How to Create a Fountain Pen

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Stephen Foster
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1 How to Create a Fountain Pen Lesson 4 How to Create a Fountain Pen This lesson will guide you in building a fountain pen. You will use the following tools: NURBS curves. Extrusion. Mirror. Trim. Blend Curves. Lathe. Edge Extract. Fill Path. Birail. Learning solidthinking 1

2 Lesson 4 Building the pen nib 1) If you are already working with solidthinking, choose the New command from the File main menu and save the scene you were working on. Otherwise, you must first run solidthinking. 2) Choose the default layout option from the Layouts panel (choose View 4 Layouts). 3) Open the Grid Setup panel by either selecting Edit 4 Grid Setup. 2 Learning solidthinking

3 How to Create a Fountain Pen 4) Choose the Grid#1 tab and set X, Y, and Z to 0.1. Let s now begin by modeling the pen-nib. 5) Click the Ellipse: focuses, point. As focuses coordinates use points Focus1 = 0.6, 0, 0 and Focus2 = -0.6, 0, 0; as Point1 use coordinates 1.2, 0, 0.2. Learning solidthinking 3

4 Lesson 4 6) Select now the ellipse and insert Start angle = 10 and End angle = 170 in the Modeling Tool panel. 4 Learning solidthinking

How to Create a Fountain Pen 7) Click the Extrude icon (with the Front view active) and extrude the ellipse with a value of 6.9. Your object should look like the one below.

5 How to Create a Fountain Pen 7) Click the Extrude icon (with the Front view active) and extrude the ellipse with a value of 6.9. Your object should look like the one below. Now you have to follow the red outline as in the next figure and draw a profile in the area which will then be tour Trim curve. 8) Click the Top View and click activate the NURBS curve icon to start inserting the points. The Local axes origin is always at the default value of 0,0,0. Insert the following points: #1(0, 0, 0), #2(1.2, -2.75, 0), #3(1.35, -2.85, 0), #4(1.2, -3, 0), #5(0.81, -6.9, 0). Learning solidthinking 5

6 Lesson 4 9) Click the Mirror icon, select the NURBS curve and press Spacebar to close the selection. Define now the X axis as your Reflection Axis. 6 Learning solidthinking

How to Create a Fountain Pen 10) Click the Trim surface function and select the right curve followed by the extruded ellipse. You will so perform a trimming onto the surface.

7 How to Create a Fountain Pen 10) Click the Trim surface function and select the right curve followed by the extruded ellipse. You will so perform a trimming onto the surface. Repeat the procedure for the left curve. This should be your resulting surface. To obtain the inner portion of the object and thus create your nib, switch on the Trim exterior radio button in the Loop exterior section of the Modeling Tool section. Learning solidthinking 7

8 Lesson 4 Here is your pen-nib. Let s now move on to the body of the pen. 11) Open the Right View to full size (simply double-click the title bar) and draw the following curves using the NURBS curve tool. Curve1: #1(0, -4.1, 1); #2(0, -4.1, 1.3); #3(0, -4.1, 1.4); #4(0, -4.2, 1.5); #5(0, -4.3, 1.4); #6(0, -4.5, 1.5); #7(0, -4.7, 1.5). 8 Learning solidthinking

9 How to Create a Fountain Pen Curve 2: #1(0, -4.7, 1.5); #2(0, -8.2, 1.5). Curve 3: #1(0, -8.2, 1.5); #2(0, -8.2, 1.6); #3(0, -8.3, 1.6); #4(0, -8.4, 1.7); #5(0, -8.7, 1.8); #6(0, -10, 1.8). Learning solidthinking 9

10 Lesson 4 Curve 4: #1(0, -10, 1.7); #2(0, -11.6, 2.3); #3(0, -14.6, 2.4); #4(0, -16.4, 2). Curve 5: #1(0, -16.4, 2); #2(0, -16.4, 2.1); #3(0, -16.5, 2.1); #4(0, -19.1, 1.8); #5(0, -21.7, 1.8); #6(0, -35.2, 1.8). 10 Learning solidthinking

