对称机器人

继我们完成大写字母和昆虫主题创作之后，又绘制了对称机器人，画出了最奇特、最具想象力的机器人形象。为完成这幅画，我们首先在半张描图纸上画出半个机器人；接着将其描摹到绘图纸上，再将该图形上下翻转后再次描摹，从而构成一个完整的对称图形。绘制过程中，我们参考了网络上的若干图片；但以下也提供了三份练习工作表，内含不同款式的头部、躯干、手臂与腿部部件，可供自由组合，拼装出属于自己的机器人。

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整幅画先用黑色永久性记号笔勾勒轮廓，再以油画棒上色，注意避免将颜色涂到黑色线条之上。待画面着色完成后，我们用黑色印度墨水将整幅画完全覆盖。最后，将画作浸入清水中，并用海绵轻轻擦拭，以去除多余墨水。若画面过暗，还可使用刮刀轻刮画面表面，部分刮除黑色墨层。该技法基于油画棒的物理/化学特性——能在其表面形成抗墨层。由此我们获得了极富趣味的肌理效果，令人联想到锈蚀、刮擦过的金属，赋予机器人一种“复古”外观。

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Symmetrical Robot

After the capitals and the insects we created the symmetrical robots, drawing the strangest and most immaginative robots. To realize this drawing we first drew half robot on half sheet of tracing paper. After that we copied it on a drawing sheet and copied it again turning it upside down, to complete a symmetrical figure. For our drawing we looked at some pictures on internet, but here below you can find three worksheets with different kinds of heads, torso, arms and legs to assemble in order to create the robot.

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The drawing has been traced with a black permanent marker and colored with oil pastels, taking care to not coloring on the black lines. When the drawing was finished we covered it completely with black indian ink. At the end we dipped the drawing in clean water and rubbed gently the drawing with a sponge, in order to remove the excess ink. If the drawing is too dark it is possible to scrape the surface with a scraper in order to partially remove the black layer. This technique is based on the oil physical/chemical property to create an ink-resist surface. We created very interesting textures, that remind us rusty, scraped metal, giving the robots a “vintage” appearance.

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