How long do the tubes need to be?
Let us know what works!! Photos!
Thanks for writing! Two things will help:
- I'm only passing the clear fishing line through at most a 6" glass test tube, with vacuum tube guts in it. The idea is to drive a useless piece of metal, or propeller, or whatever super-glued to the end of the string from beneath via a servo or motor/gears). The only reason protection came to mind was that passing the line through a tube's sharp parts would not only be a poor guide, but also might rub against those metal parts.
It's just a doodad thing, along with LEDs, akin to this kind of engineering.
- Today I went on a hunt for some test parts to see what the kind of dimensions I'm looking for are. I snapped these:
...and a little closer on the tube (3/32" OD & 60lb line):
Now this is not clear tubing, but it is a good size. I also grabbed an assortment of brass tubing, figuring they might even look better with a tube than a clear tube... The idea is to hide the fact that there is a mechanism from beneath moving the gewgaw, as if the tubes themselves were somehow making it rotate...
The 60lb line can be routed through most anything, including clothing or something it may be mounted on, to get to the turning device (motor/gears or servo). I'm really futzing around now with the visible parts. Because tubes are used (fascinating and mysterious as they are even before adding LEDs in them to younger folks), bending & soldering brass is no biggie.
To round out the picture here (which I avoided at first, fearing the topic might be verboten), I'm just creating some wearable/table devices with tubes, wire, and pipes, that will move/react via the MCU to external stimuli, which can include proximity, sound (volume/direction), or even radio commands. RGB LEDs might pulse red when a noise like a person talking or something, and slowly pulse green after a few seconds of quiet. You know, to fool kids into thinking they are 'intelligent', or just interactive toys.
For example, I'm framing out a puppet in the shape of an obviously mechanical bird, and there just isn't enough room inside the thing for servos, motors and reduction gears plus the MCU, power, and sensors. My first guess at a solution? Run wires (thin enameled) and fishing line up the 'legs', with as much of the guts needed hidden. If worn, battery and such can be made to fit an inside pocket, or even outside one. If mounted, toss it on a box!
One art genre (of many I've discovered) that people are more-or-less familiar with that does this sort of thing is 'steampunk'. So, when I look at one of these (829b), I'm already thinking of how to bring it to "life":
I just got a ton of SMD LEDs, and I'm now trying to figure out how to power them as bright as they can go, but not burn out. Next up I need to figure out how LED drivers work, and what kind to grab that can take PWM and control a few dozen or so independently.
(you asked for pics!)