Build working computers out of marble runs! Build a new digital logic circuit each week using the GraviTrax marble run system.
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Build working computers out of marble runs! Build a new digital logic circuit each week using the GraviTrax marble run system.
source
Marble gifts your loved one will love (paid links): GRAVITRAX SETS β» GraviTrax Star Wars …
For this one, you need a good synchronization between inputs. Have you another solution when the inputs come with a delay ?
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