Musical Photocopier - Singing Solenoids

This test fixture for a photocopier uses solenoids that are driven by a special song. Reminiscent of the Honda commercial for the early 80's. The easter egg is initiated through the Diagnostic interface, and the solenoids are driven over the CAN bus.

Category:

Science & Technology

Tags:

• musical
• solenoids
• symphonic
• singing
• photocopier

[mdu7078]

WOW very nice job

[dspdude]

Thx a lot. I have posted another of the pieces that this paper path played. There are a total of 4 pieces.

[superextramegagiga]

R u sure it's not your cell phone ?

[dspdude]

Cell phones don't have rattling washers that coincide with the music... It probably would have been more work for me to fake this then to actually write the code.

[derocov]

Fantstico! JS Bach.

What photocopier is this?

How is this egg triggered?

Thank you

[dspdude]

Unfortunately, this only made it into the paper path test fixture, and the production code was being written at another location.

[drvitaliy]

ha ha, I played this Bach melody on piano when I was in music school ;)

[FerralVideo]

I wouldn't mind going up to the copier at work, tapping at the touch pad, and this happening. Really cool, and well done.

[JS106351]

Sounds great! What kind of photocopier is that anyway?

[bbwannab]

Great! How do you get a chromatic scale from solenoids?

[dspdude]

When the front solenoid loses magnetization on the low notes, you can hear the washer vibrating as well.

The solenoid is operating at 25% duty cycle, and during the low notes, the solenoid is off for a period that is longer than the mechanical time constant of the spring. When the solenoid turns back on (for the next note), the solenoid is too far out, and there isn't enough force to pull it back in.

In other words, not faked... just cool :D

[sonicwave001]

FAKE!

[tsorett]

Bach Invention #13. Haha.

Easter eggs are awesome.