Calliope, anybody?

[roboruler]

Originally Posted by ctt956

But having a lot of tanks on the robot could pose a safety hazard. Maybe you could do it with fans?

Explanation needed as to why a lot of tanks on a robot is dangerous/ unsafe.

Also fans will not work, because of the significant spool up and spool down time of the blades. A solenoid is off-on-off quickly a fan is not off-on-off quickly at all.

[ctt956]

Originally Posted by roboruler

Explanation needed as to why a lot of tanks on a robot is dangerous/ unsafe.

Also fans will not work, because of the significant spool up and spool down time of the blades. A solenoid is off-on-off quickly a fan is not off-on-off quickly at all.

https://www.chiefdelphi.com/forums/s...&postcount=113

[holazola]

How about making something like this Barrel Organ? https://www.youtube.com/watch?v=rWz_X4nEzKk

[Tsukunea]

Originally Posted by holazola

How about making something like this Barrel Organ? https://www.youtube.com/watch?v=rWz_X4nEzKk

I have a feeling that we may have to use some kind of player-piano paper like that should we be unable to program the calliope for the song.

[Ari423]

Originally Posted by roboruler

Also fans will not work, because of the significant spool up and spool down time of the blades. A solenoid is off-on-off quickly a fan is not off-on-off quickly at all.

No comment as to whether this would actually work, but if you want to avoid the problem of spin-up/spin-down time you could have a constantly spinning fan in a tube with the out-flow end covered so the air doesn't flow through the calliope. Then a small solenoid or something could open and close the cover to allow air through. Just an idea; still would be really complicated and a lot harder than a big set of speakers.

[Tsukunea]

I've found an old magazine from 1982 with instructions on building a mini-calliope. The air in it is produced by two hair dryers sans heating elements. It would seem that this would be a fairly easy route to go.

[Roger]

Neil Fraser's (bagpipe) chanter, with one motor quietly supplying air power via 3 bicycle pumps. (The website explains why 3 is ideal.) An air bag reservoir helps balance the air pressure.

Here is the obligatory music video, and here shows more of the air compressor.