# Modeling a Desk Lamp

This time we are modeling a desk lamp. Probably the one most of us have on our desks.

## STEP 1

We will start from the bottom up. So, first we will model the bottom plate. Create two circles from the top viewport, one 11.9cm in diameter (if you see a diameter option in command, click it so it turns into Radius – that means the diameter is on) and other 11.5cm.

Then we will need three more circles (you can make them anywhere, just make them concentric). Make them 0.3cm, 0.6cm and 0.8cm in diameter.

Now, using Mid, Quad and Cen options in Osnap, position these three little circles on the End (or Quad) point on the outer bigger circle. And move those three from right to left by 0.85cm.

Now we need three more groups of those 3 circles. So, we will use Arraypolar, and array them 4 times around the center of bigger circles (in my case that is 0,0 as I usually have my models in the origin).

Now, select the inner circle of two big, and outer circles of each three-group circles and move those circles up by 0.25cm (from front viewport):

Now, select and copy the inner circle of two bigger, and move it up by 0.55cm

Now, copy the outer circle, and move it up by 0.8cm:

Now, back to those 3-group smaller circles. Select the inner one (4 of them) and move up by 0.75cm. Then, copy those moved circles, and move the copied ones up by 0.2cm.

Now, pick one group of circles, and we’ll start making the boss. Create a surface between two smallest circles. I used extrude, but you can use as well.

Now, the bottom one, I’ve extruded it to the bottom small circle (here, if you want to use loft, you need one more circle that is in the same construction plane as the bottom smaller circle).

And then, extrude the biggest circle to the upper small circle:

Now, we need to create the surfaces between inner and outer circles. We’ll do that with PlanarSrf.

those surfaces, and like we did for the circles.

Now, we’ll make the bottom surface, so select outer circle, and 4 little ones and using make a surface with 4 holes (just run PlanarSrf command and hit enter):

Repeat the same step for upper 5 circles:

Now, using the command, make a surface out of outer circles (Use the straight sections in style option) :

those surfaces, and we’re done with the plate.Theres just one thing to do, that is fillet the edge. So, using and 0.1cm as radius, fillet the shown edge:

Pages: 1 2 3 4

used 32 commands

### 22 Responses to “Modeling a Desk Lamp”

1. uros says:

Congratulations!
I like your side, news, video tutorials…etc. But in tutorials I would include also .pdf tutorial on the end (it is much easier to read and to see the pictures).

Keep with good work!

Best regards,
uros

2. Ivan Vuzem says:

well thanks. I’ll think about pdf, if theres a good and fast solution to creating pdfs then fine π
thanks, I just hope few more ppl would find my efforts worth and help me out with writing tutorials, so I can learn something too π

3. leyla says:

hey thanks alot for ur tutorials i reallyyy learned alot. but i just want to ask u a tinny favor …iz it possible to put the photos little bit big size. i know if i ckick i can see big size but when iam printing they became small:((( sorrri to asked alot

4. GHaup says:

Thanks a Lot Dude! It was very joyful
Its impressive the way you make your tutorials… so detailed

5. hokr says:

6. michael says:

great rhino tutorial, especially the shelling. i have a question: in a few places (e.g. third step on page 4) you do a trim that also seem to create fill surfaces. e.g. when you trim the three extruded rectangles through the shelled lamp head, you appear to be getting a solid result. When I do it, I have to creat the vertical fill surfaces by hand. Is this something you’re leaving out, or am I misunderstanding?

thanks again, these are the best notes i’ve ever seen. i’d love to see pics & text of how you set them up, & how you measure the object for the modeling.

7. Ivan Vuzem says:

well, since we are extruding those three rectangles, and trimming the extruded surfaces with the shell, I suppose either you are doing something wrong, or you did something wrong π but keep trying

8. michael says:

Whenever I *trim* a solid with another entity (curve, surface, or solid) the result never seems to be closed; only if I do a *boolean subtract* is the result closed. E.g. make a cube and trim out a hole with an extruded circle: there will be two circular holes in the cube’s faces, but no interior cylindrical wall. If you send me an email address I’ll send you pictures of what I mean. But I really *want* it to work like you say! Thanks for any explanation…

9. Noah Phense says:

Bad Ass! Learned a lot during this tutorial!

10. michael says:

Oh, wait, I see what you’re saying: trim A to B then trim B to A and join…right?

11. Ivan Vuzem says:

well, boolean operations work actually the same as trim and join, but you do it in one step and one command and sometimes avoid unnecessary problems. I am just too much used to trim so I often forget to use boolean π

12. akwah solomon says:

teach me to know more about rhino.

13. Flash Gordon says:

It would be nice if the blueprints weren’t in pdf… ya know so you could actually use it maybe.. just a thought. It would be much easier to make the body shapes using profile curves from a bitmap but you can’t get a bitmap.

14. Flash Gordon says:

your tuts suck. I could getter better tuts from a retarded aspergers baby

15. Ivan Vuzem says:

You can look up on vector graphics on wikipedia if you can’t grasp how vector is more powerful than raster. http://en.wikipedia.org/wiki/Vector_graphics

And in case you didn’t know, you can export pdf-s into jpeg images which then you can insert into Rhino.
With a little more “advanced” rocket science, you can actually import vector graphics as curves into Rhino, which is another reason why I provide vectors.

16. A Rhino User says:

Good tutorials – thanks! I agree with the presentation though – itΒ΄s difficult to keep flipping betweeen instructions and the images for clarification. Maybe you could use a plugin like Simpleviewer so that when you click on the image, it is overlaid over the current page at a large size.

17. g.sahin says:

another good tutorial!! thanks a lot again. but this time I had so much trouble with triming two surfaces in the 4th step. I can not trim just with one click, I mean after first trim there is still surfaces that I have to click on to continue triming. is it the only way or am I making a mistake? please give us some tips about triming…

18. Luis says:

Great tutorial.
You can view my render in the forum π

19. Alica says:

Nice tutorial…:) Is there something like video of this?:)

20. Michael says:

Do you know if Rhino for OSX has the PlanarSrf command at this point. I am a newbie and cannot connect the surfaces making up the small circle to the big in part ten of step 1

21. Paul says:

Great tutotial.
I can really use some steps for my next project, on which I now was stuck.
Do you have also vids on YouTube?
Best regards Paul

22. shruthi says:

what is Rhino OS X
Is this a 3d software