A collection of FreeCAD macro's

To make use of these macros (on linux/mac) you can symlink these files to your default macro directory with the extension changed to .FCMacro

• LinesToGCode: converts the select edges (in selection order) to a gcode program. Useful to convert a sketch on a face to a tool-path.
• SketchLinesToGCode: an older version of LinesToGCode that works on a sketch (in edit mode)

Some macros for working with 2.5 Dimentions

• flatten3D: Un-wraps a 3D model to produce a 2D representation that can be cut out and folded to produce the 3D object. Note: all faces need to be on the same shape for FreeCAD to report the selection order correctly. To use it you need to: .. 1. Select the reference face .. 2. Select the bend edge (i.e. usually one that is incommon between reference and next face .. 3. Select a face to un-fold .. 4. Run macro .. 5. Repeat step 1 to 4 for all faces you want to unfold. .. * Note: you can repeat step 2 and 3 more than once to do an unfold with reference to an unfolded face. e.g. the underside of a cube.

A number of non-parametric macros (i.e. break the FreeCAD-way) but help enable productivity (and save sanity) when modeling complex parts.

• MakeFace: Makes a face (triangle) from 3 Vertexes. You can select any number of sub-objects as-long-as the total unique vertexes is 3. e.g. you could select 2 edges (as long as they have one vertex in common OR 1 vertex and 1 edge OR 3 vertexes etc.
• MakeSolid: Makes a solid from a bunch selected of faces.
• MergeFaces: Makes a single face from multiple (must be planer). e.g. if you have two adjacent triangle faces that make up a square you can use this to macro to create a new object with a single square face.
• PromoteSelected: Promotes the selected sub-objects to first class objects. It functions on all sub- object types i.e. Face, Edge, Wire, etc. e.g. if you select a face it will make a new shape with a single face (a clone of the one you selected). If you select 2 faces it will create two shapes with 1 face.
• SimplifyFace: This Macro will take the currently selected (1) face and simplify by removing all Cavities (or inlets) in the outside wire. NOTE: sometimes FreeCAD will not select the correct wire when asking for the outside wire so you may need to edit the selection code near the end of this macro.

e.g. with ............ produces
X----X   X----X     X-------------X
|    |   |    |  >  |             |
|    X---X    |  >  |             |
X-------------X     X-------------X

Some other macros.

• ImportWing: imports a airfoil profile (.dat file) into a face. A work-around for a bug in my pivy/coil installation.