Only two basic soldering tools are required to complete this kit: a soldering iron and a pair of flush cutters. Check out the detailed assembly guide here.
The kit is made entirely of interlocking PCBs and unlike most kits the only wires that have to be soldered are the ones going to the piezo disc.
Buy it Made
Don’t want to make the kit? No problem! The Metal Synth is also available to buy completely assembled and ready to go.
How it Works
The synth is triggered by a piezo disc which is sensitive to how hard you tap the top panel giving subtle differences in the two stage envelope.
The noise is generated digitally by a pre-programmed microcontroller. The filter at the heart of the unit can be controlled and modified by the Sweep, lowpass/bandpass, Resonance, Cutoff and Cutoff CV.
2x Trigger Options
Trigger by activating the piezo under the touchpad (Metal Logo) or by plugging in an external trigger.
SO WHAT DO THESE TWIDDLY KNOBS DO?
SENS: Sets the sensitivity of the trigger/touchpad.
DECAY1: Sets the decay time of the louder initial hit (body).
DECAY2: Sets the lasting decay time (tail).
CUTOFF: Sets the filter’s cutoff frequency and the bias for control voltages to be summed with.
SWEEP: Controls the amount of sweep applied to the cutoff frequency.
RES: Sets the filter’s resonance. The filter will oscillate at max!
AUX IN: A mono input of your choosing.
TRIGGER, CUTOFF CV, AUX IN and OUTPUT connectors are all 3.5mm mono.
SOUND OUTPUT: The Metal Synth is capable of generating a wide range of frequencies and as such will work best with a wide range speaker/amplifier rather than a typical guitar/bass amp.
check out the video!
Directed and produced by midierror
Flow DIagram Goodness!
whats included in your kit
|3.5mm Mono Socket||3|
|3.5mm Mono Socket||1|
|A104 Log Potentiometer||2|
|B504 Linear Potentiometer||2|
|B102 Linear Potentiometer||1|
|B103 Linear Potentiometer||1|
|50k Trim potentiometer||2|
|Right Angle SPST Slide Switch||2|
|Horizontal DPDT Slide Switch||3|
|1n0 Box Capacitor||1|
|3n3 Box Capacitor||3|
|47n Box Capacitor||1|
|100n Ceramic Capacitor||3|
|4k7 Resistor Network||1|
|100k Resistor Network||1|
|100k 0.6W 1% Resistor||6|
|33k 0.6W 1% Resistor||1|
|47k 0.6W 1% Resistor||2|
|22k 0.6W 1% Resistor||13|
|10k 0.6W 1% Resistor||13|
|499k 0.6W 1% Resistor||1|
|560R 0.6W 1% Resistor||1|
|4M7 0.6W 1% Resistor||1|
|1k0 0.6W 1% Resistor||6|
|3k3 0.6W 1% Resistor||1|
|1M0 0.6W 1% Resistor||3|
|2k2 0.6W 1% Resistor||3|
|3mm Blue LED||2|
|Signal Diode 1N4148||3|
|Schottky diode IN5819||1|
|Op Amp 2904 IC||1|
|Op Amp LM324N||1|
|Op Amp NJM4250D||2|
|78L05 5V Regulator||1|
|2N3904 NPN Transistor||3|
|1u Electrolytic Capacitor||1|
|4u7 Electrolytic Capacitor||1|
|10u Electrolytic Capacitor||1|
|100u Electrolytic Capacitor||5|
|(Battery is NOT Included)||–|