Re: [Emc-users] Anilam linear encoder output voltage <1v... any ideas?

> Subject: Re: [Emc-users] Anilam linear encoder output voltage <1v... any > ideas? > > Pat Lyons wrote: > > Hey folks, > > > > just inquiring about the output of my anilam linear encoder being less than > > one volt in amplitude... a full 5v is applied, but the pulses coming out > > only

Re: [Emc-users] Anilam linear encoder output voltage <1v... any ideas?

Pat Lyons wrote: > Hey folks, > > just inquiring about the output of my anilam linear encoder being less than > one volt in amplitude... a full 5v is applied, but the pulses coming out > only hit like 0.3vI pulled apart the connector to find some oil in > between the pins but wiped it out and

Re: [Emc-users] How Exactly does a Mister Work

I've spent quite a few days in a Chrysler transmission plant servicing CNC machines and as I recall every machine I worked on used regular flood coolant, although some of them may have had high pressure systems - still flood coolant. Some of the machines were cutting steel, but many where cu

Re: [Emc-users] Compact Flash card for Hard Drive

I have some Windows based systems running off CF cards. I found that some low dollar IDE to CF adapters simply would not work to boot windows reliably. I ended up buying some more expensive Addonics SATA to CF adapters and that solved the boot issues that I ran into.I used Transcend 133X

Re: [Emc-users] Compact Flash card for Hard Drive

I'm not sure if this is relevant with Linux, but we have some Siemens MicroBox PLC's at work, they run Windows XP embedded IIRC. They have a compact flash drive and they have to protect the CF because Windows will try to read/write constantly as virtual memory and wear the CF cards out shortly

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Jeshua Lacock wrote: >On Nov 21, 2009, at 9:55 AM, Gene Heskett wrote: >>> My first attempt was in olivine sand, and I had about 1/2 inch layer >>> of black quartz fused around the casting! >> >> I'll bet that was NOT fun to remove without damaging the casting too >> m

Re: [Emc-users] Compact Flash card for Hard Drive

David Winter wrote: > Dear All, >Anyone used a CF card as a hard drive? They are kind of slow. Not too bad to read, but still can be a couple megabytes a second, depending a lot on the adaptor. But, the write speed can be REALLY slow, vastly slower than a normal hard drive. I th

Re: [Emc-users] Compact Flash card for Hard Drive

It seems to me that UBUNTU is debian, sort of. On Sat, 2009-11-21 at 11:45 -0600, Karl Schmidt wrote: > I have Linux boxes that boot off a CFLASH > > things to know: > - CFLASH will wear out so create a RAM-drive for your logs. > - Get a big CFALASH so the wear leveling can do it's thing. > - Tu

Re: [Emc-users] How Exactly does a Mister Work

On Nov 21, 2009, at 9:55 AM, Gene Heskett wrote: >> My first attempt was in olivine sand, and I had about 1/2 inch layer >> of black quartz fused around the casting! > > I'll bet that was NOT fun to remove without damaging the casting too > much. :( Lets just say I wrote that one off as an exp

Re: [Emc-users] How Exactly does a Mister Work

On Nov 21, 2009, at 5:58 AM, Erik Christiansen wrote: > On Sat, Nov 21, 2009 at 05:00:13AM -0700, Jeshua Lacock wrote: >> One of the beauties of casting with aluminothermic reactions is there >> is no crucible used (or furnace)! > > Would another beauty be that TiO2 is cheap enough to put in pain

Re: [Emc-users] P, I, and D variables adjustable while emc2 is running?

You can go to Machine/Calibration and tune servos from there. John On 21 Nov 2009 at 15:20, Pat Lyons wrote: > I think this may be a popular question but I couldn't find much at > all on > the idea of being able to tune the p i and d variables without > having to > quit and restart emc. > > so

Re: [Emc-users] c&t f6900 problem

> Alternatively: is there still a 6.06 live cd available (been looking for > it in vain)? You can find it here: http://www.linuxcnc.org/iso/emc2.2.2-1-ubuntu6.06-desktop-i386.iso or on my mirror: http://dsplabs.cs.upt.ro/~juve/emc/ Regards, Alex -

Re: [Emc-users] P, I, and D variables adjustable while emc2 is running?

