After drilling the holes, poke the potentiometers thru the holes, and fasten
with the included washer and nut. Do the same for the toggle switches and
audio output jack. You’ll have to drill a separate hole for the audio jack; it’s not
shown on the template, that way you can put it on the side of the case if you
like.
____ Assembling the Knobs
The final step of assembly is to install the knobs onto the potentiometer
shafts. Turn all of the shafts fully counter-clockwise, and then push on each
knob so that the pointer on the knob aligns roughly to the 7 o’clock position.
That’s it! The SDIY MDRONE is ready to use.
Operating the SDIY MDRONE
Using the SDIY MDRONE is easy and fun. Each of the three oscillators can be
turned on or o
ff
, using the Osc On/O
ff
toggle switches. The pitch of each
oscillator can be controlled with the Osc1 thru Osc3 knobs.
The Filter Width and Filter Frequency knobs can be used to alter the
harmonic content (timbre) of the drone.
Turning the Grit switch on and o
ff
(if you’ve implemented this feature)
selects between mostly clean audio and rather dirty audio. Note that when the
Grit switch is in the “on” position, the signal is clean. You may wish to rotate
the switch so that it matches up with how you want the Grit label to indicate.
The volume knob controls the output signal level. Note that the output can
go somewhat above normal line level; make sure the device you are plugging it
into can handle that signal level before turning the volume up all the way.
Appendix - More Circuit Bending Ideas
The SDIY MDRONE is ripe for circuit bending. In addition to the ideas listed
here, please join the Evaton Technologies User Forum, and follow the SDIY
MDRONE thread. More circuit bending ideas will be posted there, and you can
also post up your own experiments, too, so others can try hacking the circuit
the way you have!
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Pittsburgh, PA 15220-2718
http://www.evatontechnologies.com
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