Mindboards

It appears I have the honour of posting the first MOC on this forum...

I got my hands on a dPressure sensor from Dexter Industries some time ago and started thinking about how I could use it in a slightly less obvious way than for example datalogging or monitoring a Pneumetics circuit. Of course Pneumatics is the way to go so I started toying with the different elements and the sensor until I came up with this:



The red piston is and old type Pneumatics pump (only different from the old type single acting cylinders in that it has a return spring) which is directly connected to the positive pressure port of the sensor. Add three touch sensor and a bit of programming (in NXT-G) and you have an NXT trumpet.

The design of the Trumpet is very simple and I've made it modular:


More pictures here

You can watch a video of me trying to play the trumpet here

Now just need to learn to play it better

Cool project! There was a yellow/gold trumpet which didn't use a pressure sensor at the LEGO booth at the FLL World Championships in Atlanta last year (2009). I think Steve Hassenplug made it.

John Hansen

I'd love to see it. Are there any pictures of it?

I remembered that Joe Meno from BrickJournal (www.brickjournal.com) had uploaded FLL photos to Flickr so a bit of googling brought me to this image:

http://www.flickr.com/photos/brickjourn ... 067599014/

John Hansen

Thanks for the link - now I'm really intrigued

nice

There's also a video on You Tube of Steve playing it: http://www.youtube.com/watch?v=WCReZSLQIe8

mpscholz wrote:There's also a video on You Tube of Steve playing it:

This should read:

There's also a video on You Tube of Steve making noise with it:

Steve

Thanks for the link to the video - with explanations included.

I've also dug up a video by Damien Kee (around 55 seconds) with a less sophisticated mouthpiece.