Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3055206.
Accidentally fried a LED module, so I remixed this clock for 7 modules instead of 8, and now it also was printable in 1 part for me.
Print facing down. I made the first layer smaller (0.2mm) because the original size was too thick and the LEDs weren't visible even at the max brightness. Now it's visible even on the lowest intensity.
The LED segments fit snugly inside. I didn't have any spare Wemos D1 Mini boards, so I just used a LoLin v3 and glued it in the back. I removed the pin headers from the LED modules and soldered directly to the back of the board.
Original: https://www.thingiverse.com/thing:2867294 8 panel extended remix: https://www.thingiverse.com/thing:2951932