In this session, the dTicket mechanical design, created using cad.onshape.com, will be presented. All measurements are taken in mm.

Onshape

Turnstile

Below is the drawing of the turnstile:

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Focusing on the lock mechanism:

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In this second part of the lock, a sevo motor will also be coupled to the system, responsible for locking or releasing the ratchet and an IR sensor that will check when someone has passed through for the system to be locked again.

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Below is a 2D view of the size that each part of the ratchet should have, to use as a guide when cutting the MDF.

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Central Module

Below is the central module box, composed of two holes, one for system power supply and the other for cable output that will be connected to the turnstile:

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Registration Gadget Box

Below is the registration gadget box, used to hold a fingerprint sensor for identity registration on the identity API. Although designed, its construction will be optional as per the requirements.