Key turner with lever handle

thingiverse

Key handles for people with wrist pain or fine motor problems that make it hard to grasp and turn keys. Three different versions: the oval and diamond shapes fit two common types of keys, and one requested by a friend who has a ridiculously oversized key for her classroom. There's a handle and a spacer, and you screw it together with the key sandwiched between the spacer and the handle. The two common keys use the same spacer but the comically large classroom key needed its own spacer. I used a M2.5 screw and nut. I recommend printing these on their side, with the flat L shape of the handle against the bed and the key oriented vertically. That will let you print with minimal (or no) supports. Use a relatively high infill percentage for durability since it will be taking torque on a regular basis. I've also included the fusion 360 files so you can modify it to suit your needs. Alas, Past Rowanon didn't use good design principles so it may be easier for you to start from scratch anyway. Modeled from scratch but inspired by dma678's design. That's the first key turner I've seen with the lever, which is a bulky but game changing addition. I wanted something that fit the keys a bit better and kept them from wiggling around in the holder.