Geneva wheel : 無料・フリー素材/写真
Geneva wheel / athomson
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Turn the handle continuously and the star wheel rotates intermittently: en.wikipedia.org/wiki/Geneva_driveIt was printed with a rapid prototyping machine (3d printer) that constructs the models out of a very fragile chalk-like composite. |
| 撮影日 | 2007-03-19 13:32:41 |
| 撮影者 | athomson , Seattle, United States of America |
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