Papermasks

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You will need to install Blender and the Papermodel Addon for the workshop.
For the tutorial Gimp and Inkscape are used for editing bitmaps and vector-graphics, but you can also use Photoshop and Illustrator.

Download and install Blender and download the paper-model plugin (direct link).

Download and install Gimp.

Prepare your images.

Download and install Inkscape.

Once you have blender installed, you can install the papermodel plugin by going to File → User preferences → Add-ons → Install from File and choose io_export_paper_model.py that you downloaded from the link above.
Once it appears in the plugins, you still need to activate it by clicking the little checkmark on the right of it.

For a Basic Introduction to Blender, have a look at this page.

Then you can either use one of the following files as template or design your own model.

Luciana
Neil

The template already has a UV-map. If you start your own model, you will have to unwrap it.

With your cursor in the 3D-View hit N for opening the “numeric” side-panel.
Scroll down to “Background Images.
Check the mark and add the image we previously prepared to the front and right view.
Use the controlls for aligning it with the 3D-Model:

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Adjust the mesh to the general proportions of your photos:
Enter “Edit-Mode” Tab
Use the selection Tools (B, C or Shift+right-click) and the Grab-Key G for moving the vertices to the right locations.
Try hitting O before using grab and experiment rotating the mouse-wheel.

Have another look at the Blender Basics if you have difficulties.

Once you have your mesh aligned, find the “object-data”-tab in the “Properties-Window”.

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Add another UV-map (with the + Button) and name it “Front”.

Orient the model to the front view (View → Front, or Numpad 1)
Make sure you are in “Edit-Mode” Tab
Split your 3D-View in half vertically, by right-clicking on the upper border of the window and selecting “split window”.
Change the right window to “UV/Image Editor” by clicking on the selector in the bottom-right corner.
You should be seeing something like this:

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Make sure that your 3D-View says “Front Ortho” in the upper right corner:

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If it doesn’t, use 1 and 5 until it does.

Select everything A
. In the “object-data”-tab (“Properties-Window”) make sure that your new UV-map “Front” is selected. With your mouse in the 3D-View hit U and select “Project from View”.
The result should look like this:

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In the “UV/Image editor” open your picture and align it with your UV-map.
(A select everything, G Grab, S Scale).
You might have to repeat the “Project from View” if your pictur is not square.

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Repeat the same steps for the side and back view:
Create a UV-map “right”,
Put the 3D-View in the “right-view” 3
With your mouse in the 3D-View hit U and select “Project from View”.
Open the picture and align your UV-map to it.

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Repeat the same for the “Back”

Now we should have four UV-maps: Front, Right, Back and UV-map

With all the maps made, we can switch to “Texture Paint mode

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If it isn’t already, open the right side-panel by pressing T

Your model will appear in pink.

Add a new Material in the Properties-Window by clicking on “New”:

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Add a “Paint-Slot” and choose “Diffuse Color”. Keep the default settings.

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Click on the sphere and choose the clone-brush:

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Check “Clone from paint slot”

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In the UV/Image-Editor click on “New” for creating a new image:

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Name it “unwrap” and keep the default settings.
Select the second tab called “Slot”.

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Switch “Material” to “Image” and select the “unwrap” as Canvas image.
Back in the “Tools”-Tab, choose your image as “Source Clone Image” and “front” as the UV-map.

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Now you can start to clone brush your front view onto the model.

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Once you are finished, switch the “Source Clone UV-map” to “right” and start painting on the right side.
If you turn on “X” in “Symmetry”, it will mirror to the left side.

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Same procedure for the “back”.
Once you finished painting all arround, you should be seeing something like this:

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Now save your texture:

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And add the texture to your material:

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Now we can start using the Papermodel-plugin. It is located in the “Tool-Shelf” of the 3D-Window (T)

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Click on “Unfold” and then on “Export Paper model”.

These are the settings in the export dialog:

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Scale 1:100
Page Size: A3
Textures: from Materials

Choose a filename ending in “svg”
and open the resulting image in Inkscape:

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Now you only need to add the cutmarks for the Roland GX-24
You should also keep the margins according to this template.

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The three little circles are for the Vinyl-Cutter for recognizing the orientation of the print.

A few tricks for extracting the necessary lines:
Select everything and ungroup it a few times until you have single objects (Shift+Ctrl+U)
Open the layer dialog and create layers for “cut”, “fold”, “marks”, and “images”.(Shift+Ctrl+L)
Select one of the bitmaps, hit Ctrl+F
Check “Search in”: Properties
“Object type”: Images
Click “Find”. It should select all the bitmaps. Move them to their layer by right-clicking –> Move to layer

Select one of the cutlines
Open the XML-Editor (Shift+Ctrl+X
Click on style and copy the attribute: stroke-width:1.06299222
Do a Ctrl+F
and search for the style attribute.
Do the same for the fold-lines.
Once you have everything on it’s own layer, you can easily generate the files for printing and cutting.

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