Coaxial Pen Attachment with Perforated Capsule

REBUILD THE MODEL FROM SCRATCH. IGNORE THE PREVIOUS GEOMETRY. Create ONE vertical coaxial pen attachment matching this structure: - Main body: hollow flexible cylinder, OUTER DIAMETER 15 mm, HEIGHT 30 mm, WALL THICKNESS 0.60 mm. - The main body is CLOSED at the TOP by a rounded hemispherical dome. - The dome is integrated with the cylinder, NOT a separate part. - The dome has the same outer diameter of 15 mm. - The top of the dome is the highest point of the flexible capsule. - At the CENTER of the dome/top, create a rigid cylindrical protrusion: HEIGHT 10 mm. It must be physically connected to the capsule and coaxial with it. It must NOT float above the capsule. - At the BOTTOM of the capsule, create a rigid cylindrical mounting base connected directly to the capsule. - The mounting base must contain a CENTRAL HOLE for the pen. - The pen hole and the 15 mm capsule must share exactly the same axis. - Add small circular THROUGH-HOLES on the cylindrical flexible wall only. - Arrange them in regular vertical rows. - Do NOT perforate the dome. - Do NOT perforate the rigid base. IMPORTANT: The final result must be ONE assembled coaxial object, not floating cylinders, not disconnected rings, and not separate objects. Do not add unnecessary parts. Do not change the dimensions: Ø15 mm / 30 mm / 10 mm / 0.60 mm.

Parameters

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