Variable Force Spring Design

Mark the starting datum, critical events, target bands, motion directions and approved working interval directly on the requested curve.

Only when their installed profiles, directions, geometry and approved travel satisfy the same functional requirements.

It may not reproduce the relevant contact pattern or transition behavior. Include the actual partial-stroke sequence.

Use an agreed upper and lower limit at each functional position, with a stated measurement method. A band should not hide unacceptable local excursions.

Only after reviewing the required force at each position and the revised attachment, travel and stress conditions.

Verify the mechanism still tracks reliably and overcomes necessary resistance without relying on accidental friction.