Over the years, we have seen many changes on the 7-segment display. The most interesting of these is the mechanical version of the most common LED-based project.This week’s offer comes from [John Burd], He posted a very strange video showing the clock he made.But look at the YouTuber’s antics and you will see The stepper motor he used to turn the fan-shaped dripping with elegant beauty. (Video, embedded below.)
Ok if you want to listen [Charlie Sheen] Say “Raspberry P-eye”, this is the video for you. [John] Use Cameo to let (ex?) celebrities talk about things used to make clocks. Like we said, the video is weird. Let us accept it right away, and then never talk about it again.
The problem is that building is a good idea. [John] Equipped with some stepper motors, you can purchase them at a relatively cheap price from Ali Express, etc. Usually, they are about one or two dollars each and have several wings for screw mounting brackets. This is based on the segmented displays that we have seen using amateur servos, allowing you to better control the way the segments move. Of course, the 90° rotation is not very useful, but it will be smoother and you can be interested in the kinematics of your choice. The only room for improvement we see is the alignment of the clips when they are “closed”, because you can see that the center clip in the video thumbnail below is not very horizontal. Maybe the linkage mechanism can align the hinge mechanism more accurately while hiding the servo itself behind the mounting plate? It is now in your hands!
In the demo video, you will also find some interesting test benches to prove the project. One is just an endurance test mechanism, but the other two envision water-driven parts. One uses colored liquid to pump out a hollow, transparent part. Another attempt was to use water droplets sprayed in the air to illuminate the laser segment. Both are cool, and we hope to see more weird ways to remind us of ferrofluid clocks.