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LASER CUTTING DOLLAR TREE FOAM BOARD HELP!

Discussion in 'Concepts and Ideas' started by paulofthepark, Feb 13, 2018.

  1. paulofthepark

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    Hi, I want to get a Acro setup with a diode laser to cut Dollar Tree foam core board for RC planes. I get "speed build kits" that are precut and look really good. I think they use industrial co2 laser cutters. I'd like to find out how to cut ~50% and 100% through. I have pictures of the cut I want to do. the pics foam board is brown, mine would be white. I already have some designs in sketchucam and want tot get them out of the computer.

    Can you do that with a Diode laser?

    on a mission,
    Thanks for your help and time!

    Paul
     

    Attached Files:

  2. Rob Taylor

    Rob Taylor Veteran
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    Brown will cut better with a diode laser (darker colour, more absorption). Dollar Tree also has black foam board, sometimes. Might be worth a try.

    Controlling your focal angle/z-height and travel speed will help there, but 3mm might be a tad much for single-pass on a diode without getting all burny and melty. You'd probably end up with a multi-pass project. Which could work in your favour- the final pass you could adjust the laser on/off in the g-code and actually perforate out the second side of paper, so it all just punches out of the sheet when you're ready.

    If you want to do it in a single pass, you're probably looking at 20W or so of CO2 power (I'd guess, not having run a CO2 laser).
     
  3. paulofthepark

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    Thanks for the input. I appreciate your time
     
  4. David the swarfer

    David the swarfer OpenBuilds Team
    Staff Member Moderator Builder

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    SketchuCam will generate multipass for laser. all passes will be at the same power but they are clearly labelled in the Gcode making it easy to search and replace power settings etc.

    What I will do once I set up my laser is generate some gcode that draws a series of lines at different power settings.
    and then another file that draws the same series at say 50% and 100% power but at different feed speeds.
    Then for any new material I can just run the test files to figure the settings I will need for engraving or cutting in that material.
     
    JustinTime likes this.

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