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  1. Replies
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    1,051

    I know this won't help, but the last time I had...

    I know this won't help, but the last time I had to drill a 1/4" hole through a bolt I put in a 6mm electrode, picked up on the end of the bolt with the electrode, cranked up the settings, started it...
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    326

    For a while it seemed like every time we shut...

    For a while it seemed like every time we shut down some of our older Sodick WEDM machines for a long weekend or shutdown to 'save the company money' we ended up with a good chance the computer...
  3. Replies
    27
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    8,163

    The one benefit I think the end users see from...

    The one benefit I think the end users see from prusa using so many 3d printed parts is they have 600 machines running prints 24hrs a day, which means they have lots of opportunity to see problems...
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    34
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    2,073

    I think that most any machine you run 480V to you...

    I think that most any machine you run 480V to you can just run an ethernet cable to or fiber to, so no one really does it. I can get behind not wanting to pull another cable in an already installed...
  5. Replies
    34
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    2,073

    Assuming it is a 3phase 480v system check out...

    Assuming it is a 3phase 480v system check out what this company did: https://www.egauge.net/docs/277v-hpt-manual.pdf

    The important part is the lower half of page 5. It looks like you can use a...
  6. Replies
    7
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    607

    I found it! We used Net-Inspect. Supply Chain...

    I found it! We used Net-Inspect. Supply Chain Management and Quality Management Software | Net-Inspect

    We started off using it for AS9102 First Articles, then for measurement collection and SPC,...
  7. Replies
    7
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    607

    Electronic micrometers, calipers, depth gages etc...

    Electronic micrometers, calipers, depth gages etc can be connected to the computer either by USB or wireless. Hit one button and the number is entered for you without risk of a typo. Electronic...
  8. Replies
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    2,867

    You mean like Alnico? :D Alnico - Wikipedia...

    You mean like Alnico? :D Alnico - Wikipedia
  9. If you are removing .01" or more, you should be...

    If you are removing .01" or more, you should be removing all of the recast and remelt layers of any EDM process. Your etching process after the polishing should remove a tiny bit more as well. Since...
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    1,044

    That Elox setup was pretty unique and was setup...

    That Elox setup was pretty unique and was setup by the guy who I learned EDM from. The part was ring shaped and all of the holes were about 10 degrees off axis to the Z. That is they were in a cone...
  11. Replies
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    592

    This is true and typically I have seen...

    This is true and typically I have seen qualification spheres at Ø.750 or larger.

    The error you see when the probe direction does not match the surface you are checking is called cosine error and...
  12. Replies
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    592

    The size of the qualification sphere is pretty...

    The size of the qualification sphere is pretty irrelevant. The qualification sphere is telling the CMM where your current tip is in relation to the first calibrated tip, it also tells the CMM the...
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    1,044

    Another thought: If this is a repeat job, and...

    Another thought: If this is a repeat job, and the holes are a consistent pattern, die sinking it with a multi electrode holder can be faster so long as you can get the flush where it is needed. ...
  14. Replies
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    1,044

    You can make an entire career on EDM hole...

    You can make an entire career on EDM hole drilling quite easily, there are 30+Million cooling holes in a modern gas turbine. I'll try to answer your questions in the same order you gave them. There...
  15. Replies
    24
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    1,547

    I think the others don't see the value in...

    I think the others don't see the value in collecting an analyzing data that the machines already produce. In the past I did long term monitoring on our CNC EDM machines in house and we knew that...
  16. Thread: Coolant mixer

    by pb1
    Replies
    26
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    2,237

    That wouldn't have worked at my last shop. We...

    That wouldn't have worked at my last shop. We were adding 200 gallons of coolant a day! We had a mixer that pulled coolant from a 55 gallon barrel on wheels with a hose that fed it from a spigot on...
  17. Replies
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    1,607

    It might be a better fail-safe to use a deadman's...

    It might be a better fail-safe to use a deadman's switch (I guess they are called enabling devices now). It is quicker to open your hand/finger to release a momentary switch than to push an e-stop...
  18. Replies
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    The aerospace industry has been doing something...

    The aerospace industry has been doing something similar with LASER and a wire or powder feeder for overhaul and repair for the past ~20 years or so. It is often cheaper to repair and re-machine a...
  19. Replies
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    We have a few dozen Sunnen bore gages here and...

    We have a few dozen Sunnen bore gages here and rarely set them with the setting fixture. We supply them to the floor guys with a ring gage or size blocks with end caps. Given the choice of using...
  20. Thread: EDM book

    by pb1
    Replies
    4
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    831

    No worries, I can be a bit too pedantic at times....

    No worries, I can be a bit too pedantic at times. I started as an EDM operator some years ago and then progressed to programming, setup, then applications engineer, and had a meter in the back of...
  21. Thread: EDM book

    by pb1
    Replies
    4
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    831

    Hi Marcus, I believe this is slightly out of...

    Hi Marcus,

    I believe this is slightly out of order. It was my understanding that the voltage/electrical potential between the electrode and the workpiece gets high enough that the dielectric...
  22. If the majority of your prints come through as...

    If the majority of your prints come through as Solidworks I can see the benefit of using their inspection module. Typing in all of the dimensions, especially when prints can have upwards of hundreds...
  23. Replies
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    That enclosure looks better than the Ikea Lack...

    That enclosure looks better than the Ikea Lack enclosures I keep seeing.
  24. Replies
    53
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    30,764

    If he worked there he would have called it an...

    If he worked there he would have called it an Original Prusa.
  25. Replies
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    That appears to be a 2 port PS/2 KVM switch. I...

    That appears to be a 2 port PS/2 KVM switch. I doubt it has much to do with the CMM itself.
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