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IndustryArena Forum > MetalWorking > General Metalwork Discussion > Has anyone used this edge finder?
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  1. #1
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    Has anyone used this edge finder?

    The price seems fair..




  2. #2
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    No... never heard of it. How about a link.

  3. #3
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    http://www.lasercenteredgefinder.com/

    for the money it looks pretty cool

    this is what i use ,a bit more in price but well worth the money
    http://www.wenzel-wkp.nl/Nieuws/3D_t...ster_ip67.html

  4. #4
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    lazer seems kinda funky to me , i sure wouldn t use it in a machine shop

    wood work i would think it may be ok

  5. #5
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    Quote Originally Posted by dertsap View Post
    lazer seems kinda funky to me , i sure wouldn t use it in a machine shop .. wood work i would think it may be ok
    Interesting synopsis.

    Why would wood make a difference with a laser dot?

    Without making this too hard, do you have any concrete conclusions metal would present kind of a problem?

    The one I own seems to work ok on metal (no wood -yet).
    I just "split" the red dot when aligning scribe marks.
    (saves using the 'ol centerpunch approach or a wiggler)

    Pres

  6. #6
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    Yap, I like it

    You are not going to get +-.002 out of it but +- .005 is more along the range. For a lot of work that is more than adequate. What I find it most useful for is very quick positioning holes that have been previously laid out.

    An example would be a series of transfer punch marks indicating where holes need to be placed. Mating to an existing pipe flange is a good example. The old way; if there were an even number of holes, I could measure the bolt circle and calculate the x and y positions and take into account any rotation of the pattern. With the laser pointer I hold the piece in place, mark the hole locations, clamp down the piece, position it under the laser and drill, reposition and drill. I do not need to measure or calculate to get the holes right where I want them.

    This little device has saved me a lot of time.

  7. #7
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    Quote Originally Posted by Pres View Post
    Interesting synopsis.

    Why would wood make a difference with a laser dot?

    Without making this too hard, do you have any concrete conclusions metal would present kind of a problem?

    The one I own seems to work ok on metal (no wood -yet).
    I just "split" the red dot when aligning scribe marks.
    (saves using the 'ol centerpunch approach or a wiggler)

    Pres
    is this simple enough for you , machinist tolerances are tighter than a carpenters !

  8. #8
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    Quote Originally Posted by geo.agun View Post
    You are not going to get +-.002 out of it but +- .005 is more along the range. For a lot of work that is more than adequate. What I find it most useful for is very quick positioning holes that have been previously laid out.
    Thats pretty much what I had figured. I don't really need an edge finder but for the price I may pick one up.

  9. #9
    I have one, and don't find it any good for picking up edges. Seems to pick up pin pricks quite well though.

    I got an lighted electronic edge finder... I am getting good use out of that one. I don't have to worry about it rubbing while I fiddle with the computer to input the offset.

    -Jeff

  10. #10
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    I also think there are far to many variables in a non-contact referencing device to trust it much below 1-2 beam widths and even that could be exponential the further distance it is pointing at IF the beam is not rotated on the axis to verify a true centerline.

    Their video shown in operation and only one instance was it rotated in the spindle. The runout of the beam was far too obvious.

    I don't think it is a fair comparison in competition to a standard edge finder or indicator, but I can see where it would handy in a few rough and rapid setups. Then take a true reference cut to set 0,0.

    If the head is out of tram or the work holder doesn't hold it properly on center or straight, I liken it's trustworthyness on par with a square and a plumb bob!

    DC

  11. #11
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    I will have my guys stick with the regular edge finders, the laser to me is just like digital calipers just dont trust them
    individual who perceives a solution and is willing to take command. Very often, that individual is crazy.

  12. #12
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    (see link below)
    This is no doubt my favorite edge finder. It is expensive, but you get what you pay for. I can pick up x, y, AND z off a corner in about 30 seconds total, and NOT have to offset for edge finder diameter. I experience .0001" - .0003" repeatability in x and y, and about 0.0005" in z.

    You will also need a ring gage to calibrate it in your particular machine.

    The only more accurate method that I know is to use the indicator and gage ring method, but that is a LOT slower.

    http://www1.mscdirect.com/CGI/NNSRIT...MT4NO=18267548

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