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Adjustable Guide Dog Harness


TOM Makeathon




Anna would like to create an adjustable handle for her guide dog harness so that she can easily alter its length. Changes in the harness tension impact the feedback Anna’s dog receives while guiding her through the environment. When Anna wears heels or platforms, the increased tension in the fixed-length harness changes her dog’s movement and creates a safety risk.


The team from the 2017 Makeathon developed a proof-of-concept app which connects Anna's phone to a beacon in her guide dog’s harness. This provides feedback about the height distance between her phone and the dog's back.   

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Safety Information

To download a digital product file containing open source instructions on how to build the design solution, read and agree to the terms and conditions below.

All digital product files on this page are provided as conceptual designs and were developed by volunteers through a TOM: Melbourne event or program.
The design file is provided in the interest of sharing ideas and promoting collaboration. The design as described in the document(s) has not been tested or assessed for safety. Please do not attempt to use any device built using these instructions without first seeking appropriate professional advice on the safety and suitability of the device for your personal situation. 
TOM: Melbourne are unable to advise on the suitability of any design or device for your personal situation, however if you have general questions relating to the instructions or documentation, please contact us via our  email:


There is no digital product file available for download at this time. If you would like more information or believe this is an error, please email us at

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