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2d to 3d step by step? (solidworks) 1

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3ooody

3ooody

Electrical
Apr 23, 2010
15
Hi every body, I have this picture attached, it is a 2d picture, i want to make it 3d, I've tried so hard but I just can't do it, I need step by step help, any ideas?
 
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to elaborate, in the picture there are two parts, i want to combine them in one with some modifications, I'd appreciate a little help thanks.
 
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You can't do much with just a isometric drawing like that. It's possible to created models based off of plan-view concept drawings, by inserting the images and using them as guides for your sketches. There's software out there that will make models from pictures and photos, but they are expensive. I suggest starting from scratch as well.

"Art without engineering is dreaming; Engineering without art is calculating."

Have you read faq731-376 to make the best use of these Forums?
 
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Make that 3 start from scratch recommendations.

You will need a lot more information than shown in the drawing.
 
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The iso appears to have been heavily faked, e.g. by an illustrator, so even if you could insert it into SW on an oblique plane and process it with the 2D to 3D tools, you'd get garbage.

You need the 3D database that the illustrator was ignoring.



Mike Halloran
Pembroke Pines, FL, USA
 
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I need step by step help...
Click to expand...

How much prior experience do you have? Do you have a url to a portfolio of prior work (this isn't a beginner design). What training have you had? What SWx books do you own. Are you familiar with Ed Eatons tutorials? Mike Smith's work? Matt Lombard?

If all of these names are unfamiliar to you, you have quite a bit of prep work to do before tackling this design.

When you are ready to start the model I would visit a local junk yard and purchase similar parts off of a recked vehicle to use as reference.

 
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make that 4 start from scratch, "rollupswx" no i don't know any of the names, i'm an amateure to SW, zero, any way, i had two ideas for plan B & C, A was SW, B is to ta 3d scan the part, but i don't know any places around, besides it will cost, plan C is to take photos of the part in the engineering dimentions, insert them in SW then work on it, I'm a fast lerner, thanks every body for the help, I appreciate it, I'll update when i start something.
 
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plan C is to take photos of the part...
Click to expand...

This is a technique I often use - but keep in mind the photos are only reference - don't take them to literally as there will always be parallax error, but a combination of photos and calipers can get you a long way to the goal.
But first do a bit of research on surface modeling.
 
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There are plenty of programs around that will generate 3d clouds from multiple photos. The more you know about the optical properties and location of your camera, the fewer photos you need.



Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376
 
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I was trying to reach the manufacturer drawings, I'm sure they have a CAD file of the object, but who would want to give out their secrets.
 
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3ooody,

How accurate a model do you need? What do you need it for? These parts are not for the novice! Perhaps your need can be met with a reasonable representation of these parts. The automakers will not give out their moldline data (surfaces of the vehicle bodies) unless you are one of their direct contractors. The reflectors are typically far more complicated than a simple paraboloid due to the more sophisticated nature of the optics these days - they even take into consideration the optical effects of the clear covers. So if your needs are for the optics and you are trying to reverse engineer something I wish you a lot of luck.

Perhaps if you were to state your purpose we can give more specific advice that gets you there (or at least closer to your goal).

- - -Updraft
 
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Its a modifiction I'm working on, I run a small business in car customizing, and to modificate the headlights and corner lights my idea was to combine them in one part instead of two, with some light modification, after I combine them and get a drawing of the final element I was going to send it to a molding company to make the mold for me, basically thats it, I can just vacuum form the final product then send it for the moldiing company to do the design in computer, but the company said that it would cost less with the drawings, and besides I'm not that much with SW, thats why I looking for help, so I'm still in planning, didn't move on to work yet.
 
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I suggest you go through the 2D to 3D tutorial several times, and then a couple of sample parts from 2D orthographic drawings. The drawings they use as exercises in drafting books, e.g. vise parts and such, would be good.

By the time you get really good at that, you'll understand why the car fender is such a hassle that nobody's willing to do it for free.

Note also that the headlights and corner lights are subject to Federal regulations, so if you do substantial homebrew modifications to them, your customers may have difficulty getting their cars inspected and/or registered. Better to find a light assembly already engineered for another car, and adapt it to the one you're customizing.



Mike Halloran
Pembroke Pines, FL, USA
 
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Mike is correct on the federal regulations. Many of the specs are SAE. Companies that make headlights are serious about it and have photometric measuring equipment costing several hundred thousand dollars, so this is no trivial matter. They also use ray tracing software to analyze where the light goes so they are flying by the seat of their pants.

Are looking to make an aftermarket styling choice or are you actually proposing a different design to sell to the car companies? I assure you that both of these options are a very difficult path from the technical and sales side. The 3D modelling is trivial by comparison.

- - -Updraft
 
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Mike many car headlight companies in china and other countries design and modify car headlights or tail lights, for example the ones with LED, projectors, clear cover etc... and most of these products are approved and leagal, they just give better inhanced lighting or even just a good look, and UPDRAFT... I want to make an aftermarket styling choice, I already told the company that makes the mold what i need, the company I contacted is specialized in car light manufacturing, its just that they said give us the design and/or the product and we can make the mold you need, but submitting both (design & product) would be better, they will desig a SAE dot certified light, so there is nothing illeagal in it.
 
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