3D-scanning & Polygon modeling
Make correct and 3D-printable files
Mix and blend
all kind of digital 3D-formats and then
Analyze and Correct
it into a professional and flawless 3D-printable file
- 3 useful 3D-tools to install
- Win 10 setting to adjust
- Some Basic Knowledge
- Make People
- Easy tools for polygon modelling, mixing and repair
- School pages for 3D-printing
- Try to Mix some different 3D-models!
09.00 to 12.00 Lab/Online Lecture and Q&A:s
10.15 to 10.45 WozzUp, Coffee break, fika
15:15 to 15:45 Coffee break, fika
13.00 to 16.00 Lab/Online Lecture and Q&A:s
3 useful 3D-tools to install
Make 3D-model from photos ReCap
Download and install from here:
How to make a 3D-model from Photos
Win 10 setting to adjust
Show File name extensions in Win 10
Open a Windows file folder
View -> File name extensions. mark it, Enable visibility
Some Basic knowledge
The difference between different CAD-formats:
When are these used?
Very important GENERAL file formats:
STL, OBJ, FBX and (mostly polygons)
Iges, Step (mostly NURBS)
Scan 3D objects and people
Structured light scanning
Borrowing the schools IPad-scanner
Some review sites
Easy tools for polygon modeling, mixing and repair
Mesh Reducing and Scan Cleanup video
MeshMixer Repair Demo (Long 1,5 hour!)
Maker's Muse: Add smoothness to your meshes using remeshing! 3D 101 video
Meshmixer Tips & Tricks
Check size. Analyze > Unit/Dimensions adjust direct or use Edit > Transform
If blue lines, try Edit > Close Cracks
Use the "X-ray shader" to see if there is something inside yhat should not be there
Edit > Seperate shells to verify that no unwanted pieces exist
Analyze > Inspector to make it "solid" (one volume) Friendly to your original mesh
Edit > Make Solid A quick shortcut to make things solid but could give unwanted result
Ctrl-click two parts and use boolean UNION to merge two volumes (check with x-ray if went okey)
Make interesting Voronoi pattern! Very easy
Thicken very thin parts and "impossibly" parts. Edit > Make Solid Offset
Netfabb 7.4 Free
Use the old versions like 5.2 or 7.4 they are very old but powerful
Todays version is free for student but, only 30 days..?, and enormous in size
Download this free, awesome and very tiny (23mb) tool at our Google Share instead here
Always check in Netfabb!
Tips & Tricks
And possibly go for an Automatic Repair
ight-click and save as STL
Meshmixer: Adjust polygon size at intersection before Boolean Union! Very stretched polygons might cause problems. Strive for similar polygon size on both parts at intersection.
Use Select > Edit > Remesh > Linear SubDivision
Or use a brush. Sculpt > Brushes > Refine
OK result in Netfabb Analyze
School pages for 3D-printing
3D-printers, Quality, thickness and strength
Some different types of 3D-printers
Digital Light Process (DLP) similar to SLA
Multi Jet Fusion (MJF)
Direct Metal Laser Sintering (DMLS)
Electron Beam Melting (EBM)
Where can I 3D-print?
How to 3D-print info!
Try to Mix some different 3D-models!
Combine NURBS and polygon models for 3D-printing
Add your own NURBS object use Rhino or Alias (NURBS surfaces)
Download and add a Solid model, Surface models or polygon model is ok. Clean it and make it leakage free. One volume (shell)
You can also Scan an object or person (polygons, mesh).Real life scanned data has to be used.
Use Laser scanner, Laser scanning
IPad-scanner or "IPad-scanning", structured light
Photogrammetry. Comparasion of photogrammetry softwares
UNION (not combine) for a 3D-printable file :)
Correct size. Able to fit into the machine. (Usually smaller than 300mm)
Use Boolean action UNION. Secure a similar polygon size at intersection before union!
Check with the "X-ray shader" if there is any internal volumes. It should only be ONE volume!
Check for holes and gaps. Meshmixer > Analyze > Inspector
Enough strength! Walls has to be from 0.3 to 3 mm depending on machine and material
The Normals has to be correct
If the model looks rough then you might like to add more polygons. If you have to many polygons then reduce the number of polygons.
Export a STL-file (choose binary because it will be smaller)
Check the file size! If above 20mb then Meshmixer > Select. Ctrl-a. Select > Edit > Reduce. Max Deviation, Shape preserving
More that can be done :)
Make moving parts. Remember to have an "air-gap" between them!
Try out the Tinkerplay connectors. Meshmixer > MeshMix > Tinkerplay connectors
Prepare the file for different materials on one model. Use the Complex tool.
"Borrow" a foot, head or hand for your 3D-model by using MakeHuman. Make a 3D-model and cut off the piece you need :)