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Extending the soundscape of a hexaphonic guitar pickup
Joules:
I will refrain from commenting further on the bearing surfaces, at the beginning of this project I didn’t belive the optical pick ups would work.
:beer:
Well done on that.
sorveltaja:
I didn't believe either, when I started that pickup project. There I was wondering: "nobody have done this, as far as I know, so it shouldn't work". Then I needed a proof, of why it shouldn't work.
That's how the project started, by just doing against one's better judgement. At some point, the 'shouldn't' changed to 'could', and later on to 'would'.
Don't know, if that makes any sense, but it seems to be the pattern, that I've noticed, when looking back to the recent, experimental builds.
Joules:
Makes lots of sense, if you ever saw my 3D printed ball nut for the insane. It started out as theoretical, proved impossible, til I got a 0.3mm nozzle. Hence my suggestion for your small gear, good to see people push the boundaries and change our thinking and understanding on the way.
I know I said I wouldn't, but.... You might consider 3D printed press tooling. Cut up some steel beer cans to make discs with holes in. They could be pressed to form conical surfaces for your prints, allowing a metal surface for bearing contact, without machining. Press tooling makes good sense as you potentially have multiple parts to make, assuming you have an Arbor press or the likes of.
sorveltaja:
Measuring, how to fit the vocoder into the enclosure. Bit tight, so the slide pots between band pass filters and optoisolators can go, for now. If needed, they could be added afterwards:
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I've had a far-fetched idea of adding some kind of an audio analyser to the setup, having an led bar display for each channel, to show and hold the peaks of average values of say, 5 sec. audio samples, to get the 'profiles' of certain sample's frequencies.
In practice, I guess it would get too complicated, if only analog components were used. An alternative could be to use one of those cheapo pocket size oscilloscopes instead.
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Getting/testing smaller nozzle has been on my to-do list for a while, so we'll see, once the current projects give room for it.
What comes to conical metal(or other material) surfaces, there is a slight chance, that they might not be necessary, as I noticed today, when fiddling with different configurations. Also the tension spring might not be needed. It seems that only the centerpiece, or 'sun gear', that rotates the bearing balls(planets), needs to be made of metal, having smooth surface.
Printed outer ring turned out to be adequate for testing(although smoother/machined surface would be better). Once there is sufficient amount of tension between the parts, they rotate just like planetary gears do.
Almost too simple, so there must be some serious obstacles ahead. To find out, what they are, I'll start a separate thread about the subject soon.
WeldingRod:
Loving the cardboard aided design ;-)
That's how I did the guitar amp box with my son!
Sent from my SM-G892A using Tapatalk
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