Roll one wheel over a low step and follow its contact

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

1. Task and boundary

Guide a single wheel forward over one low step using its visible axle handle. Show the rim meeting the edge, the center rising, and the bottom of the rim reaching the upper surface. End with the wheel supported on top, preserving the same circular outline and axle.

This original visual plan is untested. Use a low step compared with the wheel radius and one controlled hand motion. Exclude obstacle-climbing ratings, exact traction, an unsupported jump and a full vehicle suspension sequence.

2. Authorized first frame

Prepare a photograph or accurate drawing you own or have permission to use. A wheel stands on a flat floor just before a low block. The original hand grips a short visible axle handle without covering the wheel center. Add one plain mark on the wheel face.

Use a near-side view that shows the floor, vertical step face and upper surface. Keep the block fixed and leave room beyond its edge. Avoid a step taller than the axle or a hand hiding the crucial rim-edge contact.

3. Use the generator

Open the current image-to-video generator in a mode accepting your authorized first frame. Paste the prompt; check settings and cost before submission. Nothing runs automatically.

4. Prompt and timing

Start from my authorized image of one marked wheel on the floor before a low fixed step, with the original hand on its visible axle handle. Lock the camera and step. Guide the same wheel slowly forward. Let the rim first meet the step edge, then maintain contact there while the wheel center rises above its starting height. Continue the motion until the lower rim reaches the upper surface and the wheel rolls a short distance onto it. Keep the circular outline, axle connection and face mark attached throughout. The wheel does not pass through the step or leap over it. The original hand follows the axle without pulling the block along. Stop with the wheel fully supported on top. No second wheel, flattened rim, collapsing step, camera tracking, hidden cut or numerical traction claim.

1. Establish, first fifth: identify initial floor contact, axle height and the low step edge.
2. Climb, middle three fifths: inspect edge contact while the center rises and the face mark turns.
3. Settle, final fifth: follow contact onto the upper plane and hold the supported wheel there.

5. Inspect the output

For each check, record a frame or time, observation and pass, fail or inconclusive judgment.

• The rim reaches the edge before the center makes its main rise.
• The step remains rigid and stationary during the transition.
• The center rises without the wheel shrinking to clear the obstacle.
• The face mark travels with the same rotating wheel.
• The final lower rim rests on the upper surface rather than hovering above it.
• If the edge is hidden throughout the climb, mark contact transfer inconclusive.

6. Fix one failure

• The wheel clips through the block: expose the contact edge and slow the center rise.
• The wheel jumps: request a continuous contact transition without an airborne phase.
• The block moves: retain fixed floor references beside its base.
• The wheel deforms: reduce the obstacle and preserve the rim diameter.
• The final wheel floats: show its lower contour meeting the upper plane.

7. Ending and limits

End with the original wheel entirely on the higher surface and the axle visibly above its starting floor height.

Save your result, authorized input, exact prompt, settings and inspection notes.

No H3 output, mechanical simulation or obstacle capability test is supplied. Suggested contact stages are inspection targets, not a guarantee that a chosen wheel can climb a measured step.

The flat rolling task retains one horizontal contact plane. This task transfers support across an edge and ends on a higher plane; changing wheel color would not add another mechanism.