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IndustryArena Forum > Hobby Projects > Hobby Discussion > Ripples and Waves on the CNC Machine
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  1. #1
    Join Date
    Jun 2008
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    21

    Ripples and Waves on the CNC Machine

    Hi guys I want to machine something like this

    Attachment 272662

    I've worked out how to make uniform circular ripples with the aid of Photoshop and custom gradients, but I like the none uniform more fluid effect. Any know and willing to explain how I can create my own designs like the above?

    Many Thanks

  2. #2
    Join Date
    Jun 2008
    Posts
    21
    Quote Originally Posted by DavidJHolmes View Post
    Hi guys I want to machine something like this

    Attachment 272662

    I've worked out how to make uniform circular ripples with the aid of Photoshop and custom gradients, but I like the none uniform more fluid effect. Any know and willing to explain how I can create my own designs like the above?

    Many Thanks
    No one? :-(

  3. #3
    Join Date
    Jul 2003
    Posts
    196

    Re: Ripples and Waves on the CNC Machine

    http://jgroshoppages.blogspot.com/

  4. #4
    Join Date
    Aug 2006
    Posts
    670

    Re: Ripples and Waves on the CNC Machine

    depending on the tools you are using and the material you are cutting, you can get the same effect by just using a "z-level" roughing option on a smooth 3d surface. Even the cheapest CAM software will have this option. Using a ball end mill or flat end mill will obviously give you different effects.

  5. #5
    Join Date
    Jun 2008
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    21

    Re: Ripples and Waves on the CNC Machine

    Thanks guys. I'll have a try. Have been using grasshopper and rhino on a free trial to create a few different effects. My experience is zero and the learning curve is high. So far I have an egg box effect!

  6. #6
    Join Date
    Jan 2007
    Posts
    1795

    Re: Ripples and Waves on the CNC Machine

    in my opinion, for you would be simplest to modeling it..
    the two panel are identical, but mirrored..

    there are programs you can simulate fluideffects.. unfortunately they require some math background..

    probably wolfram math would make it simple.. but again, without schools we are locked out of that option..

    Artisan Plugin (SDS2).....Cave ? SketchUcation Community Forums

    WebGL Demo ? Fluid Simulation With 512k Particles

    https://developer.nvidia.com/cuda-code-samples

    also i believe smoke also create very similar turbulences..

    good luck with your project..

  7. #7
    Join Date
    Jan 2007
    Posts
    1795

    Re: Ripples and Waves on the CNC Machine

    i made some samples to show you..
    first i straightened the picture with corel
    made a ridge, and a hill..
    i imported the obj model

    in detail.. i thing laying out the edgeflow would be better in a program can import bitmap and create vectors as dxf..

    next you can make the facets betwen the layout

    subdivide and done..

    but true, a program what makes it with variables and with one click, a lot simpler..
    however that need math background..
    Attached Thumbnails Attached Thumbnails new-4.JPG   new-5.JPG  

  8. #8
    Join Date
    Jun 2008
    Posts
    21

    Re: Ripples and Waves on the CNC Machine

    Thanks for the help. I wanted to avoid manually sculpting or modelling as the geeky side of me likes the maths.

    Attachment 275378

    I've managed to cobble something in Rhino and Grasshopper and using "z*sin(rad(x*50))*sin(rad(y*50))" without quotes it gives the above image.

    I'll have a look at those links you've posted. Just going to try the code in the previous link

  9. #9
    Join Date
    Jan 2007
    Posts
    1795

    Re: Ripples and Waves on the CNC Machine

    david


    thats cool.. i read about grasshopper..
    recently a work involved tesselations.. man.. thats a different world.. folks who knows it they makes just on finger tip a java applet..
    others can make with grasshopper, or cinderella.. or geometers sketchpad..

    while im not pride for, but i take it, im ""undereducated""
    and not capable to understand this higher math..

    what jerry made a little program, that shows the reality..
    he made it as a passion,,, others might learn this one program on hard way.. but the next project will causing again difficulties and again makes it looking for a program that create something...

    check this out..
    please note the mouse movement makes like a trail..

    JS1k 2010 - 131 -

    in this another you can place a bitmap, and this bitmap will be distorted.. like ripples-waves going..
    probably you save any state with prntscrn
    Attached Files Attached Files

  10. #10
    Join Date
    Jun 2008
    Posts
    21

    Re: Ripples and Waves on the CNC Machine

    Unfortunately I don't understand much but I like to try and get a grasp on it to see how it works.

    That attachment is pretty cool!

  11. #11
    Join Date
    Feb 2009
    Posts
    6028

    Re: Ripples and Waves on the CNC Machine

    AutoCAD has a sculpting program that I believe will post a stl. Not sure if the free version will though.

  12. #12
    Join Date
    Jun 2008
    Posts
    21

    Re: Ripples and Waves on the CNC Machine

    I have AutoCad. Took the advantage to get it whilst I was a student. Indefinite license for a small fee!

    So far with the wave surface program I'm only really getting a mixture of droplet ripples. Nothing flowing if you get my meaning.

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