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A
andersb13517347
Participant
April 21, 2020
Question

Distortion printing

  • April 21, 2020
  • 4 replies
  • 2283 views

Hello!

 

I'm banging my head against the wall, I can not figure out how to fix my problem.

I got a small business/hobby printing and vacuumforming the print around objects.

There is software for my problem, but it is way to expensive. (https://www.youtube.com/watch?v=ulT0LqQ9KHE)

 

I have printed numerous patterns to check how much my images distorts, and its from 0 - 300%.

That meaning someplaces, a 1x1cm square will be 1x3cm when formed.

 

Anybody got a bright idea how to fix this problem ?

I'l add two images as examples.

 --> 

 

This topic has been closed for replies.

4 replies

H
howardfink
Participant
December 14, 2020

I don't have any solutions at this time, but have started to work on the problem using methods described in this paper:

https://igl.ethz.ch/projects/thermoforming/computational-thermoforming-2016.pdf  I spoke to one of the authors at NYU and wrote some code in Mathematica.  The idea is to print the grid, thermoform, scan the formed object from above, and compute the anti-distortion.  That is then used to distort the original graphic.  Even using commercial software, it is an iterative process, and usually takes a few tries before the distortion is exact.  

    R
    Robert22879007s396
    Participant
    January 28, 2022

    Hi

     

    Did you succeed to find a solution ?

    I have a similar problem on a different object and I need to find a method to handle it.

    I noticed you seemed to use blender. 

     

    My idea was to 3d scan the object with the photos projected on it.

    Then I would like to make a new simple object based on the 3d scan. This new object will be made of quads, the same quads of the printed grid.

    I was thinking to use blender to do it. But my first concern is to know if it possible to have a uv parameterisation that matches the printed quads.

    My second concern is about finding a tool/software that will help me to apply some transformations on the image I want to modify before the print and some tips how to do it.

     

     

     

     

    H
    howardfink
    Participant
    January 28, 2022
    I wrote a program in Mathematica that was able to do what I wanted. Never tried it. Need overhead scanner, laser printer, laser transfer paper, heat press, and thermoformer. Lab access was restricted during pandemic; will try this spring to get it working.
      JJMack
      Community Expert
      JJMackCommunity Expert
      Community Expert
      April 28, 2020

      Photoshop most likely is not the application to use for you products you seem to want some 3D application.  You may want to look at Adobe Dimension to see if it can built or import the 3D models you seem to need. Adobe Dimension 

      JJMack
        A
        andersb13517347Author
        Participant
        April 28, 2020

        I've found someone with the same problem as me, he also printed a grid. But the thread ends without an happy ending. Any creative solutions here? 🙂 

        c.pfaffenbichler
        Community Expert
        c.pfaffenbichlerCommunity Expert
        Community Expert
        April 22, 2020

        I suppose one could use a Displacement Map to counteract the effect but I suspect that would work in the opposite direction of what you want to achieve, as it might be used to preview the distortion but not effectively enable to work in the distorted state. 

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