FreeCAD/C2/Inscribe-a-Polygon/English
Title of script: Inscribe a polygon
Author: Rani Parvathy
Keywords: Freecad,snap tool, annotation tool, inscribe a polygon, equation of a pentagon, format object, color, change line width, annotation, format text, measure distance, video tutorial.
Visual Cue | Narration |
Slide Number 1
Title Slide |
Welcome to the tutorial on Inscribe a Polygon. |
Slide Number 2
Learning Objectives
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In this tutorial, we will learn to,
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Slide Number 3
Learning Objectives |
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Slide Number 4
System and Software Requirement
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To record this tutorial, I am using
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Slide Number 5
Pre-requisites
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To follow this tutorial,
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Open FreeCAD and go to Draft workbench. | Open FreeCAD and start a new file.
Select Draft workbench. Make sure that Orthographic and top view are selected. |
Cursor on the polygon tool. | Let’s add a pentagon to this drawing.
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Slide Number 6
Inscribing pentagon inside a circle
R=0.85 A A is length of the side of the pentagon R is the radius of the circle |
Equation for inscribing a pentagon of a circle is R is equal to 0.85 times A.
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Click on the polygon tool in the Draft creation tools menu. | Click on the polygon tool as seen. |
Cursor on Sides option in Combo view, Model tab.
Change the number of Sides to 5. |
Notice the Sides option in Combo view, Model tab.
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Move the cursor to the drawing canvas. | Move the cursor to the drawing canvas and notice the + crosshair. |
Left click hold and drag. | Left click hold and drag to form the desired polygon.
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Annotation on the Radius panel.
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Notice the Radius form on the left combo View panel.
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At ~ r=20, left click on the canvas. | I will keep the radius around 20mm and click on the canvas.
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Cursor on the polygon.
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To select an object click on it and notice the green outline. |
Highlight polygon while editing. | The new object is also added in the combo view as polygon. |
Click on polygon to select it.
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Make sure the polygon is selected in the combo view.
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Highlight in video editing.
Place the cursor on the edge of the panel.
Highlight in video editing.
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Place the cursor on the edge of the panel as seen.
Click and drag to resize the panel.
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For Bounding box, choose true.
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For the first option of the bounding box, choose true.
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Cursor near the bounding box. | This allows us to encompass the area of selected objects in the canvas. |
Toggle the bounding box off from the view menu. | We can also toggle this on or off from the view toolbar on the top menu. |
Scroll down to object style.
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Scroll down to object style.
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Choose Flat lines. | I will choose Flat lines now.
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Click on the form for line color. | Scroll down and click on the form for line color.
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Choose red and click on Ok. | I will choose red and click on OK. |
Cursor on the selected | When the object is selected, the outline is in green color.
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Change Line width to 8.
Highlight change in video editing. |
Scroll down and change the line width to 8. |
Scroll down.
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Scroll down to the Shape color.
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Choose orange color and click on Ok.
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If the object has multiple faces, we can color the various faces differently.
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Cursor on transparency. | Notice that we can also change the transparency of the object here. |
Cursor on circle tool in Draft tools. | Now, pause the video, and draw a circle partially overlapping the pentagon. |
Cursor on flat lines and show filled pentagon. | Use flat lines for display mode and fill it with a color of your choice. |
Cursor on transparency. | Then change the transparency level and notice the changes. |
Left click on the canvas and notice the changes. | The color changes will be visible only when the object is not highlighted. |
Click on one of the edges of the pentagon. | Next, let’s measure the distance of the side of the pentagon.
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Click on the Dimension tool on the Draft Annotation tools. | Next, click on the Dimension tool in the Draft Annotation tools. |
Move the line a bit away from the selected line. | A line parallel to the selected line appears on the canvas.
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Left click and notice the measured distance. | Left click to notice the measured line and annotation.
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We can format the annotation globally or individually. | |
Select the Dimension label in the comboview, model tab. | In the combo View, model tab, Select the dimension label. |
Open the line color selection dialog box in the graphics section. | Scroll down to the graphics section and line color.
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Choose red and click on ok. | Choose red and click on OK. |
Scroll to text section. | Then, scroll to the text section in the panel below. |
Change font size to 5 mm. | Go to the font size section and change it to 5 mm.
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Go to Edit, Preferences. | To change the default font setting, go to Edit, Preferences. |
Select Draft tab on the left and then test and dimensions on the top. | Choose the Draft tab on the left.
Then choose the Text and dimensions on top. |
Cursor on the text properties. | Set the desired parameters here for global setting.
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Click on Cancel. | For now I will click on Cancel as I do not want to change them. |
click on the measure distance tool on the View toolbar. | Let us measure the distance between two user chosen points.
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Cursor on the report view window. | The report view window prompts the user to pick the first point. |
Click on a point on the canvas. | Click on your desired first point.
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Click on another vertex. | Then I will click on another vertex.
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Cursor on combo view, model tab and show the added measurement. | Delete the measurements using the combo view, model tab.
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Cursor on View toolbar fit all and fit selection tooltip. | You may want to readjust the zoom level at any point.
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Select an object and right click to open the context menu. | Many of these are also available as context menus.
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Users must practice to get familiarity with the various tools. | |
Click on File, hover on save. | Save your work if desired. |
Use File, Exit to close FreeCAD. | Use File, Exit to close FreeCAD. |
Slide Number 7
Summary |
Now let's summarize.
In this tutorial, we,
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Slide Number 8
Assignment |
For assignment activity, please do the following.
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Slide Number 9
Assignment |
Practice to draw and format the properties of objects.
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Slide Number 10
Spoken Tutorial Project
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This video summarises the Spoken Tutorial Project .
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Slide Number 11
Spoken Tutorial workshops |
The Spoken Tutorial Project team,
* gives certificates.
Please write to us. |
Slide Number 12
Forum for specific questions: |
Please post your timed queries in this forum. |
Slide Number 13
Acknowledgement |
The Spoken Tutorial Project was established by the Ministry of Education, Government of India. |
Thank you for joining. |