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Metal Stuff / Re: Sinker EDM question
« Last post by Alphawolf45 on Today at 06:28:00 PM »
 You make no sesnec.
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Metal Stuff / Re: Sinker EDM question
« Last post by John Swift on Today at 05:35:02 PM »
quote

"I didn't get the job as somebody with darker skin and a lower grade was give the position. Not that I care. Just interesting".

many bosses are second rate   but they know enough not to don't take on any one thats  too bright ,
threaten their position and take their job

                       John
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Project Logs / Re: PCB UV exposure box
« Last post by awemawson on Today at 05:27:05 PM »
Well I stood there pushing the bell for hours hoping for a brew, but gave up and found a cafe  :doh:
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Metal Stuff / Re: Sinker EDM question
« Last post by awemawson on Today at 05:18:51 PM »
Somewhere on the forum is a thread where I was sinking a 1/2" square using a copper electrode and I seem to remember that Pete-W asked how fast it went - can't for the life of me find the thread but it's here somewhere  :med:

 . . or it may have been the thread about making a big grub screw  :scratch:

As for arcing - that's bad. The electrolyte combined with the electronics should be totally preventing arcing. The discharge should happen in the last few microns of approach and the electronics cut off as soon as it happens

Oelheld have (or certainly had) a good downloadable EDM handbook on their site in the IONO-PLUS area.
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Metal Stuff / Re: Sinker EDM question
« Last post by Alphawolf45 on Today at 05:01:13 PM »
 10 years ago I applied for a job at a big company.The job was for operating a cnc mill.....You know what kind of job that is-- basicly loading and unloading and loading and unloading parts into the machine.. Okay I had to take a test..I arrived several minutes after the test had begun.. I noticed that I was the only person in the room without a calculator. However I finished first...Test results showed that I had finished highest that was graded or considered...I didn't get the job as somebody with darker skin and a lower grade was give the position. Not that I care. Just interesting.
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Metal Stuff / Re: Sinker EDM question
« Last post by Alphawolf45 on Today at 04:16:32 PM »
  Shoot man, I used to sit in my backyard watching my dogs  and write out G-code for my oldest cnc mill and I'd compute the trigonometry in my head. I can barely do anything anymore. Doc says it will be 6 months until my brain gets back to normal.. Cancer is bad , Chemo is the killer of the bad cells and also those we need to figure stuff out...I dunno, my Mother died from my same cancer 1 month before I got my diagnosis. Dying is in the future of all of us,, Let me think clearly before I take the dirt nap.Dull brain is pretty awful..
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Metal Stuff / Re: Sinker EDM question
« Last post by kayzed1 on Today at 02:47:19 PM »
Yeah ,before I had chemo therapy screw with my head I was maybe  half as bright as Awemawson.. Now I need an extra heaping of  help.. :doh:

I thought it was only me..tis a bit of a bugger when you think you no what to do with a project only to find you need help, the help you used to give others before the
big C..  Keep on keeping on thou.
Lyn.
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Project Logs / Re: PCB UV exposure box
« Last post by AdeV on Today at 01:51:57 PM »
It's my doorbell!

I think I'm excused for forgetting - it was September 2017 you started on this project!

Totally excused... I thought the forum must have it's years wrong at first... 15 months since I figured it'd "only take a weekend". Oops!

I wonder how many visitors I've missed....?  :scratch:  :lol:
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Metal Stuff / Re: Sinker EDM question
« Last post by Alphawolf45 on Today at 01:49:25 PM »
 Yeah ,before I had chemo therapy screw with my head I was maybe  half as bright as Awemawson.. Now I need an extra heaping of  help.. :doh:
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Metal Stuff / Re: Sinker EDM question
« Last post by seadog on Today at 01:31:47 PM »
awemawson is your man. He has a working EDM. I'm sure he'll be along soon.
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