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for 3D Printing

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by

Vicky Somma

on 14 March 2015

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Transcript of for 3D Printing

3D Prints Using
Vicky Somma
vicky@tgaw.com
@TGAW
http://www.shapeways.com/shops/tgaw
Woven Heart Ornament
(in Full Color Sandstone)
How It Was Modeled - The Weave
Cylinder
Minus Smaller Cylinder
=
-
The Cut Cylinder Minus A Cube
=
Copy the Arch and Flip
A Whole Line of Stitches
Add in Some "Cubes" and Copy Many Lines To Make the Weave!
How It Was Modeled - Cutting the Heart
What to Google - "Boolean Modifier Difference"

A tool to subtract objects from one another in Blender is called the Boolean Modifier (Using the "Difference" Operation).
I put a Heart in my Weave and took the Intersection of it
What to Google - "Boolean Modifier Intersection"
A tool to get where two objects overlap is called the Boolean Modifier tool (Using the "Intersection" Operation). Think of it like the
Venn Diagram of Objects
.
How It Was Modeled - Ornament Components
Cube
Cube
Cylinder
Text
The rest of the Ornament Base is a series of standard objects
How It Was Modeled - Cameo
Using a picture, I created curves to outline the profile.
What to Google - "Bezier Curves"
Bezier Curves are a powerful, flexible way to create odd shapes and objects- 2D and 3D!
How It Was Modeled - Coloring!
I assigned colors to each object.
What to Google - "Materials"
One way to color objects is assigning material and giving each material a color.
Exporting for Printing
For color models, I export to x3d format
Schrodinger's Cat
(In Full Color Sandstone)
How It Was Modeled - Schrodinger's Cat
Fun Fact: Only 1/4th of the Cat was modeled (and he/she started as a cube!)
Mirrors were used to make sure the cat was the same on the front and back
Then the cat was made nice and smooth. : )
Recommended Tutorial: Bezier Curves
Modelling with Curves
by BlenderNerd
vimeo.com/31973698
How It Was Modeled - Schrodinger's Cat
I used my own doodles as reference images.
What to Google - "Empty X-Ray"
A special "Empty" Object can be set to an image. You can also set X-Ray mode and Transparency to see the image through your objects to reference.
What to Google - "Mesh Modeling"
Mesh modeling (aka Polygonal modeling) is the most common Blender technique at creating 3D objects.
Recommended Tutorial - Mesh Modeling
The
Modeling a Velociraptor
series by Jjannaway3D
www.youtube.com/watch?v=Dut5qb3KR74
What to Google - "Mirror Modifier"
The Mirror Modifier allows you to mirror your work. It doesn't have to be over the axises. You can even mirror over planes at the angles of your choosing.
What to Google - "Subdivision Surface"
The Subdivision Surface Modifier (Subsurf for short) takes all your faces and divides them up. End result-- rounded corners, smooth finishes.
How It Was Modeled - Coloring!
First I marked seams of places it made sense to "cut" the cat such as the legs.
Blender translated that to a map for me to decorate, which I chose to do in Gimp (like Photoshop)
What to Google - "Texture Mapping"
Texture mapping gives you a very flexible means of coloring/decorating your objects.
Recommended Tutorial - Texture Mapping
Blender 2.7 UV Mapping
by Darrin Lile
www.youtube.com/watch?v=f2-FfB9kRmE
Exporting for Printing - Multicolored Models
For multi-color models, I export to x3d format
Zip the x3d file AND any texture images for uploading.
&
This presentation available online at:
http://prezi.com/ymqlgwjxt9sc/
Customized Standing Cancer Ribbons
(Strong & Flexible Plastics)
How It Was Modeled - Cancer Ribbon
I made a curve of how I wanted the ribbon
How It Was Modeled - Cancer Ribbon
With curves, you can define a "Bevel Object" - a cross section. My cross section was made of two rectangles (so the ribbon would be hollow)
The distance between the inside and outside is my "wall thickness"
How It Was Modeled - Cancer Ribbon
The curve was converted to a Mesh
How It Was Modeled - Cancer Ribbon
Added some faces at the "feet" of our ribbon.
How It Was Modeled - Cancer Ribbon
Text was added and then bent along the exact curve as the ribbon.
How It Was Modeled - Cancer Ribbon
To flatten the feet, a cube was subtracted from the ribbon
-
=
How It Was Modeled - Cancer Ribbon
The text was converted to a mesh and then raised up (aka Extrude)
Exporting for Printing
For single color models, I export to .STL
What to Google - "Curve Distort"
The curve distort tool bends objects along a curve or circle.
Library of Congress Ornament
(in Gold Plated Steel)

Public Domain Photo by Carol M. Highsmith
How It Was Modeled - LOC Ornament
The ornament started as two Spheres-- a large one and a small one to make a hollow ornament
How It Was Modeled - LOC Ornament
Only 1/16th was modeled.