2009/11/21 Pat Lyons : > > I think this may be a popular question but I couldn't find much at all on > the idea of being able to tune the p i and d variables without having to > quit and restart emc. You can type setp commands in the Hal-Information screen. -- atp --

Re: [Emc-users] Spindle positioning in degrees

Hello guys thanks for the attention, I'm making tests with a telemecanique VFD that has the +/- 10 volt analog input (as far as i know is a vectorial vfd but i don't know if it's the same as a flux-vector), i tried both using as a spindle and as an axis, and worked ok... i didn't tune quite well t

[Emc-users] P, I, and D variables adjustable while emc2 is running?

I think this may be a popular question but I couldn't find much at all on the idea of being able to tune the p i and d variables without having to quit and restart emc. so is it possible? or do I need to keep restarting? thanks -pat ---

Re: [Emc-users] Compact Flash card for Hard Drive

Hi Gene, > But booting a normal linux like the version we use for emc, that uses ext3 as > the filesystem would probably use it up in a week or 2. Don't underestimate the number of write cycles a CF card can handle. As long as you disable atime and stick the logs into a ram drive, as I descri

Re: [Emc-users] Anilam linear encoder output voltage <1v... any ideas?

On Sat, 21 Nov 2009, Pat Lyons wrote: > Date: Sat, 21 Nov 2009 12:09:00 -0500 > From: Pat Lyons > Reply-To: "Enhanced Machine Controller (EMC)" > > To: "Enhanced Machine Controller (EMC)" > Subject: [Emc-users] Anilam linear encoder output voltage <1v... any ideas? > > Hey folks, > > just

Re: [Emc-users] c&t f6900 problem

Hi Steve > > >Thanks for the hint. Currently getting 6.06 and 7.10 > iso's to burn and test. I did already run a test using 8.04 > alternative installl w/o success so far. So I guess, my > quest seems to be to find the right ubuntu version prior or > euqal to 8.04 to start off with. > >  > > > Yo

Re: [Emc-users] Compact Flash card for Hard Drive

I have Linux boxes that boot off a CFLASH things to know: - CFLASH will wear out so create a RAM-drive for your logs. - Get a big CFALASH so the wear leveling can do it's thing. - Turn off atime - so it won't write every time you read. Doing this is cleaner in Debian ( EMC belongs on Debian anywa

Re: [Emc-users] Compact Flash card for Hard Drive

On Saturday 21 November 2009, David Winter wrote: >Dear All, > Anyone used a CF card as a hard drive? I thought I read >here that someone has done it >but I searched the wiki and didn't find anything. I have a card and >adapter which I have partitioned >with fdisk and formatted us

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Peter blodow wrote: >Hello Gene, >I take this discussion about welding and combustibles as an oopportunity >to clarify a few things. >1. CO2 is used in arc welding only for old soft iron (mild steel) in order >to maintain the percentage of carbon of the components als

Re: [Emc-users] Anilam linear encoder output voltage <1v... any ideas?

Thanks for the response! measured with a fluke hand held scope. and its not differential. how old is very old? this machine is from the late 80's (87 i think). unfortunately, no manual info on the scales... thanks chris! -pat On Sat, Nov 21, 2009 at 12:18 PM, Chris Radek wrote: > On Sat, N

Re: [Emc-users] Anilam linear encoder output voltage <1v... any ideas?

On Sat, Nov 21, 2009 at 12:09:00PM -0500, Pat Lyons wrote: > Hey folks, > > just inquiring about the output of my anilam linear encoder being less than > one volt in amplitude... a full 5v is applied, but the pulses coming out > only hit like 0.3vI pulled apart the connector to find some oil

[Emc-users] Anilam linear encoder output voltage <1v... any ideas?

