Re: [Emc-users] Coffecup EDM
I've not played with EDM for quite a while. > 10 years so I've forgotten most of what I knew. I know of people that used hardware store lantern oil as EDM fluid. If it sounds like frying bacon you are in the right range. Sounds (npi) like fun. :-) Dave On 06/19/2016 10:07 AM, Nicklas Karlsson wrote: >> On 06/19/16 17:55, Nicklas Karlsson wrote: >>> I tried to tune parameters manually but most of the time is spent either in >>> short circuit or open circuit, >> this is called 'hammering' >> it actually works but for a poor reason. >> if the tools is too far away, you are open >> if the tool is too close, it is shorting >> For a brief time in transit between these 2 states you DO achieve the >> proper position >> and you get _some_ sparks. >> >> the idea is to find the ideal position where sparks occur easily >> yiu can find this if you can control the 'edm servo'. > Then I now how it should look. I didn't expect something good with my Lego > prototype without proper tuning and to low ignition voltage at the first run. > >> ... > You provided exactly the information I needed, thanks! > > > Regards Nicklas Karlsson > > > -- > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > patterns at an interface-level. Reveals which users, apps, and protocols are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity planning > reports. http://sdm.link/zohomanageengine > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Attend Shape: An AT Tech Expo July 15-16. Meet us at AT Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any Interest or Ideas for a Linuxcnc Fest 2016 ?
Hi Stuart, Total change of subject here. Lcnc already had feed driven by a pin. I wonder if anyone has tried monitoring the load on the spindle motor and adjusting for constant load not velocity. What I'm thinking here is slowing down for corners to control chatter. If this really works then it should be useful for the usual hobby machine (wimpy) and for those trying to get better surface quality on production machines. just a random thought. Dave On 06/22/2016 11:09 AM, Stuart Stevenson wrote: > Gentlemen, > I want to reiterate the date is not set in stone (unless we want it to be). > I want to facilitate anyone's schedule so if we have conflicts let's change > the date to resolve them. > anytime will work for me but a week prior or a week later would be great > thanks > Stuart > > > On Wed, Jun 15, 2016 at 2:13 PM, Stuart Stevensonwrote: > >> This will most probably be an October 7th, 8th and 9th event. >> In all honesty anyone can come at any time. >> We schedule it for the entire week including the weekend. People come when >> they can but most get here Thursday and Friday and go home Sunday or Monday. >> We will be set up to start Monday for anyone that arrives then. >> >> On Wed, Jun 15, 2016 at 1:01 PM, Ed wrote: >> >>> On 06/15/2016 10:48 AM, Stuart Stevenson wrote: Gentlemen, I propose the week of Oct 3rd through whenever the last person leaves. Check your schedules against these dates and let the list know if you >>> have conflicts. I think the goal should be to have a schedule set by July 30. That >>> gives us 45 days to make changes and allow time for travel arrangements to be >>> made after July 30. This date is nothing more than my attempt to set a goal to get everyone here and have a good time. The date is fluid on purpose. >>> Will this include a weekend? For myself I can get to something within an >>> days drive and on a weekend. Witchita is at the end of a 12 hr drive. >>> The joys of being your own boss and the only employee. I am a >>> fanboi/user/student more than an integrator or developer. >>> >>> Ed. >>> >>> >>> >>> -- >>> What NetFlow Analyzer can do for you? Monitors network bandwidth and >>> traffic >>> patterns at an interface-level. Reveals which users, apps, and protocols >>> are >>> consuming the most bandwidth. Provides multi-vendor support for NetFlow, >>> J-Flow, sFlow and other flows. Make informed decisions using capacity >>> planning >>> reports. >>> http://pubads.g.doubleclick.net/gampad/clk?id=1444514421=/41014381 >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> >> >> -- >> Addressee is the intended audience. >> If you are not the addressee then my consent is not given for you to read >> this email furthermore it is my wish you would close this without saving or >> reading, and cease and desist from saving or opening my private >> correspondence. >> Thank you for honoring my wish. >> >> > -- Attend Shape: An AT Tech Expo July 15-16. Meet us at AT Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Coffecup EDM
Micro controller sample voltage in the middle of the on period and then I adjusted parameters to value in the middle of the period process got quite, see attached picture. Voltage is also regulated to this voltage rather well. There are no sparks so I guess fluid have some resistance. Maybe food oil is not a suitable EDM fluid at all or there are to much durt into it. On Tue, 21 Jun 2016 08:39:28 +0700 TJoseph Powderlywrote: > Nicklas hello' > could you do another screenshot, but add the oscillator ( on & off > command signal )? > it would be easier to interpret > thanks tomp tjtr33 > > On 06/20/16 00:07, Nicklas Karlsson wrote: > >> On 06/19/16 17:55, Nicklas Karlsson wrote: > >>> I tried to tune parameters manually but most of the time is spent either > >>> in short circuit or open circuit, > >> this is called 'hammering' > >> it actually works but for a poor reason. > >> if the tools is too far away, you are open > >> if the tool is too close, it is shorting > >> For a brief time in transit between these 2 states you DO achieve the > >> proper position > >> and you get _some_ sparks. > >> > >> the idea is to find the ideal position where sparks occur easily > >> yiu can find this if you can control the 'edm servo'. > > Then I now how it should look. I didn't expect something good with my Lego > > prototype without proper tuning and to low ignition voltage at the first > > run. > > > >> ... > > You provided exactly the information I needed, thanks! > > > > > > Regards Nicklas Karlsson > > > > > > -- > > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > > patterns at an interface-level. Reveals which users, apps, and protocols are > > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > > J-Flow, sFlow and other flows. Make informed decisions using capacity > > planning > > reports. http://sdm.link/zohomanageengine > > > > > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- > Attend Shape: An AT Tech Expo July 15-16. Meet us at AT Park in San > Francisco, CA to explore cutting-edge tech and listen to tech luminaries > present their vision of the future. This family event has something for > everyone, including kids. Get more information and register today. > http://sdm.link/attshape > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Attend Shape: An AT Tech Expo July 15-16. Meet us at AT Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users