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Step 7: Create Shoulders

Summary of the commands to use in this step:
  • "Sketch Plane" sub menu in "New Sketch" pill on "Sketch" Marking Menu
  • "Draw" pill function in "Sketch" Marking Menu
  • "Repeat" pill function in "Sketch" Marking Menu
  • "Revolve" function in the"Create" Marking Menu
  • "Snap Menu"
  • Keyboard Input
  • Navigating Drawing Screen with Hand Tool and Mouse Scroll (middle) Button.


And these are the steps:

1. Rendering of the shoulder 3D model that we are creating.
2. Cross-section or profile  of the shoulder, with dimension to be drawn in 123D

Continue working on the same file as in last Step,

3. On the "Sketch" Marking Menu, select  New Sketch pill function.
4. Select XZ plane on the Origin Coordinate or "Front" plane (plane on XZ)
5. Set "View Cube" to the FRONT view.

6. The front plane appears with the Origin is on the lower left corner (red dot).
7. Right click on the mouse, to drag the drawing plane closer. Until the Snap value in the Snap Menu display the amount of 0.5
8. Select "Draw" pill in t he "Sketch" Marking Menu
9. Set the starting point at 5mm and 0mm. Then draw the straight line upward at 10mm long.
10. And draw a perpendicular line to the previous line by draw the end point to the left, and input the amount of 1.5875mm using the keyboard input.

11. Continue to draw the line in upward direction, using the keyboard input to enter 12.7 for the length of line.
12. Drag the endpoint of line in the Y direction (toward the right), and enter the length of the line as 11.2mm.
13. Drag the next endpoint downward, and enter 12.7mm for the length of the line.
14. Drag the next endpoint toward -X direction (to the right), and enter the value of 6.6125 for the length.
15. Drag the next endpoint of the line toward -Y direction (downward) and enter 10 for the length of the line.

16. Then join the next end point to the start point of the profile.
17.  We now got the cross-section of the shoulder. Next, we will revolve the profile to create solid model.
18. Before we could "Revolve" the profile, we need to draw the revolving axis first. Select "Repeat.." pill on the "Sketch" Marking Menu.
19. Set the starting point of the line at the position of 11.1125 and 10, by using the keyboard entry.
20. Drag the endpoint of the line upward. And enter the length of the to any amount you preferred.

21. We are done with the shoulder profile. And ready to make a "revolve" the profile to make solid model. It a good time to save the file now.
22. Use "View Cube" to set to "Home" view.
23. Use "Pan" function from "Navigation" Tool Menu to reposition the drawing in the middle of the screen.
24. Use mouse "Scroll" wheel (middle mouse button) to scroll drawing closer.
25. Select "Revolve" pill from "Create" Marking Menu.

26. Select the profile when 123D asks for it, and select the axis of revolution. (Note: We did this command before in creating ear steps.)
27. Click at drop down arrow next to keyboard input box, and Select "Full" function from the list.
28. Right click mouse buttom to bring up Marking Menu. Then click "OK" to commit the command.
29. Here we are, the incomplete shoulder. We are going to do some more editing to complete the shoulder solid model. Save the file!


 

<p>Thank you very much for the link, I do really appreaciated!</p>
<p>www.tinkercad.com is the easiest modeling tool ever</p>
<p>Thank you very much for the link, I do really appreaciated!</p>
Dear, Edgar, <br>Thank you very much for the link, I do really appreaciated!
Hey Sath, when I'm drawing something with multiple parts I usually want to draw it as it would be constructed, essentially drawing the assembly and the parts at the same time. You drew everything at the origin and then moved it, why is that? I think I may be doing it way backward or weirdly.<br> <br> Also, when submitting a model for a Instructables free print, can you recommend a minimum distance that the parts should be from each other? I'm assuming that if the parts are to close together they are difficult to clean well. Maybe this picture can explain what I'm asking.<br> <br> Thanks in advance champ.<br> <br>
<br>May be I got used to do stuff start from 0,0,0 or the habit of using absolute coordinate instead of relative! (This habit might have started since I used the drafting table to draw stuff! :P) <br>I think it would be a lot easier to explain or show others in this instructable to draw stuff starting from origin(absolute) and then move thing around (relative) to the origin (0,0,0). <br>One other reasons was built 3d model base on origin, i,e center of the object at 0,0,0, would make your colleague life's a lot easier, because he/she could load your model(s) up in their (large) 3d scene knowing that your model will be there at 0,0,0 and not any where else. Then they can move it to the location it supposed to be later. <br> <br>For the minimum distance, I use this minimum wall thickness chart from Ponoko's materials comparison chart <br>( http://www.ponoko.com/make-and-sell/show-comparison ) which vary between 1 mm to 3 mm., plus the thickness of the cutting tool that I'm using to cut e.g Xacto knife, saw, etc. The gap should be large enough to insert your cutting tool in and have some space to allow the tool to operate freely without scratching the surface. <br> <br>Hope this help. <br>
Oh yeah, definitely a help! Thanks again
So hard for me to learn to draw in 3-D which is the easiest program?
i meant to reply this in your comment box: www.tinkercad.com
Hi, <br>I don't know what to tell you! For the free 3D modeling app, Sketch up, Blender, and 123D, I only use 123D as my second choice 3D app. (I normally use 3DS Max) and I quite like it very much. <br>I would recommend. You can make a 3D model from photos of the object. You can check it out here. http://www.123dapp.com/catch <br>
www.tinkercad.com is the easiest modeling tool ever
Dear, Edgar, <br>Thank you very much for the link, I do really appreaciated! <br> <br>Things seem to come around, go around with the Brazil Connection. Once I was interviewed by the magazine &quot;Super Interresante&quot; from Brazil. <br>Here is the cover and my picture in the article. <br>
Great job! gone to my Portuguese langiiage Blog, so it will be big in Brazil: <br> <br>http://faz-voce-mesmo.blogspot.pt/2012/10/noticias-e-instructables.html <br> <br>As for being Windows only, there's Wine, the better-than-emulator, that runs Windows stuff, without the ugly Win-doze OS! :)

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Bio: I am Electronic Visualization Artist. I look at things through the Looking Glasses.
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