This slimmed-down mechanical seven-segment display is a perfect example ... making the display pretty bulky front to back. Version 2 of the display takes a page from [Carl Bugeja]’s playbook ...

[Lewis] has just the thing for that: a big expandable 7-segment display. The build is modular, allowing it to be extended from 2 to 10 digits and beyond. The digits themselves are made of 3D ...