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Beginner Escher Locking Lizard Puzzle

  • Machine Type:
    CNC Router
    Bit or Laser Size:
    1/8" stock bit
    Feeds & Speeds:
    150 IPM
    1/4" fanfold foam (used in home construction) or you can use acrylic as shown below
    I did my best to get it a close as possible, but its not easy because if you change one side the receiving end has to change as well and it sets off a chain of changes :)

    First the lizards locked and unlocked in the foam
    26858=10240-2011-02-17 14.49.19_ (Small).jpg

    Lizard laser cut in acrylic

    DSC00663aaa (Small).jpg
    DSC00662aaa (Small).jpg

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  1. Lofton Harris
    PS. I plan to use 1/4" acrylic.
    1. Mark Carew
      Hello Lofton,
      Sounds like a great first project! Yes I would cut one at a time. I made this back on my old cnc machine but the process will be exactly the same. I would use a 1/8th bit (I like that size you could go smaller) and make to scale the lizard to fit in the 4.5" MiniMill size. The lines on the lizard are just shallow center line cuts (for looks) Don't forget to add a couple 'bridges' in your tool path to make sure your part stays.
      Mark Carew, Aug 20, 2017 at 11:56 AM
    2. Mark Carew
      All the best with your project please be sure to post your version as a project as well please, can never have too many lizards! and other will learn from your methods. Have fun!
      Mark Carew, Aug 20, 2017 at 11:56 AM
  2. Lofton Harris
    Hiya, Mark! I'm about to embark on my first CNC project with my mini-mill and this looks like a good one. Questions: did you start with one large sheet of material or were the pieces cut individually? The mini mill has limited cut volume so cutting each piece separately seems to make sense. Two: I'll probably use Fusion360 to execute the cutting via a Smoothieboard. Any advice on settings would be helpful.

    Obviously I am a newbie at this and need any guidance you can offer. Thanks!
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