This week, we do some more research about the relationship between wrists and torsional springs. The stiffness (K) value of stroke patients is higher than normal people because of the hardness of moving wrists around. There would be a difference in K value. At first, the standard for choosing torsional springs is matching the frequency of normal people. Then we would adjust torsional springs’ torque to match with the K value of stroke patients. This would give patients the most comfortable device.
By the way, we already finished the poster, get a quote from machine shop, and are ready to 3D-print in the next 1-2 weeks.