Hardware concepts and studies · 2024
Small parts, stubborn constraints.
Two spring-mechanics studies and a sketch for a light-sensing servo.
The spring calculations are learning notes. The servo is a proposed new device, retained only as an untested code sketch; the repair and diagnostic discussion is excluded.
The working material
3 artefacts · read or download
- 01A spring that cannot compress to the target heightMechanics study↗
English translation of the Portuguese source. Original solid-height calculation. The later redesign advice is omitted because it did not resolve the stated solid-height constraint.
- 02Changing the spring wire diameterMechanics study↗
English translation of the Portuguese source. The ratio assumes the remaining spring geometry and material stay fixed. This is a calculation from the design discussion.
- 03A light-triggered servo sketchCode example↗
English translation of an Arduino sketch for a proposed light-sensing actuator. Retained as a new-device concept from a mixed session; the appliance diagnosis and repair steps are excluded. No physical build or solution to the later capacitive-touch requirement is established.