Molten Motion Meter: Visualising voltages and seeing signals
3,3 / 5,0 | 
Molten Motion Meter · Source: Robin Vincent
Molten Motion Meter · Source: Robin Vincent
Molten Motion Meter · Source: Befaco
A stunning collaboration between YouTuber Molten Modular and module-maker Befaco, the Molten Motion Meter provides audio VU metering and CV visualisation while mixing, offsetting and attenuverting.
Molten Motion Meter
The genius behind the Molten Motion Meter is one Robin Vincent who, oh, that’s me! Yes, this is my first foray into designing an actual Eurorack module. It came about through my desire to better understand what modulation was doing in my rack.
In a patch, modulation can often be difficult to “see” so I wanted a module that would visually represent the voltages running through my system. If I could meter the voltage going into the filter cutoff, then I could make better decisions and have an enhanced sense of what was going on. It’s something that software does really well and I wanted a bit of that in my hardware.
I took my idea to Befaco, who I knew had collaborated with other modular artists. After many discussions and the passing of some outrageous feature sets, we settled on something that I think is wonderfully simple, useful and beautiful to look at.
Molten Motion Meter · Source: Befaco
So what does it do?
Firstly, the Molten Motion Meter is a 3-channel CV and audio visualiser. Each channel can be set to audio, CV or inverted CV and display the signal level in a ring of rather gorgeous LEDs. The knob then acts as an attenuator. Positive CV is shown in purple, negative CV in orange and audio in green, yellow and red. So you can visualise, you can attenuate, invert and turn stuff down.
Secondly, it can act as a mixer of signals. If the outputs of 1 or 2 are not patched, then they’ll be summed and visualised at channel 3. So, you can mix 3 audio channels or a couple of CV modulators, combine an LFO with an Envelope and use the third channel as an offset. That’s the third feature in that the channels, when unpatched, produce a static voltage of up to 10v.
So, to summarise, it visualises audio and CV, inverts, mixes and offsets while generating voltage and looking fabulous in your rack.
Molten Motion Meter · Source: Robin Vincent
Availability
The Molten Motion Meter is available now as a fully assembled module for €125 or €95 ex VAT for the excellent DIY kit. I’ve produced a full build guide that takes you through every step, and I’ll be doing a live stream build-along in a couple of weeks if you’d like to build the module with me.
I sincerely hope you find this module useful, and I look forward to seeing it out in the wild.
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One response to “Molten Motion Meter: Visualising voltages and seeing signals”
Design looks very cool