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→Step 4 Building the Gears
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The above picture is showing what I achieved with these gears, and I bought the initial material online. Here is the initial material (available in China only) : [http://trade.taobao.com/trade/detail/tradeSnap.htm?tradeID=122306748168870/ plastic gears], [http://item.taobao.com/item.htm?spm=1103QzuN.2-3EuJG.3-5v0*u5&id=12668819414&/ metal stick], [http://item.taobao.com/item.htm?id=12668843173/ plastic base bar], [http://item.taobao.com/item.htm?spm=1103QzuN.2-3EuJG.v-5uyAaS&id=12668879034/ plastic washer]. | The above picture is showing what I achieved with these gears, and I bought the initial material online. Here is the initial material (available in China only) : [http://trade.taobao.com/trade/detail/tradeSnap.htm?tradeID=122306748168870/ plastic gears], [http://item.taobao.com/item.htm?spm=1103QzuN.2-3EuJG.3-5v0*u5&id=12668819414&/ metal stick], [http://item.taobao.com/item.htm?id=12668843173/ plastic base bar], [http://item.taobao.com/item.htm?spm=1103QzuN.2-3EuJG.v-5uyAaS&id=12668879034/ plastic washer]. | ||
In the right picture of the “detailed look”, the gear stays at most left side is the last gear of the whole gears chain. | In the right picture of the “detailed look”, the gear stays at most left side is the last gear of the whole gears chain. | ||
Note: Since the material of plastic is quiet elastic, the Lego based scanner is kind of loose and the belt connecting the stepper with the wheel also brings some problem like sliding issues. It would be much better if you can build the “professional” one. However, you need to gain some experience with the mechanical tools and the “professional” gears are not so easy to find, unless you build your own with laser cutter or 3D printer. | Note: Since the material of plastic is quiet elastic, the Lego based scanner is kind of loose and the belt connecting the stepper with the wheel also brings some problem like sliding issues. It would be much better if you can build the “professional” one. However, you need to gain some experience with the mechanical tools and the “professional” gears are not so easy to find, unless you build your own with laser cutter or 3D printer. | ||