I swear at some point I'm going to have time to actually put some of these ideas into practice.
Anyway, some five years ago I've meddled some with Arduino powered drum triggering. The idea was to build my own electronic drum kit. I had come pretty far before running out of building time and attention.
I had a working concept with piezo triggers feeding into a multiplexed Arduino spitting out MIDI commands to a DAW on my laptop. Works like a charm with no perceivable latency. So at least under 10 ms, but probably shorter.
But nowadays, I'm less keen on the concept of dedicated electronic drums and leaning more towards low volume, real acoustics. Also, conforming to a small form factor so I can pick it up and go play somewhere else.
So, things to tackle are:
- Butcher old shells into shallow shells without reso heads.
For a snare mat I'll try the Pearl Traveler solution of cutting one end off the snare mat and pressing that side to the underside of the head.
- Make low volume heads.
There's a slowly expanding gamut of commercial options out there. From ultra silent, ultra bouncy, no tone single ply mesh heads to slightly louder, slightly less bouncy, slightly more tone double ply mesh heads to again slightly louder slightly less bouncy, slightly more tone mesh heads with stuff stuck to it. A milar center dot for more attack and pieces of foam to absorb the bounce.
So there is an inverse relation here between quietness (and bounciness) and tone. The available low volume options are in my opinion a little to much on the quiet side still. I'm aiming for a kit that is not too loud for unplugged situations but certainly not quieter so as not to sacrifice too much tone.
I'll be experimenting with different combinations and sizes of mesh plies, milar plies, center dots and foam.
- Make low volume cymbals.
I've seen some attempts on YouTube with old cymbals to get an idea of the feasibility. Looks doable. There is some hesitation in respect to durability of the alloys used in normal cymbals when you poke 'em full of holes. And reviewers of commercially available options all note that they are a good deal thicker then the normal cymbals. Manufacturers of commercially available options say they use different alloys all together.
So I'm inclined to try with normal cymbals, but to take like an inch and a half off the circumference so they will be thicker proportionally to their diameter.
- Make "suitcase"
The suitcase will get a piece of 14" floor tom integrated as a kick drum. I've looked at some actual second hand suitcases. But decided to make my own so it will end up with exactly the right dimensions to pack everything in nice and tight.