3D paper mache modeling with scotch tape, patplume and liquid latex

Here, what you see is the 3d left ball hip to 50 percent of robotica. It is not printed layer by layer like for the head and hands.

Instead we used the following files as a plan for modeling a patplume model as accurate as possible :
- the 3d file in blender : https://drive.google.com/file/d/0B_g2mleRq27pYWc2V1M5U2FqdTQ/view?usp=sharing
- the svg file cut up and down, drag and drop in svgviewer :  https://drive.google.com/file/d/0B_g2mleRq27pS0cyNFZ4SGJIN28/view?usp=sharing
- the svg file turned cut right to left, drag and drop in svgviewer : https://drive.google.com/file/d/0B_g2mleRq27pbjUzOFl4UU0zMUE/view?usp=sharing

(patplume version, scotch mold, color test on paper with transparent glue)

Then rub it with food plastic and scotch tape to make a mold.
Fill the food plastic and scotch tape mold with paper mache. Wait until it dries.
Then mix liquid latex and paint to put on the dry paper mache.
Or you can replace latex with paint, glue, and food plastic on the glue to protect and make shine the whole thing :)

If you have holes glue a scotch roll in it.

3D paper (80g = 100 microns) printing with 2D printer

Can we print a 3D object with a 2D printer ? Cheap ? And time consuming like if you build it from scratch ?

Maybe we can try at least :) Here is a solution for you ;)

We will need :

1. An internet connection with a computer or tablet
2. Slic3r software program and imagemagick
3. Paper sheets (80g = 100 microns thick)
4. A paper pencil
5. A paper sheet
6. Glue
7. A lot of time :)

That is all folks ! Let's print something :)

Step 1 : Download your 3D model

Modeling a 3D model is possible but not always really easy. Here we are going to use an online 3D object head

Step 2 : Reduce and slice your 3D model

Here you will need the software program Slic3r, to reduce and slice your 3D model.

To reduce :  

• Press Add select head_with_eyes_rectificada.stl 

• Then Object - Scale - Uniformly and 50 percent

• File save head_with_eyes_rectificada_50percent.stl
  
  

To slice :

• In Printer Settings  - Nozzle diameter : 0.5 - Layer Height : 0.1 mm

• Then File Slice To svg

• Choose head_with_eyes_rectificada_50percent.stl
• Then head_with_eyes_rectificada_50percent.svg

Step 3 : Copy and cut each slide

• Goto svgviewer
• Drag and drop head_with_eyes_rectificada_50percent.svg 
• Copy each slice with this script capture.sh :

#!/bin/bash

number=0
echo "record screenshot png"
echo "BEWARE : DELETE ALL PNG CREATED BEFORE !!!!"
read -n 1 -s
rm -f *.png
echo "select firefox"
sleep 5
while true ;
do
    import -window root "screen.png"
    xdotool key Right
    new=$(printf "screen%04d.png" "$number")
    mv -- "screen.png" "$new"
    echo "$new"
    number=$(expr "$number" + 1)
done

• Renum each slice with this script renum.sh :

#!/bin/bash

number=0
for i in *.png; do
    new=$(printf "renum%04d.png" "$number")
    mv -- "$i" "$new"
    echo "$new"
    number=$(expr "$number" + 1)
done

• Crop numerically each slice with this script crop.sh :

#!/bin/bash

number=1
for i in *.png; do
    new=$(printf "crop%04d.png" "$number")
    convert -crop 68x72+109+479 +repage "$i" "$new"
    echo "$new"
    number=$(expr "$number" + 1)
done

•  Number each slice with this script num.sh :

 #!/bin/bash
number=1
for i in *.png; do
    new=$(printf "num%04d.png" "$number")
    convert "$i"  -gravity southeast -stroke '#000C' -strokewidth 2 -annotate 0 "$number" -stroke none -fill white -annotate 0 "$number" "$new"
    echo "$new"
    number=$(expr "$number" + 1)
done

• montage contour white each slice

montage num*.png -tile 10x14 -geometry +1+1 montage.png

• Assemble in gimp into a printable png a4 file for 2D printing

• Cut each slide following the pencil lines

Step 4 : Glue each slide from up to down

• Here is the low tech 3D printer : a box of cereales ;)
• On the left corner is two slides one with six previous slides and the last one
• So then you add an other slide at the bottom
• You adjust on the corner the previous slide and the new one
• Glue the both together
• Then take the upper slide off
• And again with the next slide
• Go Go Go

 Step 5 : Admire your artwork :) or not ;)

 

 Step 6 : Add paper mache or patplume for details

This is the end my friend :) You can practice more with that better explanation than mine :) Thank you for your time :)