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Thread: Galvo surpassing it's scan angle

  1. #11
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    Quote Originally Posted by allthatwhichis View Post
    If you are using a QM2000, you may have set a frame to use projection zone 3, which is used for bounce mirrors and usually runs at 100% scan angle by default and is not changed by your main scanner size setting. Some of the beam shows like Melody, Paradise, and my beam shows use this zone to project beams way outside the normal zine size to hit bounce mirrors for added effect. You should be able to use the "advanced" frame window in LD2000 to see what zone your frame is assigned to.

    You may also have zone 4 set to a larger scan angle and a lot of beam shows use zone 4 for atmospherics instead of zone 1. Check the size of zone 4 also.

    Also use the 12K pattern at 30k to test; I am not sure what the purpose of the 30k test pattern is for since it is so small. Everyone I know uses the 12k test pattern at their desired scan angle to test.
    yea
    and my no it's not the zone, on 100% I do not had the size as that short jump had.
    but you mean outside the zones for bounce mirrors that it can even go bigger then the 100% size on zone1?

  2. #12
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    Second thing *I had this at the start*
    If I don't add many points in for example a line, I have a high chance at getting a red leaking streak on some lines, I know that adding to few blanking point can cause this, but in most of the cases only red does this.

    I can off course correct this with color shift, but it will only work great for some frames, for most of the time 4 works good enough, but for example an frame filled with dots can still give me some leaking to the side.

    adjusting color shift can fix this but then the streak appears in all others :P
    The red module is a dual red laser, I think it's because the red lasers analog blanking is delayed? or the galvo's just fail at doing properly at certain situations?
    Again it doesn't always happen, only in beamshows, not in graphics.
    color shift is set to 4

    Oh and andy, you mean the ilda 12k test pattern ? or ilda 30k?
    I think you mean 12k right?

  3. #13
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    Quote Originally Posted by masterpj View Post
    I have a high chance at getting a red leaking streak on some lines
    Sounds like you need a colour correction board.
    http://shop.stanwaxlaser.co.uk/dz-co...oard-252-p.asp

    Quote Originally Posted by masterpj View Post
    I think it's because the red lasers analog blanking is delayed?
    No, the red is the fastest. You'll need to use the colour board to delay the signals of the red to match the "slowest" laser, be it green or blue (473nm)
    - There is no such word as "can't" -
    - 60% of the time it works every time -

  4. #14
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    Lightbulb

    Ilda 12k pattern; it is the one that fills the whole frame. The 30k test pattern only fills a small portion of a frame.

  5. #15
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    Quote Originally Posted by danielbriggs View Post
    Sounds like you need a colour correction board.
    http://shop.stanwaxlaser.co.uk/dz-co...oard-252-p.asp


    No, the red is the fastest. You'll need to use the colour board to delay the signals of the red to match the "slowest" laser, be it green or blue (473nm)
    hmm ok weird that the QM can't do this in software.
    Anyway looks great, not sure if my projector has the space for it though.
    is it easy to hookup?

  6. #16
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    Quote Originally Posted by masterpj View Post
    hmm ok weird that the QM can't do this in software.
    Anyway looks great, not sure if my projector has the space for it though.
    is it easy to hookup?
    Hi,

    I don't have a QM but FB3 with Quickshow and there it can definitely be done in software. I think it should be doable as well in QM since Quickshow is only the low cost software.

  7. #17
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    Quote Originally Posted by andythemechanic View Post
    Hi,

    I don't have a QM but FB3 with Quickshow and there it can definitely be done in software. I think it should be doable as well in QM since Quickshow is only the low cost software.
    Are you sure this can be done in QS like a color correction board? You can adjust the power of the lasers to match each other but I do not think you can adjust the "rise and fall" of each laser's blanking to match like you would on a color board. I also believe I remember Bill saying this is not something he would put into their software as it fixes somethings but causes issues in other areas, mainly how rasters look, but I may be mistaken. I know you cannot do it on the QM; that is why DZ made the color correction board in the first place... and I think it is based on a circuit from Bill.

  8. #18
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    Quote Originally Posted by andythemechanic View Post
    Hi,

    I don't have a QM but FB3 with Quickshow and there it can definitely be done in software. I think it should be doable as well in QM since Quickshow is only the low cost software.
    I can do it in QM yes... but not for each color.
    there is indeed a color shift and blanking shift.

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