6 week training presentation

freeCADInstallation

freeCADpyhton scriptsDrawing sheet

freeCADopen source CAD

Diljot [email protected]

Dept. of Computer Science

October 16, 2011

Guru Nanak Dev Engineering College [email protected]

freeCADInstallation


Contents1 freeCAD2 Installation3 freeCAD4 pyhton scripts

line scriptcircle scriptcube scriptcylinder scriptfusion script using macrofusion scriptbottle script

5 Drawing sheetHow to show object in drawing sheetDrawing sheet of objectDrawing sheet of bottleDrawing sheet of tablepython script to change 3D object to 2D on Drawing


freeCADInstallation






freeCADInstallation






freeCADInstallation






freeCADInstallation






freeCADInstallation


Introduction

Introduction

FreeCAD is a general purpose Open Source 3D CADmodeler, aimed directly at mechanical engineering andproduct design but also fits in a wider range of uses aroundengineering, such as architecture or other engineeringspecialties. It is a feature-based parametric modeler with amodular software architecture which makes it easy to provideadditional functionality without modifying the core system.


freeCADInstallation


Figure: Freecad software


freeCADInstallation


Installation

Installation of freeCAD software

Download the package freeCAD software from the followinglink:https://sourceforge.net/projects/free-cad/


https://sourceforge.net/projects/free-cad/

freeCADInstallation


Features

1 FreeCAD is multi-platform. It runs and behaves exactlythe same way on Windows Linux and Mac OSXplatforms.

2 FreeCAD also runs as a command line application, withlow memory footprint. In command line mode, FreeCADruns without its interface, but with all its geometrytools. It can be, for example, used as server to producecontent for other applications.

3 FreeCAD can be imported as a Python module, insideother applications that can run python scripts, or in apython console.


freeCADInstallation


Features





freeCADInstallation


Features





freeCADInstallation


Features





freeCADInstallation


Features

4 Built-in scripting framework: FreeCAD features abuilt-in Python interpreter, and an API that coversalmost any part of the application, the interface, thegeometry and the representation of this geometry in the3D viewer. The interpreter can run single commands upto complex scripts, in fact entire modules can even beprogrammed completely in Python.

5 a modular MSI installer allows flexible installations onWindows systems. Packages for Ubuntu systems are alsomaintained.


freeCADInstallation


Features




freeCADInstallation


Features




freeCADInstallation


line scriptcircle scriptcube scriptcylinder scriptfusion script using macro

fusion scriptbottle script

Python script in freeCAD

line script

import Part,PartGui

doc=App.newDocument()

l=Part.Line()

l.StartPoint=(0.0,0.0,0.0)

l.EndPoint=(1.0,1.0,1.0)

doc.addObject("Part::Feature","Line").

Shape=l.toShape()

doc.recompute()


freeCADInstallation




Figure: image of line


freeCADInstallation





circle script

import Part,PartGui


c=Part.Circle()

c.Radius=10.0

f=doc.addObject("Part::Feature", "Circle").

Shape=c.toShape()

doc.recompute()


freeCADInstallation




Figure: image of circle


freeCADInstallation





cube script

import Part,PartGui


App.ActiveDocument.addObject("Part::Box",

"Box")

App.ActiveDocument.Box.Length=10.00

App.ActiveDocument.Box.Width=10.00

App.ActiveDocument.Box.Height=10.00

doc.recompute()


freeCADInstallation




Figure: image of cube


freeCADInstallation





cylinder script

import Part,PartGui


App.ActiveDocument.addObject("Part::Cylinder",

"Cylinder")

App.ActiveDocument.Cylinder.Radius=80.00

App.ActiveDocument.Cylinder.Height=100.00

App.ActiveDocument.Cylinder.Angle=360.00

doc.recompute()


freeCADInstallation




Figure: image of cylinder


freeCADInstallation





fusion script using macro

import Part,PartGui


# Create three boxes and a cylinder

App.ActiveDocument.addObject("Part::Box","Box")

