Key Turner Handle

thingiverse

This is a device I created to assist my parents in accessing their home, which may also prove beneficial for seniors or individuals with limited mobility or dexterity in their hands or forearms. My parents utilize it by placing it near the front entrance. They insert the key into the lock as usual and then slide the tool over it, enabling them to turn the key. The handle is designed to be cranked, preventing accidental injury to their knuckles or fingers. The slot's mouth is angled for effortless alignment with the key. To ensure the tool fails before causing damage to the key, the neck and slot area are intentionally made weak. Unfortunately, versions 1 and 2 were too fragile and required frequent replacement. Version 3 has thus far proven durable and has not broken any keys. I suggest using standard settings such as 3 top and bottom layers, 3 perimeters, and a 40% fill rate. It is crucial to carefully weigh the risks involved before creating and utilizing this device.