Smartphone Vibration Sensor Mount for 20 x 20 Marker Rail!

by CallJoe, published

Smartphone Vibration Sensor Mount for 20 x 20 Marker Rail! by CallJoe Dec 7, 2017


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So I wanted to study the vibration signatures of my 3D printers and it hit me that the easiest (also quickest) was to use an older iPhone 4s which I was using for timelapse videos but how to mount it? Well I found a bike mount on Thinigiverse which was written in Open-SCAD and (here is the orignal: https://www.thingiverse.com/thing:426872) was able to modify it from a round tube to a square one for the 20 x 20 maker-rail on many of my printers. Then I needed an app and while I am an Apple Dev, by the time wrote and debuged something it was easier to just go the iOS App Store and get a pre-made App and found this gem (http://diy3dtech.com/iphone-vibration-sensor-app/ ) which fit the bill and it was off to the races and has been a quite an interesting project!

Note: I have added an STL for the iPhone 5s as well as the mod-ed Open-SCAD code to create your own.

Sample Excel can be downloaded here: http://diy3dtech.com/vibration-study/ so you can see what the data stream looks like as well as the some of the potential formatting of the data.

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Major Favor: if you make one of these please post the Make and share it with the community :-) .

Also, please follow us on Thingiverse and give this a like if this came in handy and for more information on this project, please visit us at http://www.DIY3DTech.com as well as subscribe to our YouTube Channel at http://YouTube.DIY3DTech.com along with a visit to our drone site and YouTube channel at http://video-drone.DIY3DTech.com

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P.S. Also works great for taking Time-lapses of the bed too!

I tried to use this too but the mass of the smartphone plus the somewhat flexible coupling is likely to affect dramatically the results. The sensor should be as light as possible and well fixed to give accurate results.
Now to get a coarse idea, ok though.

Thanks for sharing! With this mount it worked "okay", one could argue (as I did with myself) adding a mass to the top might introduce some resonance into the measurement. However if you watch he video coming out on Friday (today as I write this) on my YT channel this really wasn't that problematic. As while I would agree with you smaller is better (felt funny to type that), the idea is also to come up with something (1) that most people can achieve and (2) the tolerances aren't really that close for it to make a huge difference :-)