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Type: Posts; User: lerman

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  1. Replies
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    Re: Subroutines with Path Pilot

    Or you could pass the X, Y coordinates to the subroutine as arguments.
    o<eng_A> call [1.5] [1.0]
    o<eng_B> call [1.6] [1.0]
    etc.
    Or you could pass the size, the X, and the Y to the subroutine as...
  2. Replies
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    17,608

    Re: Good idea, and nice work!

    Having multiple points of contact instead of one at each element misses the point of the design. The idea is that with three rods and six balls each making contact at a single point (in the ideal...
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    1,374

    The short answer to the question "what am I doing...

    The short answer to the question "what am I doing wrong" is that it won't mesh because the dimensions are wrong.

    You have this over constrained. The distances between the gears that mesh directly...
  4. Replies
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    2,647

    Plasma cutter? Oxy acetyline? Can handheld...

    Plasma cutter?
    Oxy acetyline?

    Can handheld portable torches cut three inches?

    Ken
  5. Replies
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    1,611

    One thing I noticed is that the space between the...

    One thing I noticed is that the space between the carriages on each rail is smaller than the distance between rails. That can cause skewing of the table and may be the source of your lockup.

    A...
  6. Replies
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    Don't you really just want the parts? Why do you...

    Don't you really just want the parts? Why do you need the dies?

    Ken
  7. Replies
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    1,893

    Why would you want to do it yourself?

    Why don't you just go to a local shop and have them made? Let the shop design and have the tooling made.

    Conway Press - Hole Punch Tonnage Calculator -- suggests that a half ton press might not be...
  8. Replies
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    5,469

    Well, I stand corrected. I just tried to do that...

    Well, I stand corrected. I just tried to do that an couldn't. That leaves me with a question, though. Why do I see some threads that have no prefix? If I look at "New Posts" from the main menu, some...
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    You are not "forced" to chose one of those...

    You are not "forced" to chose one of those options. You can leave it as (no prefix).

    I believe that I got my "Gold Member" Status the old fashioned way -- I bought it. (That is, I made a...
  10. Replies
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    5,469

    In the list of threads, the subject is shown as:...

    In the list of threads, the subject is shown as:

    Build Thread- Learn the truth about BobCAD-CAM

    This doesn't seem to be a "Build Thread".
    Is that the "truth about BobCAD-CAM"? :)

    Ken
  11. Sticky: Is there some reason this thread is in the...

    Is there some reason this thread is in the LinuxCNC (formerly EMC2) forum?

    It certainly seems out of place since it doesn't seem to use LinuxCNC.

    Ken
  12. What are the target resolution and accuracy? ...

    What are the target resolution and accuracy?

    Is continuous rotation required?

    Ken
  13. Replies
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    If I were designing something like this, an open...

    If I were designing something like this, an open or shorted thermistor would cause a shutdown rather than an overheat.

    Ken
  14. Replies
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    Nope. That doesn't have the servo controlled...

    Nope. That doesn't have the servo controlled C-axis. (And it costs a lot more than my mill cost me.)

    Ken
  15. Replies
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    I'd be interested in a lathe headstock to mount...

    I'd be interested in a lathe headstock to mount on the table of my CNC Bridgeport (clone).

    Requirements include:
    1 -- Speed up to around 3000 rpm (minimum)
    2 -- C-axis control with servo control...
  16. Replies
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    Looks good. I disagree about the holders,...

    Looks good.

    I disagree about the holders, though. Instead of that or hanging a tool post off the head, hand multiple tool holders off the head. That gives you gang tooling, and you can use...
  17. Replies
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    2,848

    If you get wind up with aluminum "welded" to the...

    If you get wind up with aluminum "welded" to the cutter, don't throw it out. Throw it my way. :-)

    I'll just soak it in a lye solution (drano and water) for a day, and the aluminum will be gone.
    ...
  18. Replies
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    The answer comes from Featured Technologies...

    The answer comes from Featured Technologies &mdash; Gear Bearings: increased capacity and performance for superior gear drives

    =======
    They provide smooth and accurate control with rifle-true...
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    http://www.fibro.de/xdesk_neu/ximages/265/2361_kur...

    http://www.fibro.de/xdesk_neu/ximages/265/2361_kurveem.jpg
    This design is probably better. It looks like the cam action is intended to provide constant angular output motion for constant input...
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    Sliding versus Rolling

    Either there is space (backlash) between the two faces of the cam and the rollers or the roller must slide rather than roll on at least one face. If a pair of stacked rollers (with some offset) were...
  21. Replies
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    Who configured EMC for you? Did the system ever...

    Who configured EMC for you?
    Did the system ever work?
    If yes, when happened immediately before it stopped working.

    Some possibilities:
    1 -- If it never worked, look at the timing of the signals...
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    If you can rigid tap, you can probably thread...

    If you can rigid tap, you can probably thread mill. That shouldn't care about the gap.

    Ken
  23. Replies
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    Double Whipperstopper

    Instead of making it half the length of the axis, make it two thirds the length. Then stack another one one third the length on top of it.

    You've now provided two supports along the length instead...
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    It seems that many of your complaints are related...

    It seems that many of your complaints are related to an ignorance of linux. That isn't EMCs fault.

    How easy do you think Mach would be to use if you had never seen windows before?

    What is good...
  25. Questions and Suggestion

    Hi John,

    1 -- Am I correct that whenever you say 7-8%, you mean by volume?

    2 -- Could you post the details of the mixtures you are using? What sizes and how much of each size? What...
  26. Replies
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    Your aluminum frame will be dependent on having a...

    Your aluminum frame will be dependent on having a precise level. How good is your level?

    Ken
  27. Replies
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    Try EMC. It's free. Ken

    Try EMC. It's free.

    Ken
  28. Replies
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    Of course there is money in it. If there weren't,...

    Of course there is money in it. If there weren't, people would be in that business.

    Did you mean easy money? In my experience, the best way to make easy money is to work hard.

    Ken
  29. Replies
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    I recently saw a gadget that will track an...

    I recently saw a gadget that will track an eyeball sized retroreflector and give its position within three thousandths of an inch in a 40 foot cube. (I believe I got those numbers right.)

    Do you...
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    EMC is free and will run on a $100 used computer....

    EMC is free and will run on a $100 used computer. It has a gcode interpreter, of course.

    Ken
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