Feedback about: MMC60 Round Flexure Switch – 60 mm


More user feedback:

“The Makers Making Change [MMC60] Button, shown in Figure 4, is approximately 4 cm high and
requires less force to activate than a traditional Jelly Bean or Buddy Button switch. A Big Buddy Button
requires approximately 5 oz of force and about 2 mm of downward movement to activate, standing at
1.5 cm high. A Jellybean Switch requires approximately 3.5 oz of force and about 2 mm of downward
movement to activate, standing at 2 cm high. It is advantageous that the [MMC60] switch
requires less force and is bigger than these other switch options, as it could be activated by individuals
with less strength and control of their movements. The switch is easily mounted via Velcro, however its
height may limit positioning on flat surface for individuals with smaller hands. As shown in Figure 4, the
hand is raised off the table. Making shorter versions of this switch available as options would solve this.


The surface is nicely smoothed and feels pleasing to the touch. The top blue disc may benefit from
adding a more gradual curve to the edge in order to limit pressure on the user’s hand (or other access
site) though this is not necessarily an essential change to make.

The switch provides nice auditory and tactile feedback. When pressing down on the switch, a “click”
sound can be heard and pressure can be felt when the button pushes down. This feedback occurs
regardless of the angle of activation provided.

As shown in Figure 5, activation of the [MMC60] on the edge, rather than centrally presents a
potential concern for durability. There is 4 mm of distance between switch’s blue top surface and the
bottom’s black mount. If an excessive amount of force is applied over multiple trials, this could
eventually wear down the switch’s central attachment.