Small machines, closely observed.
Photographs, callouts and working notes on the parts that make things move.
Sheets
01–03 on this page
Subjects
Mechanisms, boards, parts
Scale
Not to scale
Method
Observed from photographs

Callouts
- Two toothed gears mesh at the top, so both jaws appear to move together.
- Linkage arms carry each finger; a screw marks every pivot.
- Soft black caps cover both fingertips.
- A small camera sits on the blue frame, looking down past the jaws.
Facts
| Subject | Two-finger gripper |
|---|---|
| Seen from | Above, over marker cubes |
| Status | Observation study |

Callouts
- A blue multi-pin connector runs along the left edge.
- Cylindrical capacitors stand in a loose cluster; their printed values are not relied on here.
- A small red switch sits beside a black socket at the corner.
- Brown residue surrounds the corner mounting hole.
Facts
| Subject | Circuit board corner |
|---|---|
| Seen from | Close, at an angle |
| Status | Observation study |

Callouts
- Five laptop-size modules lie parallel on a pale surface.
- Each shows four black chips on its visible side.
- Gold edge contacts carry a notch set off-centre.
- Only the nearest two are in sharp focus.
Facts
| Subject | Laptop memory modules |
|---|---|
| Count | Five |
| Status | Observation study |