Extend two nested pointer sections without losing their joins

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

1. Task and boundary

Hold the handle of a telescopic pointer still and draw out its two nested sections in sequence. The narrow section first emerges from the middle one; the middle section then emerges from the handle sleeve. End with a longer pointer whose three rigid parts remain visibly connected.

This original motion plan is untested. Use a deliberately simple two-stage pointer. Exclude product extension specifications, hidden locking mechanisms, flexible material stretching and more segments than the prepared input establishes.

2. Authorized first frame

Use a photograph or accurate drawing you own or have permission to use. Show a handle sleeve, a partly exposed middle tube and a partly exposed narrow tip, all sharing one axis. The original hands hold the handle and tip separately.

Choose a close side view with both collar boundaries visible and room along the extension direction. Distinguish the sections by diameter and small plain marks. The initial short exposures should make nesting order readable before any movement begins.

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 a two-stage telescopic pointer with the handle sleeve, middle tube and narrow tip each partly visible on one straight axis. Keep the camera and handle-holding hand fixed. The other original hand draws the narrow tip outward first while the middle tube initially stays still. Retain the narrow tip inside the middle collar with a visible join. Then draw the middle tube outward from the handle sleeve, carrying the already extended tip with it. Keep all sections rigid and coaxial, with the original diameter order unchanged. Stop before either section separates completely and hold the longer pointer. Preserve both collars and surface marks. No bending, rubber stretching, extra segment, detached tip, handle travel, camera tracking, locking claim or cut between stages.

Establish, first fifth: identify the three diameters and two original collar boundaries.
Extend, middle three fifths: inspect narrow-tip travel first, then middle-tube travel with the tip carried along.
Hold, final fifth: trace one straight connected pointer through both remaining overlaps.

5. Inspect the output

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

The narrow section moves relative to the middle section in the first stage.
The middle section moves relative to the handle in the second stage.
Each thinner section remains partly nested in its wider neighbor.
The sections retain their diameters rather than stretching into thin strings.
The final pointer has exactly the same three connected rigid parts.
If collars are hidden, mark nesting and overlap continuity inconclusive.

6. Fix one failure

Both stages move at once: separate their travel with a brief readable transition.
A tip detaches: shorten extension and preserve a visible collar join.
The metal stretches: keep segment marks fixed relative to their rigid surfaces.
An extra section appears: show and retain the two original collars only.
The handle drifts: anchor the holding hand and sleeve against a fixed background.

7. Ending and limits

Finish with a longer straight pointer, two exposed collar joins and all three original sections still connected.

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

No H3 output, travel measurement, lock test or hardware recommendation is supplied. Visible overlap is an inspection cue, not evidence of a hidden stop or a secure locking mechanism.

The threaded-cap task couples rotation with axial lift. This pointer uses ordered straight sliding of nested rigid sections and requires two preserved overlap boundaries without rotation.