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Thread: Help with a picture

  1. #1
    Join Date
    Nov 2010
    Location
    Vacaville, Ca
    Posts
    313

    Help with a picture

    I downloaded this picture of Candlestick Park where the 49ers play and was trying to engrave it on a piece of wood. I tried different DPIs and speed but the laser was leaving out parts of it. Like instead of drawing the straight parts of the football field it just engraved dots. Same way with the curver part at the bottom by the plants the laser skipped several places.

    I just brought the image into Lasercut as a image/bmp and then set the laser to engrave.

    Any help will be greatly appreciated.

    BruceCandlestick Park___Circa 2000.jpg
    Hardware: Chinese Laser
    GWeike C1290 80 watt Reci laser
    Home built CNC, Joe's hybrid 4x4
    12" Delta Bandsaw, Jet Table Saw
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    Software: CorelDraw Suite 5x
    PhotoShop 7,

  2. #2
    Quote Originally Posted by Bruce Dorworth View Post
    I downloaded this picture of Candlestick Park where the 49ers play and was trying to engrave it on a piece of wood. I tried different DPIs and speed but the laser was leaving out parts of it. Like instead of drawing the straight parts of the football field it just engraved dots. Same way with the curver part at the bottom by the plants the laser skipped several places.

    I just brought the image into Lasercut as a image/bmp and then set the laser to engrave.

    Any help will be greatly appreciated.

    BruceCandlestick Park___Circa 2000.jpg
    This image won't print much larger than 1" tall. Dividing the pixel resolution (PPI) by the printing resolution (DPI) will give you a rough inch conversion. This image is 297 pixels tall. Engraving at 300 DPI equals about 1". This is just a rough method and doesn't take into account dot gain, etc...
    I design, engineer and program all sorts of things.

    Oh, and I use Adobe Illustrator with an Epilog Mini.

  3. #3
    Hi Bruce...

    My advice would be to collect a higher resolution image of Candlestick Park. I just Google'd "Candlestick". Went to images and asked for high resolution black and white images. I found an image very similar (if not identical) to the one you posted.

    I then took the image into Photoshop and converted it to half tones. The result is an image about 1100 pixels on a side that I believe would engrave very well.

    -Jim-


    Quote Originally Posted by Bruce Dorworth View Post
    I downloaded this picture of Candlestick Park where the 49ers play and was trying to engrave it on a piece of wood. I tried different DPIs and speed but the laser was leaving out parts of it. Like instead of drawing the straight parts of the football field it just engraved dots. Same way with the curver part at the bottom by the plants the laser skipped several places.

    I just brought the image into Lasercut as a image/bmp and then set the laser to engrave.

    Any help will be greatly appreciated.

    BruceCandlestick Park___Circa 2000.jpg
    Jim Coffee
    James Coffee Studios
    Epilog 24TT, 45W, Nikon D7100, Corel Draw, PhotoShop CC, Lightroom CC, etc.
    Escondido, CA

  4. #4
    I worked with this in PS see if it will get you by, not a good graphic to start with, but this may work.
    Attached Images Attached Images
    Martin Boekers

    1 - Epilog Radius 25watt laser 1998
    1 - Epilog Legend EXT36 75watt laser 2005
    1 - Epilog Legend EXT36 75watt laser 2007
    1 - Epilog Fusion M2 32 120watt laser with camera 2015
    2 - Geo Knight K20S 16x20 Heat Press
    Geo Knight K Mug Press,
    Ricoh GX-7000 Dye Sub Printer
    Zerox Phaser 6360 Laser Printer
    numerous other tools and implements
    of distruction/distraction!

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