Made this device for a customer, who was nice enough to let me publish the process on my channel. This kind of capacitor was used for radio tuning at one point, but is mostly a specialty item now - hopefully someone will find it useful, and I'm quite pleased with how the video itself turned out. Let me know what you think!
one of the first useful things i have every seen produced from a 3d printer. I see the stupid statues and wonder what a waste of technology/ But this variable air capacitor, now that is something of value
Glad you enjoyed! I use mine to produce useful parts all the time, and would invite you to browse around on this playlist: ruclips.net/p/PLUSVaS5vtdgTf8uPJvNvHMtf4kTQUcNb- :-)
Actually, that's all a capacitor really is. Just a number of metal plates separated by a dielectric (insulator) and in some cases an electrolyte solution. Pretty neat, huh?
Awesome! I remember finding something like this attached to a knob inside a radio or something that I took apart when I was a kid. I'm almost positive it was connected to the knob that tuned in the frequency, but it has been 30 years, so my memory is probably quite fuzzy!
Thanks! Yeah, that sounds about right, given what these were used for. I understand they're still used in amateur radio, but I have very little knowledge of that pursuit.
That's right, that is okay, more than okay. A typical electrolytic capacitor has a tolerance of 20%. So it's likely it would be acceptable for that capacitor to measure anywhere between 37.6uF and 56.4uF.
This spacers don't need to be insulators, as long as they don't touch the lower washers. And the upper washers would even make better contact with one another if it was just metall spacers.
Nice work Jeremy! This is a neat way to show the factors that effect capacitor performance.
Thanks! Seems like it could be a good science demo or something.
Made this device for a customer, who was nice enough to let me publish the process on my channel. This kind of capacitor was used for radio tuning at one point, but is mostly a specialty item now - hopefully someone will find it useful, and I'm quite pleased with how the video itself turned out. Let me know what you think!
one of the first useful things i have every seen produced from a 3d printer. I see the stupid statues and wonder what a waste of technology/ But this variable air capacitor, now that is something of value
Glad you enjoyed! I use mine to produce useful parts all the time, and would invite you to browse around on this playlist: ruclips.net/p/PLUSVaS5vtdgTf8uPJvNvHMtf4kTQUcNb- :-)
That's really neat. Didn't know you could do something like that with just metal plates.
Thanks! Yeah, it's not a ton of capacitance, but you can imagine how this would add up eventually.
Actually, that's all a capacitor really is. Just a number of metal plates separated by a dielectric (insulator) and in some cases an electrolyte solution. Pretty neat, huh?
Awesome! I remember finding something like this attached to a knob inside a radio or something that I took apart when I was a kid. I'm almost positive it was connected to the knob that tuned in the frequency, but it has been 30 years, so my memory is probably quite fuzzy!
Thanks! Yeah, that sounds about right, given what these were used for. I understand they're still used in amateur radio, but I have very little knowledge of that pursuit.
You remember correct. They are used as tuning capacitors in almost all portable am recievers along with a ferrite loop antenna
A capacitor meter. Fancy!
I know-I've definitely hit the big time, haha.
I would enjoy seeing a home made capacitor in the micro farad or even millifarad range- that would be cool!
Certainly would be. Guessing I'd have to use a different technique (or many washers)!
beautiful!!!
Thanks!
That's right, that is okay, more than okay. A typical electrolytic capacitor has a tolerance of 20%. So it's likely it would be acceptable for that capacitor to measure anywhere between 37.6uF and 56.4uF.
Saludos, las láminas deben ser de aluminio? O sirven otros materiales latón por ejemplo
Creo que aluminio es bien, pero no seguro.
Cool Idea : Jeremy :
Thanks!
This spacers don't need to be insulators, as long as they don't touch the lower washers. And the upper washers would even make better contact with one another if it was just metall spacers.
Thank am going to make one
NP, and very cool. There are definitely some improvements that could be made, but it was a fun experiment.
Nice idea. How do you sync the frames in the timelapse with the bed position?
Thanks! It's an extension for OctoPrint called OctoLapse.