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Thread: Primered Canvas from Wal Mart

  1. #1
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    Primered Canvas from Wal Mart

    Bought some stuff to practice burning from Wal Mart and figured I'd give the 8x10, 3 for 2.97 primered canvas a shot. Guessed power and speed and it turned out kinda nice.
    The wood grain was part of the original image. just wondered if anyone else has tried it.

    Linn

    11056820_10205346728540723_521651461_n.jpg
    Boss 1416 60W
    Retired Navy Corpsman

  2. #2
    We use to do that at our shop all the time. We would add a texturing medium to the canvas so the laser did not interfere with the structural integrity of the stretched canvas. We would also paint the background first then etch. Then add more color into the etching to create an interesting effect. Loads of fun!

  3. #3
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    Color fill would be pretty easy huh? Did you use acrylic paint?

    Linn
    Boss 1416 60W
    Retired Navy Corpsman

  4. #4
    We used oil paint thinned out with a little bit of liquin. so it would wipe into the engraving and not dry to fast onto the background. We wiped the excess off with paper towels. i will have to look on my laptop see if i find a picture

  5. #5
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    I coat them with gesso and then spray on a coat of black over that.
    Then laser off the top coat of paint. (very fast, low power.. it's only
    a thin coat) comes out like scratchboard.
    Attached Images Attached Images
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    I can't find any of them. So I have to buy them again.

  6. #6
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    When you say canvas are you referring to the canvas that people paint on like artist. If so never new could do that Thought it would burn threw the material
    STILL A NEWBY LEARNING MY WAY
    Junior Hall
    Boss laser
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  7. #7
    Junior if you get your settings right you can laser just about any material, I engrave paper aS a test piece before using leather or wood. I also have lasered jeans with out burning thru.

    Quote Originally Posted by Junior hall View Post
    When you say canvas are you referring to the canvas that people paint on like artist. If so never new could do that Thought it would burn threw the material
    If the Help and advice you received here was of any VALUE to you PLEASE! Become a Contributor
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  8. #8
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    Nicely done, Chuck.
    Hi-Tec Designs, LLC -- Owner (and self-proclaimed LED guru )

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  9. #9
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    Great Chuck, thanks for sharing :-D
    Edu

    Laserpro Spirit 30w

  10. #10
    Chuck,

    These are amazing! I know our machines are quite different, but what settings did you use? And what paint did you use? I'm assuming a rattle can, but was there a specific brand and sheen? I have some great ideas for canvas, but haven't been able to get it right. Never thought of adding gesso. How smoothly do you apply? Sorry for all the questions, but thanks in advance for any answers!
    Rabbit Laser 36 x 48, 80 watt laser
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  11. #11
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    Thanks!
    The settings are just what I need to get through the paint.. it has NOTHING to do with
    what is under the paint, because if you go that far, it's too much. I don't remember
    off the top of my head, but I think it was the same settings I used for cheap mirrors..
    it's just enough to break through the top coating. You never reach the canvas, so it
    doesn't burn.

    As for prep, I put 3 coats of gesso on them and sanded between coats. If I go too hot,
    at least there's some backup there. (gesso has clay in it) They're not thick coats, just
    what you'd paint on with a brush. Not really thin coats, either. It's thick stuff, so just
    paint it on evenly. Might not even need 3 coats, but it makes me feel better in case
    I get thin spots. Then again, if my settings were accurate, I probably wouldn't need the
    gesso, either.

    The smoother you sand the gesso, the higher resolution you can get.

    I use the rattle can stuff.. although not the high temp or engine enamel. Krylon and
    Rustoleum are about all I can get here, so I know it's one of those.. but no preference.

    Once you dial it in, it's an easy technique to use, and can be quite effective. I find that
    it is well suited to old advertisements.. woodcuts.. they look dated to start, and this
    keeps the look. Very popular with a distressed frame as bathroom decorations. Finding
    good images in the public domain is key..
    Avatar courtesy of the awesome Frank Corker
    30w Mercury and workbench so full of misc. tools that
    I can't find any of them. So I have to buy them again.

  12. #12
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    Very nice. I'd like to try this but what is gesso? Not a term I'm familiar with at all.
    Hilton Lister. NZ
    GCC Spirit 60w. Meistergram 912, Gravograph IT, Old Roland Vinyl Cutter, Hand engraving, Retired

  13. #13
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    Gesso is Italian for chalk / gypsum.
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  14. #14
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    Quote Originally Posted by Hilton Lister View Post
    Very nice. I'd like to try this but what is gesso? Not a term I'm familiar with at all.
    True gesso is basically a chalk-filled paint... it does a wonderful job at sucking up paint that's put on top. There are other versions out there called gesso, but the makeup is a bit different and cannot truly be called gesso. that said, the other versions also often offer more benefits, such as higher flexibility, etc.
    Hi-Tec Designs, LLC -- Owner (and self-proclaimed LED guru )

    Trotec 80W Speedy 300 laser w/everything
    CAMaster Stinger CNC (25" x 36" x 5")
    USCutter 24" LaserPoint Vinyl Cutter
    Jet JWBS-18QT-3 18", 3HP bandsaw
    Robust Beauty 25"x52" wood lathe w/everything
    Jet BD-920W 9"x20" metal lathe
    Delta 18-900L 18" drill press

    Flame Polisher (ooooh, FIRE!)
    Freeware: InkScape, Paint.NET, DoubleCAD XT
    Paidware: Wacom Intuos4 (Large), CorelDRAW X5

  15. #15
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    Thank you for the explanation.
    Hilton Lister. NZ
    GCC Spirit 60w. Meistergram 912, Gravograph IT, Old Roland Vinyl Cutter, Hand engraving, Retired

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