Tilt one ball-joint stem in two directions without extracting it

Original, untested video brief. No input image or generated result is supplied.

1. Task and boundary

Move a rigid stem attached to one ball joint first toward the right and then toward the camera. The two stages must be separately readable: a single diagonal lean could still resemble motion around an ordinary hinge. Keep the spherical head retained in its original socket and the socket fixed to the table throughout. The task concerns changing orientation around one center, not inserting or removing a connector.

This original visual brief is untested. Use an open demonstration joint with enough upper ball surface visible to follow retention, and moderate tilts within the drawn socket opening. Do not ask for extreme travel through the rim. No dimension, angular range, bearing fit or load rating is being specified; the drawing supplies a visual relationship rather than a certified joint design.

2. Authorized first frame

Prepare an accurate drawing you own or may use. Show a spherical head partly enclosed by a fixed cup-shaped socket, with one rigid stem rising from its top. Mount the cup on a base with a visible right edge and front edge. Use a locked three-quarter viewpoint so rightward movement and movement toward the foreground are distinguishable.

An original hand already holds the upper stem, leaving the sphere and cup rim clear. Keep a small colored mark on the exposed sphere near the stem root to help track continuous rotation. The input must show that the ball is retained below the rim; a loose sphere merely resting on a shallow saucer would depict a different contact.

3. Use the generator

Open the current image-to-video generator in a mode accepting your authorized first frame. Paste the complete prompt, check the available settings and cost estimate, then submit only when ready. This page supplies text; it does not upload an image or start a generation.

4. Prompt and timing

Start from my authorized drawing of one ball-and-socket joint, a rigid upright stem and the original hand holding the upper stem. Lock the camera, table, socket base and cup rim. Keep the same spherical head retained in the same socket with its center at the original location. First tilt the stem a small amount toward the base’s right edge. Pause briefly so this rightward lean is readable. Then add a small tilt toward the base’s front edge, nearer the camera, while retaining some rightward lean. Show a continuous change of stem orientation in these two distinct stages rather than a single diagonal hinge swing. Rotate the exposed ball surface and its original mark coherently with the stem. Preserve the sphere shape, stem length and socket opening. Keep the ball beneath the retaining rim throughout, without lifting it out or moving the cup. Stop at the combined lean and hold. No stem bending, ball sliding, socket stretching, extra joint, cut, camera orbit or angle measurement.

Opening: locate the socket rim, visible ball surface, stem root and the fixed front and right base edges.
Middle: inspect the rightward tilt and short pause before the added movement toward the foreground.
Ending: compare the combined lean with the unchanged cup, retained spherical head and original stem length.

These beats are author suggestions, not exact model timing guarantees. Adapt their proportions to the clip length actually available.

5. Inspect the output

After inspecting your own output, record a time or frame, visible observation and pass, fail or inconclusive judgment for each condition. A convincing ending alone does not verify the preceding action.

The socket, base edges and camera remain fixed.
The original spherical head stays retained beneath the same rim.
The ball’s visible contour remains consistent with rotation about its original center.
A rightward tilt is readable before the separate forward-tilt stage.
The stem and marked ball surface turn together without the stem bending.
The final lean holds without a gap opening between the ball and socket.
If perspective or the hand hides the second direction, mark the two-stage articulation inconclusive.

6. Fix one failure

Only one diagonal movement appears: retain the short pause between the rightward and forward stages.
The ball lifts out: reduce both tilts and keep the lower sphere beneath the retaining rim.
The socket stretches to follow the stem: fix the rim outline and shorten the target movement.
The stem bends instead of articulating: keep it rigid and place orientation change at the sphere.
A camera orbit simulates the second direction: compare the fixed base edges and explicitly lock the viewpoint.

7. Ending and limits

Finish with the same rigid stem at a modest combined lean, its ball still retained at the original socket position and the cup unchanged.

Save your own generated result through the available result controls, together with the authorized input, exact prompt, settings and inspection notes.

No generated clip, joint test or kinematic measurement is supplied. Two visible directions can support the intended articulation, but cannot certify a joint’s freedom of motion, exact center, allowable angle or mechanical durability.

The desk-lamp task requests one joint tilt, and the box-lid task follows a fixed hinge axis. This task requires two distinct directional stages with the same sphere retained. One diagonal endpoint alone does not establish that difference.