For gold it should contain a succession of lighter and darker shades of yellow, maybe also a bit of orange, for bronze also yellows with a shade of green (copper oxidation is green), for steel it should contains greys, the chrome is also greys but more reflective (more contrast, from almost black to almost white), silver is less reflective grey and so on. The first step is to define the color, and metallic is not a color, the metallic look of a surface is given by light reflection, so we will use a multistop gradient (a gradient with more than two colors). Now we will make the gears "real", emulating a metallic surface, like gold (or call it bronze, the process is about the same). You may want to increase the complexity further by adding some parallel gears, which may have their own parameters (as long as they are not coupled with the initial gears): The hole for the axis is another circle aligned to the center and substracted from the wheel:Īnother gears coupled with it must have similar teeth, so use the Gear effect and change only the number of teeth: Select both rectangles and rotate them freely:įor the middle of the gear create a small circle, align it to the center and do another union: Add a rectangle and align it to the center:ĭuplicate the rectangle and rotate it 90°: Then substract the circle from the wheel (you may need to ungroup once, as the Gear effect created the wheel as a group): A while ago I was drawing some gears in Inkscape for a Fedora 10 theme proposal and seeing it is not hard at all, I decided to write a tutorial to share the fun with everybody.įor this the easiest way is to start with an effect included in Inkscape (for the current version 0.46 you can find it in Effects > Render > Gears and in the upcoming 0.47 it was moved to Extensions > Render > Gears).Ī few parameters to adjust (with Live Preview enabled to see their effect in real time) and we get a toothed wheel:Īnd use the Align and Distribute dialog to align it to the center (I used here "e Relative to: Biggest Item"):
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