[sdiy] Mac users - excellent keyboard similar to IBM
Olav Martin Kvern
okvern at ix.netcom.com
Thu Jun 3 01:38:38 CEST 2021
cheater cheater wrote: "They both vibrate the strings
electromechanically. A solenoid would power them by literally knocking
the guitar, using a purely mechanical impulse, and it wouldn't be a
sustained excitation, it would be a one-time, though powerful, impulse."
I think you're getting hung up on the definition of "solenoid." I think
that Brian's using it in a purely electromagnetic sense, not an
electromechanical sense. These (on the Roland synth guitar and in the
eBow--or the Sustainiac) are coils that drive the strings via magnetism,
not mechanical impact.
I built a guitar robot that used "solenoid" in both senses of the
term--solenoids with moving cores to whack the strings; solenoids with
static cores to drive the strings. Great fun. I'll have to put it back
Here's an interesting instrument from Godfried-Willem Raes and the Logos
Foundation--they use electromagnets to drive the strings and (moving
core) solenoids to damp them (note--there's nudity in some Logos pages):
Raes commented, somewhere, about slow actuation being a problem of
magnetic string drivers, but I cannot find that text today.
See also this fantastic project from list member Ulfur Hansson:
More information about the Synth-diy