Hey folks, just inquiring about the output of my anilam linear encoder being less than one volt in amplitude... a full 5v is applied, but the pulses coming out only hit like 0.3vI pulled apart the connector to find some oil in between the pins but wiped it out and still have the same problem.

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Jeshua Lacock wrote: >On Nov 21, 2009, at 4:40 AM, Gene Heskett wrote: s/infinity/affinity :) >>> >>> Doh! So much for trying to sound intelligent! >> >> Or ENOTENOUGHCAFFIENE, it is quite early here and the pot hasn't >> been started >> yet. Its purely accidental

Re: [Emc-users] How Exactly does a Mister Work

I don't want to rain onto this parade, but what has this to do with EMC? Please visit a forum oriented towards the core of this discussion, specially considering that the majority of information posted in this thread is flawed to say the least. Actually it makes my brain hurt. This might sound arro

Re: [Emc-users] Compact Flash card for Hard Drive

I have done quite a few of these now. Unless you know your card adapter can handle UDMA, disable it. Not all card adapters are wired for UDMA and you get all sorts of problems if you try to use UDMA on them. As far as I know all SATA CF card adapters can handle UDMA. It may give you a bit more

Re: [Emc-users] Compact Flash card for Hard Drive

David, I googled 'boot linux from compact flash' and got 831,000 results. I looked at a couple, for example www.linuxjournal.com/article/4551 which seemed to give a pretty good explanation of how to boot linux from a CF card. Several people have done this, I think one of the guy's in the CAMS

Re: [Emc-users] How Exactly does a Mister Work

On 11/21/2009 04:03 AM, Erik Christiansen wrote: > On Fri, Nov 20, 2009 at 05:10:18PM +, Leslie Newell wrote: >> Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it will >> strip oxygen out of the CO2. That is also the reason why you should >> never use a CO2 fire extinguisher on

Re: [Emc-users] Compact Flash card for Hard Drive

David Winter wrote: >Dear All, > Anyone used a CF card as a hard drive? I thought I read >here that someone has done it > > Les Newell did it. >but I searched the wiki and didn't find anything. > Here's his wiki page:

[Emc-users] Compact Flash card for Hard Drive

Dear All, Anyone used a CF card as a hard drive? I thought I read here that someone has done it but I searched the wiki and didn't find anything. I have a card and adapter which I have partitioned with fdisk and formatted using format c: /s ( DOS ) but my PC won't boot

Re: [Emc-users] Help with custom GS2_vfd module

I've built a gs2-based VFD driver for the Toshiba VF-S11 which is not as broken as the Huanyang but clearly qualifies for the "stupid Modbus implementations" bingo (for instance all single-register reads & writes) it's at http://git.mah.priv.at/gitweb/vfs11-vfd.git sounds you'll have to do so

Re: [Emc-users] How Exactly does a Mister Work

2009/11/21 Jack : > Knowing how much would be part of the art of using this method.  I would think > that you would always want just a little more so as to overfill it to a bit > more > than the sprue will hold. but not so much that it overflows onto the kitchen worktop. -- atp --

Re: [Emc-users] How Exactly does a Mister Work

>> >>One of the beauties of casting with aluminothermic reactions is there >>is no crucible used (or furnace)! >> >>You plug the sprue (entry) going to the mold cavity with a thin sheet >>of metal (that is melted once the molten metal reaches it), and put >>the chemical on top. The slag melts to th

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Jeshua Lacock wrote: >On Nov 21, 2009, at 4:40 AM, Gene Heskett wrote: >> And it took 20 minutes to reach that state? Wow! And I assume the >> titanium >> was suitably 'cast' once the reaction was used up & things cooled. >> What does >> one use for a casting mold/cr

Re: [Emc-users] How Exactly does a Mister Work

On Sat, Nov 21, 2009 at 05:00:13AM -0700, Jeshua Lacock wrote: > One of the beauties of casting with aluminothermic reactions is there > is no crucible used (or furnace)! Would another beauty be that TiO2 is cheap enough to put in paint and plastic, but Ti metal costs a mozza? I can't quite get

