Paper models 26 images
tree::>Paper models
In This Album:
   
Image List
Thumbnail Page 1
Thumbnail Page 2
    These are in works in progress, or pictures that I haven't gotten around to completing the write-up for.
 
Image List

   
Three cylinders, in progress  Sm    Med    Lg  
Date : 24/11/2002 23:11:58
Click on one of the size names above to enlarge this image
 
Plaited truncated icosahedron  Sm    Med    Lg  
Date : 09/12/2002 03:52:06
Click on one of the size names above to enlarge this image
 
Plaited truncated icosahedron  Sm    Med    Lg  
Description : This view shows how I miscalculated and made the strips too short
Date : 09/12/2002 03:52:23
Click on one of the size names above to enlarge this image
 
Plaited truncated icosahedron  Sm    Med    Lg  
Description : ...with the strips pushed together showing the hole
Date : 09/12/2002 03:53:13
Click on one of the size names above to enlarge this image
 
Plaited strips over 32 randomly chosen faces  Sm    Med    Lg  
Description : I'm unhappy with the fact that some of the edges are too short for the paper to hold together after repeated flexings. This view shows one such place on the left.

Credit to H. B. Meyer for the plaiting idea which got me started. I'll probably get the matlab code behind this model up on the web, once I've come up with something I like better.

Date : 02/02/2003 23:18:18
Click on one of the size names above to enlarge this image
 
Plaited strips over 32 randomly chosen faces  Sm    Med    Lg  
Description : The extra wiggle room at the corners was probably too much; also, it might have worked better with thinner paper.
Date : 02/02/2003 23:18:34
Click on one of the size names above to enlarge this image
 
Plaited strips over a triangulation  Sm    Med    Lg  
Description : The generating data for this was the same as that of the previous model, but a Delaunay triangulation used to find the faces. Two complete strips are colored (before cutting the paper) with an acrylic ink, while the white strips form two disjoint loops.
Date : 05/02/2003 23:01:57
Click on one of the size names above to enlarge this image
 
Plaited strips over a triangulation  Sm    Med    Lg  
Description : This view shows the messier back side; it was difficult to tuck all the ends in, because the thickness of the paper was not taken into account.
Date : 05/02/2003 23:02:46
Click on one of the size names above to enlarge this image
 
Larger plaited thing (in progress)  Sm    Med    Lg  
Description : I wanted to document the way these go from looking like a complete mess to being fully assembled.
Date : 13/02/2003 15:24:35
Click on one of the size names above to enlarge this image
 
Larger plaited thing  Sm    Med    Lg  
Description : Here's the finished model. Cutting slightly at the corners did indeed leave enough slack that it's uniformly fairly tidy.
Date : 13/02/2003 16:12:59
Click on one of the size names above to enlarge this image
 
1466  Sm    Med    Lg  
Description : This was hard to fit together since I didn't really leave enough information on the printed copy. There's a dot of the appropriate color each time a strip passes under another.
Date : 27/02/2003 02:52:59
Click on one of the size names above to enlarge this image
 
1471  Sm    Med    Lg  
Description : It turns out that it's a mirror image of the other model made from the same data, although it's hard to see which parts to match up.
Date : 27/02/2003 02:56:51
Click on one of the size names above to enlarge this image
 
1472  Sm    Med    Lg  
Date : 27/02/2003 02:57:07
Click on one of the size names above to enlarge this image
 
Open plaiting with shading  Sm    Med    Lg  
Description : The grey/black shades uniformly from one end to the other.
Date : 12/03/2003 01:10:40
Click on one of the size names above to enlarge this image
 
Open plaiting with shading  Sm    Med    Lg  
Description : This view shows the darker side.
Date : 12/03/2003 01:10:59
Click on one of the size names above to enlarge this image
 
Sphere with Turnip-Top  Sm    Med    Lg  
Description : Still life with sphere series.
Date : 12/03/2003 01:13:31
Click on one of the size names above to enlarge this image
 
Sphere with Eyedropper  Sm    Med    Lg  
Description : Still life with sphere series.
Date : 12/03/2003 01:14:32
Click on one of the size names above to enlarge this image
 
Sphere with Corkscrew  Sm    Med    Lg  
Description : Still life with sphere series.
Date : 12/03/2003 01:18:46
Click on one of the size names above to enlarge this image
 
Sphere with Mini-Marshmallows  Sm    Med    Lg  
Description : Still life with sphere series.
Date : 12/03/2003 01:21:32
Click on one of the size names above to enlarge this image
 
Smaller, with color shading  Sm    Med    Lg  
Description : This has the same geometry as the previous one, but its single strip goes is shaded with a simple color ramp.
Date : 20/03/2003 02:30:04
Click on one of the size names above to enlarge this image
 
1864  Sm    Med    Lg  
Description : Here the information about which strip should cross where is copied from a model with the same main colors and geometry, but which has crossing points color-coded. There's still dots to distinguish which edge goes over or under, but they're more subtle.

Again, there's only one strip.

The photo is cropped and the colors brightened slightly in gimp.

Click on one of the size names above to enlarge this image
 
2051  Sm    Med    Lg  
Description : I found this at my mother's house in Toronto; I would have made it around 1995 or 1996.>p
Date : 26/05/2003 12:05:43
Event : May 2003 trip to Toronto
Click on one of the size names above to enlarge this image
 
2054  Sm    Med    Lg  
Description : I found this at my mother's house in Toronto; I would have made it around 1995 or 1996.>p
Date : 26/05/2003 12:06:33
Event : May 2003 trip to Toronto
Click on one of the size names above to enlarge this image
 
2057  Sm    Med    Lg  
Description : I found this at my mother's house in Toronto; I would have made it around 1995 or 1996.>p
Date : 26/05/2003 12:08:14
Event : May 2003 trip to Toronto
Click on one of the size names above to enlarge this image
 
Unfolded  Sm    Med    Lg  
Description : I wrote matlab code to draw the net that you'd get if you unfolded a given triangulation. In this example, it's generated at random with voronoin and convhull, and the grey lines indicate non-folds.
Click on one of the size names above to enlarge this image
 
m016  Sm    Med    Lg  
Description : Sketch showing how the strips should look for plaited polyhedra of various thicknesses. It's nice to work with something that flattens conveniently; no need for 3-d to show all the relevant features.

I've been considering how to allow enough slack not to need to crease at the edges, so I have something which is more loosely held together, and more woven looking. This seems like a job for postscript splines to smooth out the curves between, but I still need to come up with where to put the guide points.

If I use this method, I can make the public side the printed side; then there's the question of how to indicate what goes where in a way that's hidden or pretty (which is why I needed to put in two strips and show how they cross). These points all correspond to the edges of the underlying polyhedron, of which there are more than either vertices or faces, and which makes it a bit incovenient to number them individually.

Date : 2003:02:10
Click on one of the size names above to enlarge this image
 

 

Album generated by BINS 1.1.22 on Tue Jul 29 23:10:14 2003.