01
Joint map and range of movement
List the moving interfaces and illustrate the desired poses. Identify where the sculpt, clothing or accessories limit movement. Review the joint arrangement against the intended appearance before committing to a part breakdown or tooling plan.
02
Fit and pose retention
Clarify how tight or loose a joint should feel, how the figure is supported and which accessories are interchangeable. Agree the sample checks and any repeated-movement evaluation required. A digital model or a printed prototype alone does not establish production joint performance.
03
Material and decoration interfaces
ITTAK produces HIPS, ABS and PVC components in-house. Joint material requirements are reviewed individually; do not assume all joint parts use the same plastic. Identify paint-free contact areas and places where surfaces may rub, so appearance and movement are considered together.
04
Assembly and complete-set approval
Review joint installation order, orientation, accessory fit and the packed pose. Approve a representative assembled figure and its included parts rather than evaluating loose components only. Define how joint, decoration and packaging changes trigger another approval.