Saturday, September 2, 2017

Body modeling in patplume





Little further advance;)

Modeling the body in patplume with the method used to make the hip joint. That means to model the piece from the file 3d, a file of face cut and profile for the proportions.

On the pictures, you see the detached parts, then the body mounted with the head in patplume and the body mounted with the head in 3d printing.

The head in 3d printing is smaller than the modeling head, I do not know what size is right. It seems that my modeling is slightly larger than the reference files.

Maybe i'll have to reprint the head a little bigger to see.

This is what I have for the moment, I will try to move forward a bit.

Sunday, August 27, 2017

3D head printing bjd



Still a little further advance;) In theory the quality of the photos is better now :)
Here, what we see on the left is the head of robotica printed at 50% of its size at sculpteo and on the right the modeling in patplume done on the printed structure in layer by layer of paper (as seen previously)
The two have clearly nothing in common but it's interesting, it's still two heads, better than I've been able to produce so far.
For 3d printing, there are several services, I took sculpteo because it is in France (for shipping costs) and we can upload the piece to test without buying. The quality is really good and accurate. For this head it cost 12,60 (postage of 5 euros included) against less than 1 euros of material for the head paper and patplume.
As the head is reduced by 50%, I had to activate the automatic filling of fragile areas (if not print there) which makes eyes puffy, filled the hollows, it is rather funny;). To modify it I think I will remold it and take it out in plastiroc or modeling clay.
So for now I have two heads and a hip joint in latex maché paper.
I think that I will model all the pieces in patplume (technique of modeling used higher without layer by layer of paper) to see what it gives. Then make them into papier maché, paper texture print.
This will result in a bjd made of paper maché with texture printed on sheet. Only the head will probably print in 3d and I think the hands in layer by layer of paper or in impression 3d has to see.
Paper Layered printing is interesting to me because it gives me a starting base to model on precise parts like the face. And if you can not afford a 3d impression for precise parts, this is a good alternative and it's fun to do :)
For larger, less precise parts, I use the 3d model and the layered view to model, it is faster and it is enough for me :)
This is what I have for the moment, I will try to move forward a bit.

Saturday, September 3, 2016

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.

Thursday, February 25, 2016

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

#!/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 :)

Friday, November 27, 2015

3D cardstock printing without printer

Can we print a 3D object with no 2D or 3D printer at all ?  With no third party online service ? 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
  3. Cardstock like cereals box about 400 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 : 0.4 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

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 :)

Tuesday, May 12, 2015

liani sintel version arduino arm moves z axis test 001



So here is a little test of the left arm animated by a micro servo with a arduino.

You can get the code here

Beware to change the serial port for your system or it will bug ;)

Now it is time to do x and y axis ;)

For that i had to buy a breadboard, wires, and 4 micro servo on amazon at une brillante planète (you know them ?) for 12 euros with free delivery. I will see what it worth don't really know but it is very cheap.

Friday, May 1, 2015

liani sintel version automata walk cycle test 001



So long time no post... because i was working on the abilities to draw, sculpt, model, design, i was trying to design what liani will look like...

but nothing happens...

 no design, no sketch, no model was good enough... i tried hard but i was blocked.

However i was watching Sintel on youtube and bam, that is it. Sintel character is creative common i can use it and pass the design block.

So here is a liani sintel version automata walk cycle test 001 hand activated :)

The head is a pocket digital photo frame with a creative common attribution sintel face (to improve with an arduino mini screen)

The body is for now in paper (to be printed with a better texture next time)

The automata system is in lego for now (to improve by a laser cutable material or 3d printable)

The goal is to make a little animatronic doll of 15 cm (5.90 inches) that moves good :)




The work now is to make a hand moves in x y z with 3 micro servo, (or flexinole) and a arduino...

So what do you think about it ? Thank you for your feedback :)