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docs/Assignments/week_05_3dprinting_and_scanning/lecture_Notes.md

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+# Lecture notes
+
+Subtractive, Something that can't be made with the cnc, laser cutter or vinyl cutter
+
+Test overhangs
+Test everything of 3d printer
+
+## 3D printing 
+Being able to get inside the body and create complex designs.
+
+It can fail
+
+Create much finer surface finisher using other machines
+
+Can print tranclucant, very strong materials.
+PLA, plant based renewable polymer
+PETG oil based, stronger, good uv resistance
+
+Most filaments are hydroscopic. They degrade over time. Filaments needs to be stored dry.
+
+### Concerns 3D printer
+Ultrafine particles
+PLA least, ABS most
+
+### Design rules
+* Supports
+
+
+* Infill. Dense: slow to print but strong. Not dense: fast but weak
+* surface finish
+* prevent sharp corners. Otherwise you may get weak corners
+* Weak bed adhesion: Print doesn't stick and if it lets go during print you get spaghetti.
+* Warping
+
+### Post processing
+* Electroplating
+* Some kind of oil to make it look better
+
+Wire Arc additive manufacturing: Metal 3D printing
+
+### File format
+stl, 3mf. Often used 3d format
+
+.obj, Made my autodesk often used to described colors
+
+.dxf, terrible for 3d
+
+.gcode, widely supported. Ancient
+
+### Software
+Meshlab, Let's you look at meshes and fix them.
+
+Slicing, Converts the 3d model to Machine readible instructions. Cura, Bambu Studio, Prusa slicer.
+
+Printer interfaces, To check your printer remotely. OctoPrint, Printrun
+
+Printer Firmware, Klipper
+
+
+
+modelviewer.dev. To embed 3d designs into site.
+
+### 3D scanning
+CT 3D scanning (Super expansive)
+
+#### Scanners
+Light 
+Probe  
+Digitizer
+Photogrammetry (pictures)
+
+
+## Assignment
+Group:
+Test the design rules of your printer
+Individual
+
+Design and print something that is impossible to make subtractivly. Nested parts, overhangs
+
+3D scan
+
+
+## Thursday
+3D printer software.
+Ender, Prusa all run marlin
+Voron runs klipper
+
+### GCode
+Gcode is like assembly. You don't wanna write it by hand.
+Gcode get's used in anything that has x,y,z or rotating. Printers, cnc, lasercutters.
+
+G = for positioning the printer head
+M = tool and machines set up
+E = extrude
+; = comment
+
+G92 = set position
+
+FullControlGcode designer to generate custom Gcode easy
+
+Brick laying 3d printing is strong but patented
+
+INFI 2 conveyor belt printer
+
+PETG, bit more bendable
+ABS, Sturdy, heat resistand. Print it at a higher temparature and it's toxic.
+
+Non planer infill with bricks
+
+https://howtomechatronics.com/tutorials/g-code-explained-list-of-most-important-g-code-commands/
+
+[All Gcode Commands what they do](https://howtomechatronics.com/tutorials/g-code-explained-list-of-most-important-g-code-commands/)
+
+Most problems of the GCode are in the setup part of the GCode
+
+### 3D scanning
+Software: Creality scan
+Camera: CR scan ferret
+
+
+texture to geometry
+geometry works better on faces
+
+easy to make is a **chain**.
+
+## Recitation about AI
+### Embedded AI/ML
+
+### TinyML concepts and applications
+TinyML limited to low power devices
+
+#### core values
+Machines learning applications for mcu's
+ultra low power
+small devices KB-level memory
+local processing, real-time response
+
+advantages:
+* better privacy
+* Low latency
+* offline operation 
+
+#### Applications
+Machine vision 
+Sound and vibration sensing
+Motion and posture recongnision
+Envoirmental monitoring and control
+
+
+### Toolchain and platform introduction
+TensorFlow Lite
+PyTorch mobile
+EDGE IMPULSE
+STM32 cube AI
+SenseCraft AI
+
+
+SenseCraft
+* Zero code Model deployment
+* Online model training
+* Flexible inference output
+
+Can be connected to mqtt or other pins without coding
+
+### How to make almost anything almost without making anything
+
+vizom.ai
+https://lumalabs.ai