Sometimes we see projects that are so clever while being remarkably simple, that we can’t help thinking: Why didn’t I think of that! Take [Haresh Karnan]’s zipper robot, for example. It’s a well-designed 3D-printed shell with two geared motors for traction, that can both undo and do up zippers. Behind that seemingly simple design probably lies a huge iterative design process to arrive at a shape perfect for the job, but the end result is so elegant that even [Haresh]’s write-up and Hackaday.io page for the project are short and to the point. Download the STL file, snap in the motors, apply to a zipper, and away you go. He suggests rubber bands as a traction aid, but that’s pretty much it.
The results can be seen in the video below the break. While we might be tempted to make jokes about the terminally lazy using this device to save unnecessary labour after a toilet break, we can see that it might have a real application. If you have any friends with restricted dexterity you will understand how having an automated helper with such a fiddly task as a zipper could be an extremely useful accessibility aid.
While we’re on the subject of zippers, if you missed it a few weeks ago here’s our in-depth look at their story.
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