Uploaded October 2020 | Updated September 2026, 2 weeks ago
Mechanical 7-segment digital clock driven by only one RC servo motor. All segments and carries (10, 60 minutes and 12 hours) are mechanically resolved.
3D data and codes are available at
thingiverse.com/thing:4626956
It consists of 54 types, 115 parts printable with common 3D printers. You also need
- 1 RC servo motor (normal size)
- 1 micro:bit and 5V power supply (break-out board, etc.)
- 7 rubber bands
- 15 M3 bolts
- paint (ex. white for black 3D printer material)
Necessary tools
- sand paper or file for deburring
- soldering iron for welding plastic (see youtube.com/watch?v=qPNacMCvSvQ )
- M3 screw tap (if you do not use tapping screw)
- Silicone grease or spray for lubrication
My works on digital fabrication:
shiura.com/dfab/index-en.html
Please subscribe my YouTube channel if you like!
Mechanical 7-segment digital clock driven by only one RC servo motor. All segments and carries (10, 60 minutes and 12 hours) are mechanically resolved.
3D data and codes are available at
thingiverse.com/thing:4626956
It consists of 54 types, 115 parts printable with common 3D printers. You also need
- 1 RC servo motor (normal size)
- 1 micro:bit and 5V power supply (break-out board, etc.)
- 7 rubber bands
- 15 M3 bolts
- paint (ex. white for black 3D printer material)
Necessary tools
- sand paper or file for deburring
- soldering iron for welding plastic (see youtube.com/watch?v=qPNacMCvSvQ )
- M3 screw tap (if you do not use tapping screw)
- Silicone grease or spray for lubrication
My works on digital fabrication:
shiura.com/dfab/index-en.html
Please subscribe my YouTube channel if you like!
