clickety clackety clock
January 8, 2025 10:36 AM Subscribe
An electromechanical seven-segment display. Single link youtube, fourteen minutes. Three-dee printing, hand-wound electromagnets, a couple of design iterations, and a result which satisfies even if you can see some tweaks for the next version.
Technology Connections also has a great vid of a similar concept.
posted by alex_skazat at 1:43 PM on January 8
posted by alex_skazat at 1:43 PM on January 8
Very nice. PCBWay seems to be a really great company...but I wish there was a domestic version in other continents. Of course selfishly I mean North America. I don't think such a thing exists!
posted by TreeRooster at 2:45 PM on January 8
posted by TreeRooster at 2:45 PM on January 8
There are small run quick turn-around PCB fabs in North America, but not at those prices.
posted by Horkus at 3:57 PM on January 8
posted by Horkus at 3:57 PM on January 8
That was satisfying. All the clickity!
posted by GenjiandProust at 4:07 PM on January 8
posted by GenjiandProust at 4:07 PM on January 8
In a comment, he mentions he did this during high school exams. Is this guy really a high school student??
posted by I-Write-Essays at 4:35 PM on January 8
posted by I-Write-Essays at 4:35 PM on January 8
"… he mentions he did this during high school exams … "
In his Jan 2024 profile on Instructables he writes: "I am a soon-to-be first-year mechatronic engineering student from Australia."
So, it seems that he well could have been in high school at the time he built the display system.
posted by bz at 5:36 PM on January 8
In his Jan 2024 profile on Instructables he writes: "I am a soon-to-be first-year mechatronic engineering student from Australia."
So, it seems that he well could have been in high school at the time he built the display system.
posted by bz at 5:36 PM on January 8
There are small run quick turn-around PCB fabs in North America, but not at those prices.
Yeah, I always think WTF when I see some massive like 10" x 10" $hundreds+ OSH Park PCB in someone's hobby project like the bespoke A2000 motherboards or the sunflower iMac M1 motherboard conversion. Like, bless him, Laen does good work, and sometimes the difference between a 4-5 day domestic turnaround is worth the price, but the last time I put in an order (which was a few years ago), the Chinese vendors (pcbway/jlcpcb, at least) with like $30 DHL Express shipping can get it to you even quicker in some price brackets, which is kind of wild.
posted by Kyol at 6:20 PM on January 8
Yeah, I always think WTF when I see some massive like 10" x 10" $hundreds+ OSH Park PCB in someone's hobby project like the bespoke A2000 motherboards or the sunflower iMac M1 motherboard conversion. Like, bless him, Laen does good work, and sometimes the difference between a 4-5 day domestic turnaround is worth the price, but the last time I put in an order (which was a few years ago), the Chinese vendors (pcbway/jlcpcb, at least) with like $30 DHL Express shipping can get it to you even quicker in some price brackets, which is kind of wild.
posted by Kyol at 6:20 PM on January 8
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posted by Wretch729 at 12:35 PM on January 8 [1 favorite]