Re: [Emc-users] How Exactly does a Mister Work

Hello Gene, I take this discussion about welding and combustibles as an oopportunity to clarify a few things. 1. CO2 is used in arc welding only for old soft iron (mild steel) in order to maintain the percentage of carbon of the components also in the seam material. It's a balance reaction of c

Re: [Emc-users] How Exactly does a Mister Work

On Nov 21, 2009, at 4:40 AM, Gene Heskett wrote: >>> s/infinity/affinity :) >> >> Doh! So much for trying to sound intelligent! > > Or ENOTENOUGHCAFFIENE, it is quite early here and the pot hasn't > been started > yet. Its purely accidental that I caught that this time of the > morning. > Dia

Re: [Emc-users] How Exactly does a Mister Work

On Nov 21, 2009, at 4:40 AM, Gene Heskett wrote: > And it took 20 minutes to reach that state? Wow! And I assume the > titanium > was suitably 'cast' once the reaction was used up & things cooled. > What does > one use for a casting mold/crucible material at those sorts of temps? P.S. O

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Jeshua Lacock wrote: >On Nov 21, 2009, at 4:11 AM, Gene Heskett wrote: >>> Generically speaking, Thermite is referred to an "aluminothermic" >>> reaction. It is aluminum's high infinity for oxygen that strips the >>> oxygen away from the iron oxide. >> >> s/infinity/af

Re: [Emc-users] How Exactly does a Mister Work

On Sat, Nov 21, 2009 at 03:25:01AM -0700, Jeshua Lacock wrote: > > On Nov 21, 2009, at 3:03 AM, Erik Christiansen wrote: > > > On Fri, Nov 20, 2009 at 05:10:18PM +, Leslie Newell wrote: > >> Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it > >> will > >> strip oxygen out of

Re: [Emc-users] How Exactly does a Mister Work

On Nov 21, 2009, at 4:11 AM, Gene Heskett wrote: >> Generically speaking, Thermite is referred to an "aluminothermic" >> reaction. It is aluminum's high infinity for oxygen that strips the >> oxygen away from the iron oxide. > > s/infinity/affinity :) Doh! So much for trying to sound intelligen

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Jeshua Lacock wrote: >On Nov 21, 2009, at 3:03 AM, Erik Christiansen wrote: >> On Fri, Nov 20, 2009 at 05:10:18PM +, Leslie Newell wrote: >>> Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it >>> will >>> strip oxygen out of the CO2. That is also th

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009, Erik Christiansen wrote: >On Fri, Nov 20, 2009 at 05:10:18PM +, Leslie Newell wrote: >> Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it will >> strip oxygen out of the CO2. That is also the reason why you should >> never use a CO2 fire extinguishe

Re: [Emc-users] How Exactly does a Mister Work

On Saturday 21 November 2009 11:03:23 Erik Christiansen wrote: > If the cutting operation is hot enough to dissociate CO2, then there'd > better not be any oil about, especially as mist, unless Gene has his > detonation-deadening earmuffs on tight. ;-) If the heat produced by the cutting operation

Re: [Emc-users] How Exactly does a Mister Work

On Nov 21, 2009, at 3:03 AM, Erik Christiansen wrote: > On Fri, Nov 20, 2009 at 05:10:18PM +, Leslie Newell wrote: >> Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it >> will >> strip oxygen out of the CO2. That is also the reason why you should >> never use a CO2 fire exti

Re: [Emc-users] How Exactly does a Mister Work

On Fri, Nov 20, 2009 at 05:10:18PM +, Leslie Newell wrote: > Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it will > strip oxygen out of the CO2. That is also the reason why you should > never use a CO2 fire extinguisher on magnesium fires. However, it is extensively used in

Re: [Emc-users] Help with custom GS2_vfd module

Hi, The problem is that the protocol used by the Huanyang HY02D223B is not Modbus compliant. As I believe it, the implementers of the Modbus software in the VFD have not understood the Modbus spec, and incorrectly implemented. it. From a post on the Machsupport forum I wrote; http://www.machsu