Thread: Hello from Iran

  1. #1
    Hi everybody
    I want to make laser cutting router to cut textiles (stacked on up to 120 mm in height) . I welcome any proposal and suggestions.

  2. #2

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  4. #3
    Hi all

    Finally I made my first CNC skeleton model in Autodesk Inventor.
    - The structure is composed of square hollow sections of size 100x100x6 mm
    - Structure weights about 555 kg
    - Dimensions: 2500x1500x500 mm (LxWxH)

    I analyzed it to find its natural frequencies. I found the following data:
    - 1st Mode: modal frequency: 60.69 Hz - maximum displacement: 151.2 mm (too high! I think if I use ANSYS more precise results could be found)
    - 2nd Mode: modal frequency: 66.76 - maximum displacement: 151.2 mm.

    I don't know any thing about acceptable ranges for frequencies and their corresponding displacements in CNC machines.

    Here you can see the model and modal analysis results:

    Click image for larger version. 

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    Thanks for any suggestions

    Last edited by Jmashid; 10-05-2014 at 02:48 PM.

  5. #4
    I analyzed the structure in ANSYS. Results are better and more hopeful but the question remains: What is the preferred (acceptable) range for frequencies and relevant deformation in CNC machines like the one that i am going to build? Any suggestions? Thanks.
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  6. #5
    Have you seen evidence that a laser will cut through that thickness of material. I would imagine the power needed to slice through that much fabric would charr the edges and set the material on fire. I don't know what your budget is but if you really need a laser to do this you are not talking about hobby prices think 10's of thousands. I think a knife or recipricating saw blade is what is commonly used for thick stacks. How detailed are the cutting patterns you what to cut?
    CNC routing and prototyping services


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