wear and backlash. I'd look for a good deal on a servo grade planetary 10:1 gearbox that fits your Chinese motor. Probably the easiest and most rigid drive solution is to use two motors each with a planetary gear box and direct drive a pinion on

Re: [Emc-users] Yet another topic about gantry homing

You need to keep the drive system as simple as possible and keep backlash in mind. Also, don't forget about the spring constant of any shaft you run across the gantry.  If you do that, you might want to run a tube drive shaft rather than a solid shaft for more torsional rigidity. There is

Re: [Emc-users] OT: motor usage

explore the drive. If I can get a direct/ and belt set-up with 1:1 and 1:3 I'll be quite happy. On Wed, 3 Oct 2018 at 16:36, andy pugh wrote: On Wed, 3 Oct 2018 at 15:05, Dave Cole wrote: I would find the original drive specs for that motor. I'm sure they had a matching drive for it. I think

Re: [Emc-users] Yet another topic about gantry homing

You will probably need two reduction stages to get a 10:1 belt drive reduction. There are some fairly cheap servo motor gear boxes out there now being made in China. That may be the cheaper/easier way to go. FWIW, 1 KW servo motors x 2 is probably an overkill unless you want to go really fast

Re: [Emc-users] OT: motor usage

I would find the original drive specs for that motor.  I'm sure they had a matching drive for it. The specs for that drive/motor combo should specify the max speed of the motor with that particular drive along with the torque vs speed curve. It may be 2x the rated speed but at reduced

Re: [Emc-users] update version on working machine

THIS is the safest way to upgrade a running system: Make multiple partitions. No, that's definitely not the safest way. Jon's right. Swap hard drives. You can't screw up something that's not plugged in! If you don't want to do that, then at least image the drive to another device, like

Re: [Emc-users] Faro Arm

Looks interesting. If I didn't already have a backlog of projects! That should be plenty precise for many things. What's the alternative?   Scales, tape measures, laser levels? Any idea how much the official Faro PC card and software costs? Or if it is even available any longer? Dave On

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