Here's a reminder of where we were 11 years ago:
Here's where we are now:
In this latest incarnation the whole thing is self contained............
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Posted 12 May 2016 - 03:56 AM
Posted 13 August 2016 - 04:18 PM
OK, well here it is............................... I believe this to be the very first totally self contained MIDI concertina!!!!!!!!!!!!!
If anyone knows of an equivalent then I shall withdraw that statement if you show me video evidence!
It's a 36 key Anglo, traditional riveted action, BUT in place of the reeds is a MIDI controller/stereo GM expander/power amp/speakersx2.
It's battery powered (12 hours), has 'clever' bellows sensitivity and a hefty audio output from the full range enclosed speakers.
It also has a stereo 'line out', a mute for the internal amp and the controller/expander can run from a normal power supply with or without batteries.
This has taken MANY months to complete during my quieter periods BUT is possibly the most satisfying project that I've ever undertaken!
This instrument FEELS real because of the vibrations from the speakers, something I had not truly anticipated.
This particular instrument is now in the hands of it's very patient new owner/test pilot.............
Please watch the following Youtube vids:
Posted 16 August 2016 - 05:57 PM
Congratulations Roy. What you have done is amazing and exactly what I think a midi concertina should be, totally self contained. So where to from here? When does the mass production start? I guess that's not going to happen tomorrow! Seriously though, wouldn't it be wonderful if an inexpensive concertina, say less than US$100, was available for new and younger players. It seems you've converted an existing concertina or am I wrong? The hurdle with manufacturing a cheapie from scratch would I guess mostly be producing inexpensive bellows as Robert(Conzertino) has pointed out in another thread.
Ah to dream. One would just need a couple of hundred $K to set up a little factory in a country where labour is affordable and perhaps every household could have a concertina!
Posted 16 August 2016 - 06:33 PM
Posted 17 August 2016 - 04:33 AM
Thanks for those kind remarks.
Its actually not a retrofit, this is a new instrument. The ends are machined entirely from solid timber on my CNC machine!
The mechanism is almost identical to a traditional Jeffries.
There are many difficulties developing something like this, namely speaker enclosure/size/shape, battery type/size/location/lifetime, MIDI expander location, amplifier power/voltage/current consumption/efficiency, bellows pressure measurement, SOFTWARE, the list goes on.................
Bellows are relatively easy to make, even in the traditional way but even cheap ones cost £150+ in the UK.
When it comes to mass production, definitely possible BUT expensive to set up. If I wasn't already an electronics engineer AND a concertina maker/repairer then I would need to find people who were! The instrument in the videos is packed with separate electronic 'modules', some off the shelf and some (4) of my own design and construction. These would need to be re-designed and a TOTAL of 4 modules/pcb's should suffice.
Luckily I found a guy (in the videos) who was prepared to invest and who had the patience to wait while I tried various ideas.
My own opinion is that to flood the market with cheap, plastic, printed instruments would be akin to replacing the worlds pianos with xylophones. (I cant stand what Bose has done to traditional speakers)
Ok, you cant print wood.......................... or could you?
The danger is going too far and producing a toy.
Something in-between would be better.
How about CNC ends and printed mechanism.
Finally, have you seen how slow a 3D printer is?
Cheers for now
Edited by accordionmagic, 17 August 2016 - 09:04 AM.
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