Difference between revisions of "FreeCAD/C3/Introduction-to-Part-Design-Workbench/English-timed"
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Latest revision as of 13:27, 23 December 2024
Introduction to Part Design Workbench-English
| Time | Narration |
| 0:00 | Welcome to this Spoken Tutorial on Introduction to Part Design Workbench. |
| 0:06 | In this tutorial, we will learn to, |
| 0:10 | Draw basic shapes. |
| 0:11 | Use basic constrains. |
| 0:14 | Draw the Flange Coupling component in 3D. |
| 0:17 | To record this tutorial, I am using, |
| 0:20 | Windows 11 OS and |
| 0:22 | FreeCAD version 0.21.2 |
| 0:26 | To follow this tutorial, |
| 0:28 | Learners must be familiar with the FreeCAD interface. |
| 0:33 | For the prerequisite tutorials, please visit this site. |
| 0:38 | Let us now learn about Part design workbench. |
| 0:41 | This workbench provides tools for creating 3 dimensional solid objects. |
| 0:47 | Using this workbench it is possible to design precise 3D mechanical parts. |
| 0:53 | The Part design is intrinsically related to the Sketcher workbench. |
| 0:59 | The Sketcher workbench is used to create 2 dimensional geometries for use in Part design. |
| 01:05 | Let us open FreeCAD. |
| 01:09 | I will open a new file. |
| 01:11 | I have selected the Part Design workbench. |
| 01:15 | In the Tasks menu, under Start Part click on Create body. |
| 01:22 | A new Body needs to be created to draw a sketch. |
| 01:25 | Now under Start Body, click on Create sketch. |
| 01:30 | This creates a sketch view where you can draw the components. |
| 01:34 | On the panel we can see three planes in 3 mutually perpendicular directions. |
| 01:41 | In the Combo View under Select feature three planes are shown. |
| 01:47 | Select XY-plane in the Combo View. |
| 01:50 | This denotes the top view. |
| 01:53 | Click the OK button to select the plane. |
| 01:56 | Observe that new tools are shown on the toolbar. |
| 02:00 | Now let us draw a vertical line from the x-axis. |
| 02:05 | Select the Create line tool from the tool bar. |
| 02:08 | Place the cursor on the x-axis line. |
| 02:12 | You can see that the x-axis line changes to yellow. |
| 02:17 | You can see that a Constrain point onto object symbol appears near the cursor. |
| 02:22 | It denotes that the point is fixed to the line. |
| 02:27 | Now click on the line to start drawing it. |
| 02:30 | Drag the mouse vertically upwards to draw a vertical line. |
| 02:36 | You can see a Vertical constrain symbol appearing near the cursor. |
| 02:40 | It represents the line drawn vertically. |
| 02:43 | Left click to complete the drawing of the line. |
| 02:46 | Now let us draw a horizontal line along the x-axis. |
| 02:52 | Make sure that the Create line tool is selected. |
| 02:55 | You can check that by seeing the symbol near the cursor. |
| 02:59 | Place the cursor on the line. |
| 03:01 | You can see the Constraint Point onto object symbol near the cursor. |
| 03:06 | Click and drag the cursor horizontally to draw a horizontal line. |
| 03:11 | Now you can see two symbols appearing near the cursor. |
| 03:16 | Constrain point onto object symbol and Constrain horizontal symbol. |
| 03:21 | We don’t want two Constraint point onto objects. |
| 03:25 | This means that the line is fixed at two points to the same object. |
| 03:30 | Upon clicking, you can see that the entire drawing has turned to red. |
| 03:35 | To clear that, click on any one of the constraints. |
| 03:39 | Press the Delete key on your keyboard to delete the constrain. |
| 03:44 | Now you can see that the drawing came back to normal. |
| 03:47 | Let us avoid the appearance of the Constrain Point Onto Object symbol twice. |
| 03:52 | To do this, let’s draw a line below the x-axis. |
| 03:57 | To deselect the tools, right-click on the panel. |
| 04:00 | Or press the Escape key to deselect the tools. |
| 04:05 | Now let us draw an arc. |
| 04:08 | Select the Create arc tool from the tool bar. |
| 04:11 | Place the cursor on the top end of the vertical line. |
| 04:15 | You can see that a X-Shaped symbol appears near the cursor. |
| 04:20 | It is the Constrain coincidence. |
| 04:23 | It denotes that the cursor is at the top of the end point. |
| 04:28 | Now left click and drag the cursor to left or right. |
| 04:33 | You can see a model circle that can be drawn. |
| 04:37 | Click to release the model circle. |
| 04:40 | Drag the cursor to start drawing the arc. |
| 04:44 | Left click again to finish the arc. |
| 04:47 | Now let us draw a circle. |
| 04:50 | Select the Create circle tool. |
| 04:53 | Place the cursor at the end of the horizontal line. |
| 04:57 | Check for the X-Symbol. |
| 05:00 | Left click and drag the cursor to draw the circle. |
| 05:04 | Once the definite size is visible, left click to finish the circle. |
| 05:10 | Observe that, we have drawn these shapes with no dimensions. |
| 05:15 | Let us assign some values to them. |
| 05:18 | Let us select the vertical line. |
| 05:21 | Select the Constrain vertical distance tool from the tool bar. |
| 05:26 | Insert length pop up appears. |
| 05:29 | In the Length field type 30 mm and click the OK button. |
| 05:36 | You can see that a dimension is applied to that line. |
| 05:39 | Now select the horizontal line and click the Constrain horizontal distance tool. |
| 05:46 | Insert length pop up appears. |
| 05:50 | In the Length field type 30 millimetre and click the OK button. |
| 05:55 | Now to set the radius of the arc, select the arc. |