How to Create a Fountain Pen Creating the revolved surfaces and using Round To obtain the body of the fountain pen you can use the Lathe modeling tool, which creates revolved surfaces by rotating

11 How to Create a Fountain Pen Creating the revolved surfaces and using Round To obtain the body of the fountain pen you can use the Lathe modeling tool, which creates revolved surfaces by rotating around any user-defined axis. 1) Click the Lathe icon or choose the Tools 4 Surfaces 4 Lathe command. 2) Click Curve 1 and press Enter to confirm the following values in the console: Rotation = 360; Revolution Axis = 0, 0, 0; Revolution axis direction = Y. Do the same with Curves 2 and 3. 3) Click Curve 4 and press Enter to confirm the following values in the console: Rotation = 360; Revolution Axis = 0, 0, 0; Revolution axis direction = Y. Do the same with the Curves 5. Learning solidthinking 11

12 Lesson 4 Now you need to seal the back portion of the pen.. 4) Click the Edge extract icon and click the hollow surface. The surface will turn green and you will have to select the edge to be extracted as you can see in the figure. Click this edge 12 Learning solidthinking

How to Create a Fountain Pen 5) Click now the Fill path icon and then click the curve you have just extracted. With this procedure, you will cover up the hole.

13 How to Create a Fountain Pen 5) Click now the Fill path icon and then click the curve you have just extracted. With this procedure, you will cover up the hole. 6) Click the Combine icon and click first the revolution surface (object A), then the filled hole (object B). Press Spacebar. to end the command. A B Learning solidthinking 13

14 Lesson 4 7) Click now the Round tool. Confirm Tolerance and sew tolerance value by pressing Enter. Pick the surface, then the edge and press Spacebar. 8) At the Radius prompt type 0.3. Edge to pick Rounded Edge 14 Learning solidthinking

10) Click the Fill path icon and then click the curve you have just extracted.

15 How to Create a Fountain Pen 9) Click the Edge extract icon and click the hollow surface in the front side of the pen.. Select the inner edge as shown in the figure. 10) Click the Fill path icon and then click the curve you have just extracted. You can select it also in the World browser. With this procedure, you will cover up the hole. Learning solidthinking 15

11) Activate the Right View, click the NURBS curve icon and draw the following curves.

16 Lesson 4 This is what your pen should look like. At this point, only the clip present in the pen cap is missing. 11) Activate the Right View, click the NURBS curve icon and draw the following curves. Curve Top: #1(0, -33.1, 2.6); #2(0, -28.1, 3.8); #3(0, -23.7, 2.9); #4(0, -22.7, 2.4); #5(0, -22.5, 2); #6(0, -22.5, 1.9). 16 Learning solidthinking

17 How to Create a Fountain Pen CurveBottom: #1(0, -33, 1.8); #2(0, -31.3, 2.6); #3(0, -27.8, 3.2); #4(0, -26, 3.1); #5(0, -24.6, 2.8); #6(0, -23.4, 2.6); #7(0, -23.1, 2.2); #8(0, -22.9, 1.9); #9(0, -22.5, 1.9). 12) Click now the Circle: center, radius icon and accept all the default values. 13) Click the Birail icon and select the Profile curve (Circle), Rail curve #1 (Curve Top) and Rail curve #2 (Curve Bottom). You will so obtain the pin. Learning solidthinking 17

18 Lesson 4 14) Click the Sphere icon and accept the default Local Axes Origin = 0, 0, 0 and Radius = 1. 15) Use the Translate command to position the Sphere as in the figure below. 18 Learning solidthinking

19 How to Create a Fountain Pen You have so reached the end of this lesson. Your fountain pen should be similar to the one you see in the following figure. Learning solidthinking 19

20 Lesson 4 20 Learning solidthinking

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