Mechanical Resonance (Projects)

[gotoluc]

Got an idea...  Tuning forks.  Not expensive really
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR12.TRC2.A0.H0.Xtuning+fork.TRS0&_nkw=tuning+fork&_sacat=0

These are interesting but pricey.
http://www.ebay.com/itm/New-7-Energy-Bar-Chakra-Chimes-louder-sound-than-tuning-forks-7-wood-mallets-/162020874509?hash=item25b932590d:g:sQEAAOSw-zxWnecu


Mags

You're not the only one that got that idea!...  I ordered mine on the 13th and will have it on Monday: http://www.ebay.com/itm/131526761089

Unfortunately my time at the lab has ran out so it may be a while before I'm able to put the device together.

Luc

[Magluvin]

there was a story of a kid who made a model car that ran on on tuning fork , zero info on it.

Ive got tuning fork here , A440 = 80.5mm from centre of prongs to the tips
the higher freq forks are smaller and shorter

largest mass fork in ebay list is the C128 hz

a fork held near a guitar pick up coil generates electrical freq 440 hz signal , no different from a vibrating string in front of pick up

Thinking of putting magnets on it. It will lower the freq. I wonder how your pickup would sound with the mags on it?

Just thoughts as we go along. I have a  vented subwoofer design im going to do here too.  Will be a little slow at getting things up but they will be up.

Did some tests today by putting 3/4 x 1/2 n52 disks on the pen half way up the strip and driving that with the 8ohm coil I had from the change out. Have to go over that tomorrow. Was getting more V out of the top 4ohm coil than I was driving the 8ohm with. Going to try different placements and make a lower base for the driver coils.

With only one top coil driven, the opposing coil as a pickup, the trace for the pickup is much less and distorted, like not a plump sine but a malnourished one. So it shows a pretty bad eff level. A very decent eff level should gen almost as much as drive input. So gotta work on that. 

Still learning with this simple setup. There are any number of mods that can be done and adjustments therein. 

Mags

[massive]

You're not the only one that got that idea!...  I ordered mine on the 13th and will have it on Monday: http://www.ebay.com/itm/131526761089

C64 hz is even bigger , whole octave lower than 128 hz fork

64hz is pretty close to 60hz used for a motor !

interesting.......

[tinman]

Hey Brad

Got an idea...  Tuning forks.  Not expensive really
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR12.TRC2.A0.H0.Xtuning+fork.TRS0&_nkw=tuning+fork&_sacat=0

These are interesting but pricey.
http://www.ebay.com/itm/New-7-Energy-Bar-Chakra-Chimes-louder-sound-than-tuning-forks-7-wood-mallets-/162020874509?hash=item25b932590d:g:sQEAAOSw-zxWnecu




Thinking of ways to apply them here with the coils and mags.

https://www.youtube.com/watch?v=hiHOqMOJTH4




Mags

Maybe the travel will not be enough?
Maybe a magnet on a wine glass lol
Sorry,couldnt resist that one.


Brad

[AlienGrey]

Maybe the travel will not be enough?
Maybe a magnet on a wine glass lol
Sorry,couldnt resist that one.


Brad

Some frequencies are far more important than others, but here, what happens if we use a half frequency to drive the one this guy is using or even double  ?

ag