Handheld electric massagers
Two housings around a battery, PCB, charging port and moving head.
02Approach
Internal parts set the envelope: the grip was sized around the battery and the head block around the mechanism. The forked attachment with rounded tips mounts on a separate metal carriage, and screws close the shell so it opens without breaking clips.
03Result
Housing and mechanism models for both devices, with the battery, board and charging port placed, the heads adjustable and the shell openable for service.