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. 2023 Aug 9;13(16):2566. doi: 10.3390/ani13162566

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Complete 3D-printed horse head. (a) Back left of 3D-printed horse head displaying the aiming channels extending from the external aiming landmarks to the component channel for the laser sensors positioned to simulate the medulla or pons, LED lights, wiring, and battery pack space and neodymium magnets for assembly. (b) Back right of 3D-printed horse head displaying aiming channels fitted with laser sensors, wiring from sensors to LED lights and battery pack, and neodymium magnets for assembly in place, with 9 V battery in place. (c) Muzzle of 3D-printed horse head with neodymium magnets for assembly. (d) Assembled 3D-printed horse head with LED eyes lit.