I subtracted Cubes from my sphere to make one little wedge for modeling.
How It Was Modeled - LOC Ornament
The windows, doors and archways all stemmed from cylinders and were subtracted from the ornament
How It Was Modeled - LOC Ornament
Once carved, mirrors were used to make a full sphere again.
How It Was Modeled - LOC Ornament
The flooring started as circles
"Cubes" were subtracted to make the aisles
More Details on Instructables!
How It Was Modeled - LOC Ornament
www.instructables.com/id/Library-of-Congress-3D-Printed-Christmas-Ornament/
What to Google - "Bevel Modifier" and "Bevel Weight"
The Bevel Modifier allows you to round edges. Using a Bevel Weight you can control which edges will bevel and how much.
School Bus Wine Stopper
(in Gold Plated Steel)
How It Was Modeled -
School Bus Wine Stopper
The School Bus is ALL standard objects!
The bus body, just two cubes!
The wheels, cylinders!
Even all the engravings are combinations of cubes!
The door-- a cube minus two smaller cubes.
How It Was Modeled -
School Bus Wine Stopper
To give the bus a rounded look, it was beveled.
How It Was Modeled -
School Bus Wine Stopper
To attach the bus to the stud of the wine stopper, a cylinder was subtraced from another cylinder.
How It was Modeled -
School Bus Wine Stopper
All the features of the bus were "engraved"
How It Was Modeled -
School Bus Wine Stopper
More details on my blog!

tgaw.wordpress.com/2014/10/14/open-source-making-a-school-bus-wine-stopper-with-blender-shapeways-and-niles-bottle-stoppers/
Creative Commons Image by Jiuguang Wang
Breastfeeding Pendant
(In Various Steel Finishes)
How It Was Modeled -
Breastfeeding Pendant
A modified version (The Mom kinda needed a neck) was traced with curves.
How It Was Modeled -
Breastfeeding Pendant
The curves were converted to a Mesh and filled with Faces.
How It Was Modeled -
Breastfeeding Pendant
The faces were extruded up to give the symbol height.
How It Was Modeled -
Breastfeeding Pendant
A Torus was added, sized, and rotated to complete the pendant
How It Was Modeled -
Breastfeeding Pendant
The Pendant is based off the Public Domain "International Symbol of Breastfeeding" by Matt Daigle
How It Was Modeled -
Breastfeeding Pendant
More Details on My Blog!

tgaw.wordpress.com/2014/03/06/open-source-creating-a-breastfeeding-origami-owl-charm-with-blender-and-shapeways/
Recommended Tutorial - Blender Basics
Blender Basics
by Jonathan Williamson
cgcookie.com/blender/cgc-courses/blender-basics-introduction-for-beginners/
Recommended Tutorial - Modeling a Pumpkin
Modeling a Pumpkin
by Jonathan Williamson
cgcookie.com/blender/cgc-courses/creating-a-pumpkin/
Glowing Cthulhu Pumpkin
In Strong & Flexible Plastic
How It Was Modeled - Cthulhu Pumpkin
Riding the coattails of BlenderCookie's Jonathan Williamson, I modeled a pumpkin.
How It Was Modeled - Cthulhu Pumpkin
I hollowed the pumpkin out (using a copy and scaled down version of the original)
How It Was Modeled - Cthulhu Pumpkin
Cthulhu started some hand drawn doodles that I traced with curves
How It Was Modeled - Cthulhu Pumpkin
Cthulhu was converted to a mesh and extruded to make a stencil. I then bent him around a circle to mimic the shape of the pumpkin.
How It Was Modeled - Cthulhu Pumpkin
The stencil was adjusted to follow the ridges of the pumpkin (so the pumpkin walls would be a consistent thickness for glowing)
Cthulhu
Smaller Version
of Pumpkin
Ridged
Stencil
-
=
How It Was Modeled - Cthulhu Pumpkin
Cthulhu was subtracted from the pumpkin.
How It Was Modeled - Cthulhu Pumpkin
A Modified Cylinder
Served as My Lid Cutter
The "Intersection" of the Pumpkin and My Cutter is the Lid.
Meanwhile the Pumpkin MINUS the Cutter Opens Up the Pumpkin
Moving Dial-O-Lantern
In Strong & Flexible Plastic
Moving Dial-O-Lantern
Dial-O-Lantern is made three separate parts that print already assembled.
How It Was Modeled - Dial-O-Lantern
For modeling details, please visit my Instructables article.
www.instructables.com/id/3D-Printed-Configurable-Jack-O-Lantern-With-Moving/
Full transcript