Who doesn't love a seven segment mechanical counter?? So I figured why not over-engineer a 3D printable one you can make yourself!
This is PART 2 of my electromechanical seven-segment display project, part 1 can be found here: https://www.youtube.com/watch?v=np4NRMKOG6U
If you want to build your own display, check the instructable link below for a FULL build tutorial and FREE files & code: https://www.instructables.com/3D-Printed-Electromechanical-7-Segment-Display/
Just want the modified parts?? You can find them here! https://makerworld.com/en/models/1065603#profileId-1054609
Thank you PCBWay for sponsoring this video. You can find them at https://pcbway.com/g/Ko3Nl8 for PCB manufacturing, 3D printing, and CNC services. By using the referral link, you will save $5.
Disclaimer: This video was made for entertainment purposes. Don't do anything stupid when trying to recreate this project :)
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Chapters:
0:00 Introducing the 7-segment display
0:46 Version 2 of the mechanical display
1:04 Q1 - Why do the flaps flip sequentially?
1:40 Q1 - Capacitors vs Batteries
1:58 Q1 - Code breakdown
2:18 Q1 - Custom website
3:06 Q2 - Can I buy a mechanical display?
3:52 Q3 - Why use two electromagnets?
4:47 Q4 - Software for PCB Design & CAD
5:14 Q5 - Alternatives to 3D printing
6:10 Q5 - PCBWay
6:24 Q6 - Why use slimmer segments?
6:38 Q6 - Maths and Torque
7:04 Q7 - Usecases for mechanical displays
7:32 Q7 - Splitflap displays
7:52 Q7 - Hobbyist Clock
8:10 Q8 - Why use relays?
8:26 Q8 - MOSFETs
8:37 Q8 - Explaining multiplexing
9:55 Q8 - Schematics
10:10 Q9 - Why not paint the magnets?
10:30 Q9 - 3D printing new parts
11:54 Q9 - Improving the old mechanical display
12:04 Q9 - The new flaps
12:55 Q10 - Time and cost
13:12 Q10 - 3D printing
13:28 Q10 - Winding coils
13:52 Q10 - Soldering the PCBs
14:16 Q10 - Main assembly
14:44 Q10 - Total cost
15:12 Version 2 issue
15:26 PCB v-cuts
15:36 Flyback diodes
16:06 Engineezy's Design
16:24 FLIP FLAP FLOP
16:45 80085
17:05 FLIP FLAP FLOP
21:30 Thank you!
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The BEST Mechanical Display You've EVER Seen!!! - Tin Foil Hat
Special Thanks To:
Stuff Made Here (Automatic pool stick vs. strangers) & Collin Furze (DIGGING A SECRET TUNNEL) for inspiring me to start making videos and engineering!!
Music:
https://uppbeat.io/t/brock-hewitt-stories-in-sound/ages-ago
License code: WJVCMPSUPNQRRX7J