Bibendum chair tutorial, part 2

Sitting area

My name is Matus and I would like to invite you to reading and following this tutorial. If you missed previous tutorial (making of upholstery) click here to visit the page.  So this is where we had finished a few days ago:

Now we are about to make the sitting part. Create new curves and adjust them like you can see in the picture:

Create section curve, adjust its height – middle control point goes higher a little bit. Then select all of the curves and create surface using Curve Network command from the Surface menu.

DupEdge command will duplicate edges of this new surface. Move these duplicated edges down, as you can see in the picture, so we get a border of lower part of sitting area.

Make section curve of sitting area upholstery, exactly in the middle of the model. See next picture. End points of this curve MUST lay on upper surface and lower curve. (top and bottom of sitting area)

Divide upper surface into two halves, and then delete one of those parts. Rebuild this half by 20 by 20 control points and adjust position of the points on the outer side of sitting area, so you get here some nice detail. Create half of the surface of the bottom part in this step as well. Create section curves like you can see in the reference blueprint. Connect them using lines aproximately in the middle of these section curves.

Rebuild them and adjust position of control points like you can see in the picture.

Final shaped curves can be seen in the next picture:

Now we are going to create surface by surface. Everytime select all edge curves and section curve created in the last step. Go to Surface menu and select Curve Network command, so you will get surfaces like this:

Now finish all of them and take a look how your upholstery looks.

Well, we have just finished the whole upholstery part of Helena chair. It wasn’t complicated, was it? Click the image to see full resolution picture.

Leather foldings

Let’s continue! Use the Hide command to hide all unneeded surfaces, so only the upper and lower part of the sitting area is visible. DupEdge command will duplicate their edges. Join command will join them to 2 closed curves.

Do the same with side upholstery:

Now it’s time to make leather foldings (or something what will look like them). Use Pipe command and select curve by curve. Use radius of 1mm.

Do the same operations with upper part, so you will generate foldings in this part. Here you can see rendered viewport with shadows (live viewport in Rhino5). All leather surfaces are done, materials are not applied yet. DO NOT EVEN THINK ABOUT JOINING SURFACES! If you join them, mapping options will have no Default mapping options anymore, so you will have to map surfaces in a much more complicated way!

And we are done with all upholstery and foldings. Any problem? Let us know!

Lower part, legs

Okay, now we are about to make legs. First of all, use planar views to make curves in the middle of future tubes.

Use pipe command, radius 20mm so what you get is pipe 40mm thick.

Boolean union command will boolean both pipes. They have edge in common now. Fillet this Edge by radius of 2mm.

Here is the result of this step:

And the whole chair can be seen here:

And rendered viewport with shadows in live viewport of Rhino5:

Okay, people… We are done with modeling section. What do you think? Did you like this part of tutorial? If yes, share it on Facebook, Twitter, StumpleUpon, Buzz, Digg or anything else :) And don’t forget to leave a comment under the article. Thanks for reading it to this point! Have a nice day.

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