1:6 conversion of linear movement? specific example provided

1:6 conversion of linear movement? specific example provided

I have a 10mm wide button that can be pressed up to 0.5mm. I want to convert the movement to a 3mm movement under the button.

I believe this can be done by an airtight system where the pressure will do most of the work, like in the below illustration:

https://preview.redd.it/idlzmhpljxx41.png?width=320&format=png&auto=webp&s=0187fa9884cd47602bd1aa261a98052097a1ce20

The idea is the volume of the gas or liquid inside the airtight container is moved more by button 1 than button 2 needs, so "button" 2 will in result move more than button 1 has been moved.

The idea is to further have a spring to push button2 back after button 1 is released.

I think this is simuilar to how a syringe works except the liquid/gas is not allowed to escape and instead moves a tube which is narrower than the syringe barrel and plunger.

1) Is this idea correct?

2) Are there off the shelf components that do this? What are they called?

3) If this won't work and/or there are alternative ways to do 1:6 linear movement conversion in a small space let me know.

Thanks.

submitted by /u/yoyof68248
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