computer-aided design

3D

3D is An object with three dimensions (such as height, width and depth) like any object in the real world. Example: your body is three-dimensional. What makes something 3D? Is it the way it looks? An easy way to think of a 3D shape is any shape or object that takes up air space. Think about your own body for a minute. Your body is a 3D shape. It is not a uniform shape, like a building block, but it is a 3D shape, nonetheless. What makes your body a 3D shape? Does it take up air space? Of course it does; you can't be at the same spot as anyone else. You can't take up the same space as a chair or a dog or anything else. Only you can occupy your space. This is what makes a shape 3D. What makes something 3D? Is it the way it looks? An easy way to think of a 3D shape is any shape or object that takes up air space. Think about your own body for a minute. Your body is a 3D shape. It is not a uniform shape, like a building block, but it is a 3D shape, nonetheless. What makes your body a 3D shape? Does it take up air space? Of course it does; you can't be at the same spot as anyone else. You can't take up the same space as a chair or a dog or anything else. Only you can occupy your space. This is what makes a shape 3D.

FreeCAD

FreeCAD is a parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters. FreeCAD is open-source and highly customizable, scriptable and extensible.

Pen sketch

FreeCAD dimensions

FreeCAD 3D pen sketch

FreeCAD 3D

SolidWorks

SolidWorks is a solid modeling computer-aided design (CAD) and computer program that runs on Microsoft windows. SolidwWorks is published by Dassault Systemes. SOlidWorks is closed source,the minimum cost of a single license is about $4000USD.

SolidWorks dimensions

SolidWorks 3D pen sketch

SolidWorks part 1

SolidWorks part 2

Assembling all parts

Differencies between Freecad and Solidworks

Freecad is a very good programm because it is open source and it run in almost operating system. I am surprised of its possibilities.when I was design this object i show above, i have realised , and the only difficulties are been the slow velocity that i think to have found with complex objects.

SolidWorks is closed source, the mimimum cost of a single license is about $4000USD (most people who vaunt it and use it for their own personal use have a pirated copy but they will never have the honesty to say so).It only runs on Windows. Also SolidWorks it have many readable files than FreeCAD.But again FreeCAD have many languages setting than SolidWorks.

2D

Two-dimensional space is a geometric setting in which two values (called parameters) are required to determine the position of an element (i.e., point). In Mathematics, it is commonly represented by the symbol ℝ2.

Adobe Photoshop

Adobe Photoshop CC is an image processing software. This application allows you to create, edit images.with photoshop you can Create and beautify photos, images, 2D artwork and other content.

Raster Images

Raster (or bitmap) images are generally what you think about when thinking of images. These are the types of images that are produced when scanning or photographing an object. Raster images are compiled using pixels, or tiny dots containing unique color and tonal information that come together to create the image.

Since raster images are pixel based, they are resolution dependent. The number of pixels that make up an image as well as how many of those pixels are displayed per inch, both determine the quality of an image. As you may have guessed, the more pixels in the image and the higher the resolution is, the higher quality the image will be - but with a large file size.

For example, if we scale a raster image to enlarge it, without changing resolution, it will lose quality and look blurry or pixilated. This is because we are stretching the pixels over a larger area, thus making them look less sharp. This is a common problem, but can be remedied by using raster image editing programs such as Photoshop to change resolution and properly scale images.

Common Raster Image Types: JPG, TIFF, GIF, PNG, BMP

Vector Images

Instead of trying to keep track of the millions of tiny pixels in a raster image, vector images, or line art, keep track of points and the equations for the lines that connect them. Generally speaking, vector images are made up of paths or line art that can infinitely scalable because they work based on algorithms rather than pixels.

Adobe Illustrator is a vector graphics editor developed and marketed by Adobe Systems.

Difference Between Photoshop and Illustrator

Adobe Photoshop is a great program for modifying already created images or graphics, like photos, and is Adobe's most popular program. Raster or bitmap graphics are created in Photoshop. These graphics can sometimes look a little jagged since raster images are made up of individual colored squares, known as pixels. Everything in Photoshop is just a series of pixels, so if you're scaling something up or down, it can lose its quality very quickly. Photoshop is a popular choice for web graphics, photo editing and designs since those projects will stay at a fixed size. Editing photos is awesome in Photoshop, because it includes a lot of unique filters, special effects and tools. Another great benefit of Photoshop is that you can have complete control of your projects, since you can edit your graphic pixel-by-pixel. Our friends over at Smarterer have a great test you can take for free to see how well you know Photoshop.

Adobe Illustrator is an advanced vector-based software. So, unlike Photoshop's pixel-based format, it uses mathematical constructs to create vector graphics. In Illustrator, a line is composed of two dots connected by a computer algorithm, instead of just a line of pixels. Because of this, Illustrator is used often to create logos or anything that may need to be printed or displayed at different sizes. A vector graphic will never lose its quality if it's scaled up or down. Illustrator will also give you a better print output since it's not resolution dependent. A drawback of Illustrator is that it can't be used easily to modify images that are already created, since there are limited filters and image editing tools available to you. To see how well you already know Illustrator, check out this Smarterer test.