Blender

This is mostly for reference:

• My 1st attempt at Blender (1/21 - 14 hours): https://twitter.com/betamountain/status/955232060599390208
• My 2nd attempt at Blender (1/28 - 2 hours): https://twitter.com/betamountain/status/957378931677716480

Add Ons

• Moved to Blender Add Ons

Ref

• https://www.youtube.com/watch?v=H1od08qJn9Q - Beginners Blender 3D: Tutorial 10 - 3D Logo Ident Process: BMW Badge
• https://www.youtube.com/watch?v=plhyqG-vEXk - [HD] Displacement Modifier tutorial Blender 2.56
• https://blender.stackexchange.com/questions/34037/how-to-merge-vertices-in-blender
• https://blender.stackexchange.com/questions/734/how-to-smooth-shade-an-object-while-retaining-hard-edges
• https://www.youtube.com/watch?v=6gRUUeFteQg - how to apply textures in blender 2.7x (beginners)
• https://www.youtube.com/watch?v=tkbU1bGOzWM - How to Cut A Hole in an object

Basic Curves

• Add object (Cube)
• Add Bezier Curve
• Select object
  • Add Array modifier
    • Consider using Merge (otherwise there will be segments that appear with Bevel)
  • Add Curve modifier
    • Select the Bezier curve
• To add more segments: increase array modifier count
• To refine the curve, subdivide the bezier curve

Bevel A Curve

• Object Data Properties
  • Geometry
    • Bevel
  • Weld modifier can help clean up the geometry

Mirroring Objects

• Delete half of your model. You should now have a perfect other half with a planar “hole” where the other half was.
• Go into Object mode and press Alt+D.
  • This will make a linked duplicate: any changes to the mesh data of one object will be duplicated over the other. Don’t move the object after duplication.
• Ctrl+M -> X Local.
• When you’re using Subsurf the derived mesh will not “cross over” between the halves; a seam will be visible. So to join the halves, select both and Ctrl+J. * * * Then Remove Doubles in Edit mode.

Removing Non Manifold

• Edit Mode -> Select -> All by Trait -> Non Manifold -> DELETE VERTICES [1]

Snap Two Faces Together

• https://blender.stackexchange.com/questions/73177/snap-two-objects-face-to-face-in-object-mode

Splitting Objects

Down The Middle

• Good for cubes
• Select Object
• CTRL+R and move curse near the axis to be cut, a line should appear
• LMB and then RMB
• Change to wireframe view
• Press 1 for Vertex selection
• Shift+LMB select the rest of vertices on one half of the object
• Separate (P), then Selection (2)
• You have two objects! If you're mirroring, select the appropriate object to discard and delete it.

Knife

• Rotate the body so the cut follows an axis (make note of the angle)
• Edit Mode
• Knife (K), Cut Through (Z), Constrain Angle (C) <for straight cut>
• Make the cut line
• LMB to stop cut
• Enter to finalize
• Select -> Select Loop Inner Region
• Mesh -> Separate -> Selection
• Restore the angle
  • Without testing, I believe this would be CTRL+A -> Rotation (test this)

Older

• https://www.youtube.com/watch?v=U3J-oYFdyqQ
• https://www.youtube.com/watch?v=QfLdbzSZdw
• https://www.youtube.com/watch?v=-pCf3DjsEBg&list=PLD1lGauXeE2NNaNHIjTd3XHFIBMcIUBrO&index=14&t=0s <--- Learn Bisect
  • Duplicate the object
  • Obj 1: Bisect the upper (fill\clear inner)
  • Obj 2: Bisect the lower (fill\clear outer)
• https://daler.github.io/blender-for-3d-printing/printing/mesh-problems.html

Blender Guru

Probably the most useful series that I found was by Blender Guru. He's patient and walks through the items. Do the tutorial bits, they are handy. He has a handy PDF (you have to sign up to get it) for shortcuts.

• https://www.youtube.com/watch?v=JYj6e-72RDs

Community

• https://www.blender.org/community/
  • https://blenderartists.org/forum/