gentle touch activated sound?

I have a little toy that makes noise when you squeeze it that I want to give as a Christmas present, but tiny little hands have trouble doing the squeezing properly, so I want to do a little surgery on it so that the sound activates with just a gentle touch instead.  Such as if you flick it, pet it, pick it up... that sort of thing.  I know when I was little, we had a doll that was supposed to make noises when played with, but it was so sensitive that it would go off from just the blow of our AC. 

My problem is, I've no idea what parts I need to do this.  Can anybody help point me in the right direction?  And I only have about a three inches to work in, so it needs to be fairly small.

Thanks.


crapflinger7 years ago
do you have any idea what type of mechanism triggers the sound as it's made now?

could be as simple as modifying the existing switch to make it more sensitive
aliasjanedoe (author)  crapflinger7 years ago
No, I don't know.  I wanted to have some idea what I'm doing before slicing open the toy, since there's no zipper (which is stupid, because how are you supposed to change the battery when it dies?).  All I know is that you need to squeeze it.  It's a little five-inch plush toy, if that matters; I don't know if there's a common standard for these things.
this may be the perfect time to put a zipper in so that the battery can be changed then?

without knowing how it actuates now....anything advised by me (i'm not an electronics nut) is speculation

i know in a lot of the cheaper sound making dog toys (which would be my main area of focus as i don't have kids but i do have dogs and regularly modify/repair their toys) the sound box is usually a plastic box....often round (but that doesn't matter) and there's a simple (usually one...sometimes two) switch inside of the plastic case....squeezing the plastic case actually pushes the switch (sometimes it's as simple as a strip of metal on the inside of the case that makes contact with another piece of metal connected to the circuit)

i think this is a relatively common switching method in squish activated contraptions....in dog toys they make the sound box out of pretty sturdy plastic so it can survive a good chewing...which is why it's sometimes kind of hard to make the sound happen....if this is the kind of switch used in this particular toy you could simply add a few layers of alluminum foil over the strip of metal that's attached to the case...which would reduce the "actuation" range of the switch