Sun 22 Mar, 2009 10:38 pm
I'm designing a flip-down door on a high end video/audio system and someone told me I needed this rotary damper or gear damper to slow the opening and closing of the door. I looked at the cassete tape decks, DVD players, CD-ROM and notice gears are making this happen.
My knowledge of gears can fit into a thimble. I have no idea how to set the gear ratio, what number of gear teeth I need, if the mating rotary gear has 11 teeth, what diameter size gear I need, etc.
Anyone here an engineer or studying to be one? Can you guys give me some useful pointers?
Two gears of different diameters that have meshing teeth e.g. spur gears can allow one to change the rpm by meshing the input gear with an output gear of a different diameter. Input gear with 12 teeth and and output gear of 24 teeth would result in slowing the rpm by half.