Summary

This is a stethoscope that is intended for listening to a foetal heartbeat in the womb. It is loosely base on a wooden model owned by my wife's aunt, as you can see in more detail here: http://things.hands.com//thing/foetoscope

Instructions

Wow! Thingiverse are tiresome at times -- despite the editor saying this is in markdown, that gets stripped before one sees it here, so I'm going to have to make a mess, sorry.

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=-=-=-=-=-= LICENCE & DERIVED WORKS =-=-=-=-=-=

This work is released under the "GPL v3 or later". Thingiverse are pretty useless when it comes to licensing, and will generally encourage one to choose CC-BY as the license for a derivative of this, despite that being a license violation.
Choosing a GPL-incompatible license in this way is at the very least impolite, and also is generally accepted to render the resulting work undistributable, so please use "GPL v3 or later" as your license, or alternatively choose someone else's design as your starting point.
Thingiverse don't distinguish between GPL2, GPL2+, GPL3, and GPL3+, but you can at least tag the design as GPL, which is a start I suppose ... it's just a shame that they don't guide the creators of derivatives towards the same choice, as they clearly should.
One extra point is that strictly speaking the "source" for this design is the .scad file, so the GPL would normally require you to modify that, but it is clear that some people prefer to modify the .sdl directly instead, so I'm not going to try to insist that only modifications of the scad are allowed.
If you modify the .sdl, it would be nice if you at least described how you did it, so others get to learn from you. If the tools you used produce anything that one might consider as source for the final .sdl, please publish them as part of your design.

If having read that, you're thinking "what's all the fuss about?" you
could have a look at: https://www.gnu.org/philosophy/pragmatic.html for
an impression of where I'm coming from, and/or check out
https://debian.org/ for other things I help build.

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Instructions start here:

Make sure that you have support material for the raised section of the ear-end (in SFACT/Skeinforge you need Support Material Choice: Everywhere)

Print this out
Find a heavily pregnant, friendly woman -- or if you're pregnant, then just find someone who wants to listen to your bump.
Apply the 'horn' end to the bump, and an ear to the flat end.
Listen -- you're after something that's going at at least 120 beats a minute. Lower frequency, more whooshing noises are the mother's blood-flow.

Obviously, this is not an alternative to good medical advice -- don't use this as a tool to decide whether you need to consult a doctor.

Pinard Horn (Foetoscope)

Pinard Horn (Foetoscope)

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