3D Modelling

Resources

https://printables.com/
https://thangs.com/
- Collects models from multiple websites.
https://www.cad-blocks.net/
- Contains images (svg, dxf) of common objects (e.g., a sink, bathtub, etc.).

“3D printing aligned” models
- Thickness, angle (to avoid supports; to increase strength), build plate size, filament efficiency?
  - CNC Kitchen - Does Angled 3D Printing Really Make Parts Stronger?
    - Interesting discussion in the comments: think about splitting the part into more pieces so that they can all be printed at their strongest and then combined (e.g., via screws).
      - LordHonkInc: “…screws, glue, or 3D-printed connectors can help you print multiple small parts in their optimal orientation and then connect them afterwards…”
    - Also in general designing the parts themselves to be stronger, e.g., instead of a flimsy 90 degree bracket, just make it thicker, or add additional material in key areas of the part.
  - Slant 3D - Design Unbreakable Pins with Perfect Tolerances
  - Slant 3D: more videos on design for 3D printing (warping, splitting, tolerances, etc.).
- https://en.wikipedia.org/wiki/Design_for_manufacturability
Sharing
- Include README with recommendations for filament to use and printing parameters.
- Share source CAD files + .stl files on GitHub, Printables.com, Thingiverse.
- Share the .stl in the desired print orientation (to avoid confusion).
  - You can import into PrusaSlicer, reorient, and then click Export/Save as stl.
Design / Tricks
- Using gravity to rewind the spool.
  - https://www.printables.com/model/961047-a5-rewindr-made-for-prusa-mmu3#powered-by-gravity

DIY Desk Setup & Home Office Tour - Matthew Encina
- Fusion 360
- CutList Optimizer
FreeCAD (see FreeCAD note)
Blender
TinkerCAD - AutoDesk web based, free, beginner
SketchUp, free and not free, intermediate
Fusion 360, industrial, expensive, cloud based app.
SolidWorks