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I recently rebuilt a headset for a head tracker mouse for a paraplegic chap.

This instructable contains a bit of information that might help anyone else trying to do the same.

The unit that this headset works with is the PRC Headmaster, Prentke HM-2P. Its a fairly old design but it is based around ultrasonic transducers and time of flight calculations.

Step 1: Print the Headset

3D printed using PET+ (tough and flexible).

STLs on Thingiverse or attached

<p>Are all three 16mm SQ40R ultrasonic transducers transmitters or receiver types?</p>
<p>Very good to support those who need this resource! Thanks !!!</p>
<p>Wow it looks really great, and it's such a good cause. Well done figuring out the complexities! Thanks for sharing!</p>

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