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Task template

Desk lamp tilt: move one head around its visible joint

Create one small downward tilt of a desk-lamp head around its visible neck joint. The original mechanical-style illustration is a planning source; it is not a tested H3 motion or a lamp engineering model.

Includes original practice inputs and a review checklist. This prompt has not been independently tested with the generation model.

Download the input image below and upload it manually in the generator; the button carries the prompt.

Original illustrated practice input
Original unlit lamp input with one visible round pivot and a stable base. It is an illustrated mechanism exercise, not a generated or measured product demonstration.

01Prepare the inputs

  1. Use a source where one neck pivot between the upright stem and shade is clearly visible. The supplied lamp has a simple single joint, avoiding an articulated multi-arm mechanism.
  2. Keep the whole base and a short cable segment visible so lifting or sliding can be detected.
  3. Request a small shade tilt that does not expose a detailed hidden bulb or internal hinge assembly.
  4. Keep the lamp unlit for the first attempt. A moving spotlight footprint can distract from a detached joint or changing shade shape.

02Prompt and procedure

Copyable prompt

Start from the uploaded unlit desk lamp. The base remains flat on the tabletop; the upright stem and visible cable stay still. Only the lamp head tilts gently downward once around the visible round neck joint. The pivot remains attached to the same top of the stem, and the shade moves as one rigid part without bending or sliding off the hinge. Keep the shade opening and rim shape coherent as its angle changes. Stop at a modest downward angle and hold. The lamp stays unlit, with fixed room lighting and a stationary camera. No arm extension, no base lift, no new joint or cable.
  1. Name the single moving assembly

    Treat the shade and its short connector as the head assembly. Name the stem, base and cable as fixed; do not describe the entire lamp as bowing.

  2. Locate the center of rotation

    Find the visible round joint before running. Its connection to the stem should remain in place while the shade rotates about it, rather than translating through the stem.

  3. Inspect the halfway pose

    Compare shade length, opening and connector at mid-tilt. A perspective change in the opening is reasonable; a stretching shade, doubled rim or new elbow is not.

  4. Hold before adding illumination

    Judge the unlit ending first. If the pivot passes, a later separate lighting study can be planned; this exercise ends with one connected head adjustment.

03Check the result

  • The base keeps continuous flat contact with the tabletop.
  • The stem and visible cable remain still.
  • There is one visible neck joint without an added hinge.
  • The head rotates about that joint rather than sliding off it.
  • The connector stays attached to the same shade and stem positions.
  • The shade remains one coherent shape with a continuous rim.
  • The head tilts downward once and holds without the lamp turning on.

04Troubleshoot and finish

The whole lamp bows or tips

Change only the role assignment to fix the stem and base; keep the small head tilt.

A new elbow appears

Change only the joint description to the existing single round neck pivot; remove articulated-arm wording.

The shade slides off the stem

Reduce only the tilt amount and recheck the connector at the halfway pose.

The light turns on and hides the joint

Change only the illumination instruction to unlit under fixed room light; keep the motion otherwise identical.

End with the base flat and the shade held at its new angle. Save a close view of the pivot before, during and after the tilt; an attractive beam does not substitute for a connected joint.

05Download the practice files