I have noticed this in all the Cherry switches I have tried. I don't know how to quantify this, though. My simple mind would say that the "heavier" the spring, the more it would push back against your finger. My Cherry browns, however, feel more springy than than my ALPS 'boards which are heavier. I wonder if the tactile leaves in the ALPS springs might be causing some of the difference. I think ripster said something about ALPS feeling springier after removing the leaves from some of his ALPS switches.
Thats correct, the spring with higher spring constant will feel heavier, and create more force for same displacement.
Can anyone compare the springing back of keys on cherry brown and cherry black back to back ? My guess is that the time taken for start of rebound (due to hysteresis) is playing a role here.
If you remember the force-displacement diagram for cherry switch, there are two lines - the higher one for compression, while the lower one for rebound. When one lifts off the force from the partially compressed switch, the board would follow the rebound curve starting from the same displacement. The vertical distance between the two curves at any point is representative of the friction loss in the switch at that displacement. (Almost identical friction happens in both directions, so the loss should be half of the vertical gap)
Judging purely by the distance between two lines on force-displacement graph, black switches should have the least hysteresis. However, the force goes on reducing as a black switch stem travels towards the resting position. In Blue and Brown cherry switches, the force values are much higher between the actuation point and the resting position, compared to the black switches. This could explain why brown switch feels snappier.
What do you think ?
