Blender
#######

Youtube-Tutorial: https://www.youtube.com/watch?v=ZI49VIcISaw&list=PL6Fiih6ItYsX3qdwhEyd77zy82bM-I8t1


Make Model Manifold
===================

Under "Clean Up" → Make Manifold

* https://www.youtube.com/watch?v=-vockvxeo2Q


Setup
=====

:kbd:`Edit` → :kbd:`Preferences`

:kbd:`System` → :kbd:`Undo Steps` (Aim as high as possible, without slowing down your system).

:kbd:`Scene Propperties` (Right site bottom selectors) change Units to Millimieter (0.001 and set Length to Millimeters)
On viewport overlays (top right) change scale to 0.001


Add-Ons
*******

:kbd:`Edit` → :kbd:`Preferences` → :kbd:`Add-ons`

* Bool Tool
* LoopTools
* 3D-Print Toolbox
* PDT (Precision Drawing Tools)


Moving (looking around)
=======================

* Pivot: Middle Mouse
* Pan: Shift + Middle Mouse Button
* Go (back to) the scene: Select the item you want to go to and click Numpad Periode key (:kbd:`.`); Or use :kbd:`Shift` + :kbd:`C`
* :kbd:`Edit` → :kbd:`Preferences` → :kbd:`Navigation` → :kbd:`Fly & Walk` (select what you want). Activate with :kbd:`Shift` + :kbd:`´` (Accent)


Create a 2D Shape
=================

* :kbd:`X`: Delete (select what you want to delete in the menu that pops up)
* :kbd:`Shift` + :kbd:`A`: Create a Vert
* :kbd:`E`: Extrude from selected Vertex

   * :kbd:`X` / :kbd:`Y` / :kbd:`Z` for Direction
   * Type number of millimeters to move and press Enter
* :kbd:`F`: Fill Space between selected Vertexes
* :kbd:`Ctrl`: Snap Vertex to Grid


Move Vertices
=============

* Select Move (left hand side) or press :kbd:`G`
* Press the dimension you want to move (:kbd:`X` / :kbd:`Y` / :kbd:`Z`)
* Enter a number (with leading minus) how much you want the Vertice to move

https://docs.blender.org/manual/en/latest/modeling/meshes/editing/mesh/transform/basic.html

Rotate (:kbd:`R`)
Scale (:kbd:`S`)


Copy Vertices
=============

Select what you want to copy and press :kbd:`Shift` + :kbd:`D`


Make hole in Object
===================

* Select vertices, right click → seperate (:kbd:`P`) → choose how you want to seperate (probably by selection)
* Select the Object you want to subtract followed by the Object you want to be "cut into" (while holding down shift)
* :kbd:`Ctrl` + :kbd:`Shift` + :kbd:`B` (select which bool operation to use)
   * Or press :kbd:`Ctrl` + :kbd:`Shift` + :kbd:`Numpad -` to choose difference


Round Corners of Plane
======================

Select vertex or vertices and press :kbd:`Ctrl` + :kbd:`Shift` + :kbd:`B`. With the Mouse-Wheel you can in/decrease the number of vertices to build the roundness.


Fix 3D for Printing
===================

Bad Contiguos Edges
*******************

In Edit mode, I pressed A to select all, then :kbd:`Mesh` → :kbd:`Normals` → :kbd:`Recalculate Inside`. This fixed it for me as my problematic edges were inside a cylinder recess in my object.

Zero Faces
***********
:kbd:`Mesh` → :kbd:`Cleanup` → :kbd:`Degenerate Dissolve`

Make mesh only use triangles
****************************

Select all Vertices → :kbd:`Ctrl` + :kbd:`T`


Usefull Informations
====================

- View Exact Coordinates of Vertex: Item (Right hand side) → Transform
- Show Length of edges: Overlays (right top) → Edge Length
- Cleanup Vertices: Right klick → merge verticates → by distance

- Round edges: PDT → PDT Design Tools
- Move to exact position: PDT → PDT Design Operations

- Bezl (Round Corners): :kbd:`Ctrl` + :kbd:`B`

- Hide everything unselected: Toggle :kbd:`Shift` + :kbd:`H` (:kbd:`Alt` + :kbd:`H`; for reverse)