App.ActiveDocument.Box.Length=100.00

App.ActiveDocument.Box.Width=100.00

App.ActiveDocument.Box.Height=100.00

App.ActiveDocument.addObject("Part::Box","Box1")

App.ActiveDocument.Box1.Length=90.00

App.ActiveDocument.Box1.Width=40.00

App.ActiveDocument.Box1.Height=100.00Guru Nanak Dev Engineering College [email protected]

freeCADInstallation






App.ActiveDocument.addObject("Part::Box","Box2")

App.ActiveDocument.Box2.Length=20.00

App.ActiveDocument.Box2.Width=85.00

App.ActiveDocument.Box2.Height=100.00

App.ActiveDocument.addObject("Part::Cylinder",

"Cylinder")

App.ActiveDocument.Cylinder.Radius=80.00

App.ActiveDocument.Cylinder.Height=100.00

App.ActiveDocument.Cylinder.Angle=360.00


freeCADInstallation






# Fuse two boxes and the cylinder

App.activeDocument().addObject("Part::Fuse",

"Fusion")

App.activeDocument().Fusion.Base = App.

activeDocument().Cylinder

App.activeDocument().Fusion.Tool = App.

activeDocument().Box1

App.activeDocument().addObject("Part::Fuse","Fusion1")

App.activeDocument().Fusion1.Base =

App.activeDocument().Box2

App.activeDocument().Fusion1.Tool =

App.activeDocument().FusionGuru Nanak Dev Engineering College [email protected]

freeCADInstallation






# Cut the fused shapes from the first box

App.activeDocument().addObject("Part::Cut","Shape")

App.activeDocument().Shape.Base =

App.activeDocument().Box

App.activeDocument().Shape.Tool =

App.activeDocument().Fusion1


freeCADInstallation






# Hide all the intermediate shapes

Gui.activeDocument().Box.Visibility=False

Gui.activeDocument().Box1.Visibility=False

Gui.activeDocument().Box2.Visibility=False

Gui.activeDocument().Cylinder.Visibility=False

Gui.activeDocument().Fusion.Visibility=False

Gui.activeDocument().Fusion1.Visibility=False

doc.recompute()


freeCADInstallation




Figure: image of line


freeCADInstallation





fusion script

import Part,PartGui


Part.show(Part.makeBox(100,100,100).cut(Part.

makeCylinder(80,100)).cut(Part.makeBox(90,40,100)).

cut(Part.makeBox(20,85,100)))

Shape = App.ActiveDocument.Shape.Shape

print "visible edges:", len(visibleG0.Edges)

doc.recompute()


freeCADInstallation




Figure: image of object


freeCADInstallation





bottle script

import Part

import MakeBottle

bottle = MakeBottle.makeBottle()

Part.show(bottle)


freeCADInstallation




Figure: image of bottle


freeCADInstallation


How to show object in drawing sheetDrawing sheet of objectDrawing sheet of bottleDrawing sheet of tablepython script to change 3D object to 2D on Drawing

How to show object in drawing sheet in freeCAD

Drawing sheet

1 Firsty, to show the drawing view open the script infreeCAD and run it.

2 Go to view > workbench > Drawing. This will open thedrawing sheet.

3 Now, select the object click on insert button to insertthe drawing view of object. This will insert the page ofdrawing sheet. Select the object and click on button andthis will insert the part object in the drawing view. Nowclick on view to insert the the object in drawing sheet.


freeCADInstallation




Drawing sheet





freeCADInstallation




Drawing sheet





freeCADInstallation




Drawing sheet





freeCADInstallation



drawing sheet in freeCAD

Drawing sheet

4 To change the scale, click on scale button in the comboview and change the size of the object according to yourrequirment.

5 To change the rotation, click on rotation button incombo view and change the coordinates of x,y,z incombo view.


freeCADInstallation




Drawing sheet




freeCADInstallation




Drawing sheet




freeCADInstallation



Figure: Drawing view of object


freeCADInstallation



Figure: Drawing view of bottle


freeCADInstallation



Figure: Drawing view of table


freeCADInstallation



Any Question?


freeCADInstallation



Thank You

Diljot Kaur95011


Technology

6 week training presentation