3d Printing & Scanning Course Notes

3dPrintingScanningWorkshop.md

The Geekery: 3D Printing and Scanning

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Course Pre-requisites

Be able to use Zoom.

Syllabus

Session 1 - 3D Printing Intro

• Additive Manufacture
  • Traditional Manufacturing removes unwanted material. Requires assembly of parts made by multiple tools/processes
  • Additive Manufacturing defined. 7 types, material extrusion and vat polymerisation are the most popular and most likely what people are referring to when they say 3D printing.
• Popular 3D printers
  • FDM description
  • SLA description
  • Manufacturers of printers (see links below)
• Benefits/Limitations
• 3D Printing Process
• Demonstration
  • Show timelapse - point out features
  • TinkerCAD
  • PrusaSlicr
  • Octoprint to Printer (use printcam stream)
  • Go back to slicer settings after starting print and watch first layer or two
• Print optimisation
  • 3D Printing Fails
  • Achilles Heels of 3D Printing
  • Design rules
• Materials
  • Various examples
• Practical Uses of 3D Printing
  • Thingiverse
  • Rapid prototyping
  • Fun: Animals leading in to
  • Medical
  • Art
  • Buildings
  • Fun: Logos etc. personalisation, '3D photos'
  • Fun: Minecraft
  • Space: A bit like a minecraft Crafting Table
  • Impossible objects
  • Fun: Play with your food

Session 2 - 3D Modelling Intro

• 3D Modelling workflow
  • 3D Model vs Mesh
• 3D Model Libraries
  • https://thangs.com/
  • https://www.myminifactory.com/
  • https://cults3d.com/
  • https://pinshape.com/
• Types of 3D Modelling
  • Entry Level
  • Programmatic
  • 2D Projections
  • Mesh
  • Sculpting
  • Scanning
• Popular 3D Modelling Tools
  • TinkerCAD
  • BlocksCAD
  • OpenSCAD
  • SketchUp
  • Fusion 360
  • Blender
  • Meshmixer
• Design Guidelines
• Practical
  • Captive ball in TinkerCAD

Session 3 - 3D Scanning Intro

• 3D Workflow
• Why Scan?
• How 3D Scanning Works
• Post-Processing for 3D Modelling
• Break after 1 hour
• Scanning with Kinect and Skanect (Available for Mac and Windows)
• Scanning with camera and Zephyr by 3dflow (Windows)
• Other options (Matterport, Scanning services)
• Demo of Kinect & Skanect
• Prepare, Record, Reconstruct, Process, Share.
• Demo of camera and Zephyr by 3dflow
• Drag on photos, run sparse point cloud.
• Workflow->Advanced->Generate dense point cloud, mesh extraction, mesh generate and export enhanced mesh (including OBJ format)

Links

Links to further reading

1. Evolution of manufacturing: https://www.youtube.com/watch?v=fzBRYsiyxjI
2. Plastics explained: https://community.preciousplastic.com/academy/plastic/basics
3. Printing pizza and sweets: https://www.youtube.com/watch?v=yoKjoj2XL3c
4. Printing houses: https://www.youtube.com/watch?v=lZh8E6zZdzk
5. First family moves in to 3D printed house: https://www.bbc.co.uk/news/technology-44709534
6. Exotic filaments: https://www.treatstock.co.uk/guide/article/123-a-quick-guide-to-exotic-fdm-printing-materials
7. Design tips: https://www.3dprintacademy.co.uk/designing-for-fdm-production-parts/
8. 3D Hubs Guides: https://www.3dhubs.com/guides/3d-printing/
9. STL files explained: https://all3dp.com/what-is-stl-file-format-extension-3d-printing/
10. Blender Show Reel https://www.youtube.com/watch?v=gWw23EYM9VM
11. Blender - for 3D Printing https://www.sculpteo.com/en/tutorial/prepare-your-model-3d-printing-blender
12. Common problems with 3D printing https://i.materialise.com/blog/en/3d-printing-with-sketchup/
13. Fusion 360 Toplogy Optimisation https://toms3d.org/2019/08/06/making-strong-shelves-with-topology-optimization/
14. https://www.3dhubs.com/guides/3d-printing/
15. 3D Scanning using ColMap and MeshMixer: https://youtu.be/ye-C-OOFsX8

3D Print Services

1. https://www.luma-id.co.uk/ Margate based experts
2. https://www.surfacescan.co.uk Kent based scanning, reverse engineering and printing
3. https://www.shapeways.com/ prints in many materials including metal (US/Netherlands)
4. https://www.3dpeople.uk/
5. https://3dprintdirect.co.uk/

3D Printer manufacturers

1. https://www.prusa3d.com/
2. https://snapmaker.com/
3. https://www.creality3dshop.eu/
4. https://www.makerbot.com/
5. https://ultimaker.com/

3D Scanning Tools

1. Skanect and Xbox Kinect: https://www.instructables.com/How-to-3D-scan-with-Skanect/
2. Zephyr: https://www.3dflow.net/3df-zephyr-free/ Photo scanning
3. AliceVision: https://alicevision.org/#meshroom (Windows and Linux)
4. Meshlab
5. VisualSFM: http://ccwu.me/vsfm/ Free. Windows, Linux, Mac.
6. ColMap: https://colmap.github.io/install.html
7. Roundup: https://all3dp.com/1/best-photogrammetry-software/

Presentation link

This is slightly hidden down here at the bottom because I use it as a reward for completing the feedback form. Link to 3D Printing, Modelling and Scanning workshop presentation.