Modeling Racing Seat

In this lesson, you will learn how to modeling racing car seat in Rhino 3D.



Step 1

To begin with i want to tell you that this is not a tutorial for beginners and that it is time demanding. Also i apologize for any grammatical and such errors in this tutorial. To begin with you will need a curve like this,





Step 2

and another like this.



Step 3

Make a sweep along one rail



Step 4

Then you need a curve like this (the upper part is the curve from the first image and the two on the sides are blends).



Step 5

Join these curves and make a 0.125 offset on the inner side, and you will need a curve like this:



Step 6

then trim that curve and the offset curve like this:



Step 7

Fillet the edges, 5.0 on the left side and 1.0 on the right.



Step 8

Join the curves and offset them 0.25 on the inner side and with that curve trim the surface



Step 9

xplode the outer curves and join them again but without the upper curve. Then do a Sweep along one rail with the outer curve as the rail and the edges of the surface as cross-sections.



Step 10

Join the two surfaces, and make a Mirror of the surface and the curve.



Step 11

Then make a straight line and a curve (i used Arc: 3 points with a 2.0 offset to make it).



Step 12

Make a Sweep along two rails (rails: two last curves, cross-sections: curve from the fifth pic. and her mirror).



Step 13

Move the two ending surfaces 0.25 toward the center and trim the center surface with those two surfaces. Make two lines like this and trim the center surface with them.



Step 14

Make two curves (arc command) and join them.



Step 15

Turn on Osnap: Near and place the curve in the center of the trimmed surface (preferably on the most vertical position) place an identical curve on the rear, the same way you did with the previous,



Step 16

and another one in the middle.



Step 17

Make a Sweep along two rails, and join all the surfaces into one.



Step 18

Make a 2.0 offset of this curve and fillet the sharp edge, 0.25



Step 19

Rotate it and make a surface from the curve (Surface from planar curves).



Step 20

then make a blend between that and the surface next to it.



Step 21

Make a curve like this (arc command, 0.25) and place it and place it on the most vertical place using Osnap.



Step 22

Make a Duplicate edge on the surface and join the curves into one, then make a Sweep along one rail curve using that curve as the rail and the arc as the cross-section (set road like left or right in the dialog box). Join all the surfaces, delete the right side and mirror the left, and that is the bottom of the seat



Step 23

For the upper part make a curve like this,



Step 24

And another one like this.



Step 25

also you will need a curve like this,



Step 26

and this.



Step 27

Make an Extrude curve on the last two curves



Step 28

Now project (Project curve to surface) the wider curve on the closer surface and the narrower curve on the other one.



Step 29

You will need cross section curves. This is the first:



Step 30

and this is the second (make those two curves and blend them into on).



Step 31

and the third looks like this.



Step 32

Arrange them like this (use Osnap: end & near).



Step 33

Then make a Sweep along two rails.



Step 34

Explode the polysurface and match these two surfaces.



Step 35

Make a curve like this (make sure that you do not cross the curve on the left).



Step 36

Then make a curve like this (or a similar one depending on the desired look of the seat).



Step 37

and arrange them like this.



Step 38

Then trim those curves so you end up with one edged curve, then make a Fillet edge (0.25 on the upper side, 2.0 on the lower side) and join the so you get a curve like this.



Step 39

For the cross-section you need two curves like this:



Step 40

Use Curve from surface network on the four last curves

 

Step 41

Make a curve like this



Step 42

copy it into three pieces and arrange them like this, and project them on the surface.



Step 43

Then delete the surface and remake it using those three curves as well. You should get something like this.



Step 44

Now extend the inner edge of the seat and Match it



Step 45

Trim the interior of the seat with the edge of the seat, and trim the extended surface with the interior surface.



Step 46

Make a curve like this (easiest with Osnap: end).



Step 47

Then make a Patch surface with the outer edge and the last curve (surface U & V span is 30).



Step 48

Seal the hole on the bottom with Surface from planar curves. Join all of those surfaces and on that edge make a 0.5 fillet edge.



Step 49

Now you should have something like this.



Step 50

Since the seat is finished you need to connect the two pieces, for starters duplicate the edges like this,



Step 51

then make two curves like this



Step 52

then trim those two curves.



Step 53

Make a plane surface and project the curves on it to get them in the same plane and Match the curves.



Step 54

Make a curve like this,



Step 55

and make an Arc, Start, End, Direction, (use Ortho & Osnap: end).



Step 56

On the open portion of the curve make a blend, and then join the curves. Then make a curve like this and extrude it,



Step 57

and then trim the extruded surface with the curve you made earlier.



Step 58

Extrude that surface by 4.0 and make 0.5 fillet edge on both sides.



Step 59

and arrange it like this.





Step 60

Mirror it and that is it. All that is left is the logo (witch coincidently covers a small error). Make an ellipsoid with measurements like this (Height - 2.5 Width - 6.0 Depth - 0.5) and arrange it like this.



Step 61

Trim the surfaces like this.



Step 62

The word in the logo i will leave for you to choose, Write the text with the solid option, and make a split between the seat and the text. That would be the end of the tutorial and this is the finished product.



We're done!

Enjoy!