| 06:00 | Select the arrow near the Constrain arc or circle tool. |
| 06:06 | In the drop down select Constrain radius. |
| 06:09 | Insert radius pop up appears. |
| 06:12 | In the Radius field type 10 mm and click OK. |
| 06:17 | Now let us give the dimensions to the circle. |
| 06:21 | To set the radius for the circle, select the circle. |
| 06:26 | Select Constrain radius. |
| 06:29 | Insert radius pop up appears. |
| 06:32 | In the Radius field type 20 mm and click OK. |
| 06:37 | In the Combo View click on the Close button to complete the sketch |
| 06:42 | Now let us use the tools to draw a Flange coupling. |
| 06:47 | Now I will open a new file. |
| 06:50 | We can select the Create body tool from the toolbar. |
| 06:54 | Then select Create sketch. |
| 06:58 | Select XY-plane and click OK. |
| 07:03 | Now let us draw two circles. |
| 07:07 | Select the Create circle tool and place the cursor on the x-axis. |
| 07:12 | You can see that line changes to yellow color. |
| 07:16 | You can see that Constrain point onto object symbol appears near the cursor. |
| 07:22 | Now click on the line to draw a circle. |
| 07:26 | Repeat the process on the other side of the x axis. |
| 07:30 | Now right click the mouse to deselect the tool. |
| 07:34 | Select the center of any one of the circles and the midpoint of the plane. |
| 07:40 | Once the points are selected they turn to green color. |
| 07:44 | Click Constrain Horizontal Distance tool. |
| 07:47 | In the Insert length dialog box, type the length as 100 millimetre and click OK. |
| 07:55 | Select the centers of both the circles and click Constrain Horizontal Distance tool. |
| 08:02 | Change the length to 200 mm. |
| 08:06 | Let us move the drawing to a convenient place to see it clearly. |
| 08:11 | Press and hold the middle mouse button to see the move cursor. |
| 08:16 | Move the mouse and place the drawing at a convenient location. |
| 08:21 | Now select the Create arc tool. |
| 08:25 | Place the cursor on the center of the circle. |
| 08:29 | You can see that midpoint changes to yellow color. |
| 08:33 | An X-shaped symbol appears near the cursor. |
| 08:37 | This denotes that the cursor is at the midpoint of the circle. |
| 08:42 | Now click on the midpoint and draw a semicircle from bottom to up. |
| 08:48 | Repeat the same process on the other side. |
| 08:52 | Let’s draw two more arcs above and below the plane from center of the plane. |
| 08:59 | Now, select the Line tool and connect all the arcs. |
| 09:05 | Make sure to click only when the X-symbol is visible. |
| 09:10 | Now select a line and the arc and select the Constraint Tangent tool. |
| 09:16 | This makes the connection between the arc and line smooth . |
| 09:20 | Repeat this process for the arcs and lines at four points to make them smoother. |
| 09:28 | Now select the top arc and click Constraint radius tool |
| 09:34 | Set the radius to 75 mm. |
| 09:38 | Let us change the radius for the bottom arc also. |
| 09:44 | Now select both the circles and click Constraint radius tool. |
| 09:50 | Change the radius to 10 mm. |
| 09:55 | Select the arcs around the circles and change the radius to 30 mm. |
| 10:02 | Click Close in the Combo view. |
| 10:04 | You will exit the sketch view |
| 10:06 | Now select the Top view from the Gizmo. |
| 10:11 | Select the Pad tool from the tool bar. |
| 10:15 | You can see that the sketch will turn into a 3D object. |
| 10:19 | In the Combo view change the length to 20 mm. |
| 10:24 | This will increase the thickness of the drawing making it 3 dimensional. |
| 10:28 | Then click the OK button. |
| 10:31 | Let us rotate the drawing. |
| 10:33 | Press and hold the middle mouse button. |
| 10:36 | Right click and move the mouse. |
| 10:39 | Or you can change the view using the gizmo. |
| 10:44 | Again click Create sketch. |
| 10:48 | Then click XY-plane. |
| 10:51 | Click the OK button. |
| 10:55 | Select the View section tool to clearly see all the points. |
| 10:59 | Now draw a circle from the center of the plane. |
| 11:05 | Set the radius to 50 mm. |
| 11:09 | Click the Close button. |
| 11:12 | Go to the Model tab in the Combo view. |
| 11:15 | Select the sketch if not already selected. |
| 11:19 | Now select the Pocket tool from the tool bar. |
| 11:23 | Pocket tool is used to create holes in already existing drawings. |
| 11:28 | In the Combo view, change the length to 20 mm. |
| 11:33 | Tick the Reversed check box. |
| 11:36 | Click the OK button. |
| 11:39 | Now change the view to front using the gizmo or from the tool bar. |
| 11:45 | The 3D component is ready. |
| 11:48 | Now let us Save the file with an appropriate name. |
| 11:54 | With this we come to the end of this tutorial. |
| 11:58 | Let us summarize. |
| 12:00 | In this tutorial, we have learnt to, |
| 12:03 | Draw basic shapes. |
| 12:05 | Use basic constrains. |
| 12:07 | Draw the Flange Coupling component in 3D. |
| 12:11 | For the assignment activity, please do the following: |
| 12:14 | Practice to draw different shapes. |
| 12:17 | Practice pad and pocket tool. |
| 12:21 | This video summarizes the spoken tutorial project. |
| 12:24 | Please download and watch it. |
| 12:27 | We conduct workshops using spoken tutorials and give certificates. |
| 12:32 | Please write to us. |
| 12:34 | Please post your timed queries in this forum. |
| 12:37 | Spoken tutorial project was established by the ministry of education government of India. |
| 12:44 | This tutorial is contributed by Dr. Sathiya Narayanan and K.Sakthivel. |
| 12:49 | Thank you for joining. |
