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Thread: Burning Issues... Please help

  1. #1
    Join Date
    Nov 2014
    Location
    Raleigh, NC
    Posts
    6

    Default Burning Issues... Please help

    Hey Everyone! I just had the pleasure of burning a hole through my work piece and into the sacrificial table (vacuum hold down...). I am cutting 3/4" furniture grade Pine plywood with an Onsrud .25" compression bit. I have a PRTalpha with a 5hp Colombo. The feed rate is 6" per second & rpm is set to 12,000. I have been trying to cut 6" letters out of the 3/4" furniture grade pine plywood. The problem is I keep getting smoke every time I try to make a cut. I have fried two bits and burnt a hole in my table.... any help is greatly appreciated.

    Cheers,
    Sal

  2. #2
    Join Date
    Jan 2004
    Location
    iBILD Solutions - Southern NJ
    Posts
    7,986

    Default

    Try these settings:

    MS,2,1 @ 14,000 RPM and .25" pass depth with a fresh cutter.

    There is NO WAY the tool is going to go 6 IPS on a 6" letter. This will result in clunky movements and quality will be in the gutter.

    Try my settings and report back. They are just a baseline, but you can feather in more speed as you see fit later.

    Also, choose to ramp into the cut on the profile toolpath options tabs in VCarve Pro.

    -B
    High Definition 3D Laser Scanning Services - Advanced ShopBot CNC Training and Consultation - Vectric Custom Video Training IBILD.com

  3. #3
    Join Date
    Nov 2014
    Location
    Raleigh, NC
    Posts
    6

    Default Awesome.

    Brady, you sir are the man!! You also just signed up for the many questions I will have during my learning process with this awesome machine. Thanks so much - world of difference. Have a great weekend.

    Cheers!
    Sal

  4. #4
    Join Date
    Jan 2004
    Location
    iBILD Solutions - Southern NJ
    Posts
    7,986

    Default

    Sal - Glad you got it sorted!

    Spend some time searching various topics on this forum. There's LOTS of good info right there for the reading.

    -B
    High Definition 3D Laser Scanning Services - Advanced ShopBot CNC Training and Consultation - Vectric Custom Video Training IBILD.com

  5. #5
    Join Date
    Nov 2014
    Location
    Raleigh, NC
    Posts
    6

    Default Thanks

    Will do Brady! Thanks for the great advice. Cheers my friend!

    -Sal

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