This is a replacement knob/handle for a standard bathtub I made. Why? Because it was too hard for Emma to adjust the temperature by herself so I designed this replacement piece with a little more leverage so she can make minor adjustments to the water temp.
I designed it in Fusion360 and printed it with PETG to be a little more water resistant. As you can see from the picture below, it allows easier turning. Please disregard how awfully dirty the bathtub is.
