Hello from Iran

[Jmashid]

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.

[jcb121]

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have a look at something like this on aliexpress

[Jmashid]

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:



Thanks for any suggestions

Jamshid

[Jmashid]

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.

[gavztheouch]

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?