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Moooi Big Ben – clock parts

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Found on Marktplaats. The Big Ben from Moooi, designed by Marcel Wanders.

The Moooi Big Ben clock with the missing minute hand.
Detail on the minute hand attached to the clock mechanism.
The clock mechanism and hour hand removed from the clock itself
Two small metal parts fell out the CL100-12 clock mechanism when it was opened
One part seems to be a teeth of this gear
And the other part seems to be a teeth of this gear (attached to stepper motor)
The gear on the left was attached to the stepper motor and gear on the right was attached to the minute hand spindle/axle
Gear I specifications
Gear II specifications
The stepper motor itself seems to be ok. Every full minute it turns and when I select “Fast forward” on the controller it keeps running.
Overview of all parts from the clock mechanism and hour hand.
The part that connects the hour hand to the spindle of the clock mechanism. The slotted screw for clamping the part on the spindle is a bit worn and needs to be replaced. Can it be replaced with a Torx screw for better clamping?
This metal part is a bit damaged during disassembly. This one should be replaced .
Detail of the hour hand with clamping part.
All parts expect the hour hand connected to the clock mechanism.

Estimated size of the minute hand based on a picture of the Moooi Big Ben Clock

Minute hand tail length is about 278 mm long and 40 mm wide

Minute hand point length is about 642 mm long and 40 mm wide

Minute hand full length is about 920 mm long and 40 mm wide

No visible screws on the front of the minute hand

Weight of the hour hand: 1241 grams
Thickness of the point of the hour hand: 6.26mm
Thickness of the tail of the hour hand: 12.28mm
Perfectly balanced hour hand

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