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geekhack Community => Keyboards => Topic started by: lolkey on Sun, 22 December 2013, 10:30:43

Title: return filco?
Post by: lolkey on Sun, 22 December 2013, 10:30:43
just got a new filco and it's making this weird noise on the majority of the keys when the key is released -

(max your volume in sound cloud, windows, browser -- or you won't hear it, my microphone sucks and has a very low receiving volume. if you have headphones or earbuds use them, as it's easier to hear with with them)
https://soundcloud.com/lolkeys/filco-2-tkl-brw

it's driving me nuts and you can really hear it when you start typing really fast. what should i do, return it?
Title: Re: return filco?
Post by: Photoelectric on Sun, 22 December 2013, 10:42:30
Actually can't really hear it, but if you're talking about a sound of recoil/metallic resonance (known as "ping" here), it's very easy to fix.  Place some dampening material under the PCB.  A popular choice is some cheap rubber-foam drawer liner, like this:

(http://www.rabbitlaserusa.com/images/Supplies/NonSlipDrawerLiner2.jpg)

It comes in many colors and also thin varieties that you could add a double layer of (single layer for the one shown above).  Cut to size of the bottom tray, cut some areas out that will go around plastic protrusions where the USB cord channel is, etc.  Place into the bottom tray, reassemble the keyboard.  Yes, it will void your warranty, but it will make your keyboard overall noticeably quieter--this goes for all other brands of keyboards of this design.

Example in a full-sized Filco:

(http://i.imgur.com/CUGoanW.jpg)
Title: Re: return filco?
Post by: lolkey on Sun, 22 December 2013, 11:58:56
Wouldn't putting a thick cloth underneath the keyboard simulate the same thing? Is that rubber layer a know fix  for "ping"? And yes, it's hard to hear it on the sound file. I can't hear it through regular speakers, I have to useheadphones to hear it, my mic is ****.
Title: Re: return filco?
Post by: Puddsy on Sun, 22 December 2013, 12:01:41
There are no known fixes for ping simpler than this one.
Title: Re: return filco?
Post by: tp4tissue on Sun, 22 December 2013, 12:08:02
Ping is generally heard by n0vices.

Because they're still in the phase where the totally give a h00t..


Once you start to actually USE the keyboard... all the ping melts away... because you're NOT listening for it... you're playing a game, or writing an email, or on GH planning your next purchase.
Title: Re: return filco?
Post by: Photoelectric on Sun, 22 December 2013, 12:09:20
No, it wouldn't.  The ping is audible because there's a cavity under the PCB filled with air where sound waves can travel and reverberate.  By filling the cavity with something porous that inhibits free sound wave propagation dampens resonant noise within the keyboard.  You can put something under your keyboard too which will help further, but not as much as putting something under the PCB.  A mat on your desk would mostly just help with punching your keycaps reverberating through your desk.
Title: Re: return filco?
Post by: Wildcard on Sun, 22 December 2013, 12:10:18
The other option is to remove and reseat the springs. But since the Filco is plate mounted and the plate does not have cutouts there is no easy way to open the switch tops without unsoldering the switches. The rubber mat will remove some of the reverberation. This really isn't a Filco issue, it's more of a common thing with some MX swithes.
Title: Re: return filco?
Post by: tp4tissue on Sun, 22 December 2013, 12:13:35
No, it wouldn't.  The ping is audible because there's a cavity under the PCB filled with air where sound waves can travel and reverberate.  By filling the cavity with something porous that inhibits free sound wave propagation dampens resonant noise within the keyboard.  You can put something under your keyboard too which will help further, but not as much as putting something under the PCB.  A mat on your desk would mostly just help with punching your keycaps reverberating through your desk.

I have severe ping in my enter key.......  it doesn't bother me.(http://www.cute-factor.com/images/smilies/onion/044.gif)


Also, I've tried all the dampening tricks.. etc..  doesn't fix all ping issues..

Sure I agree dampening would reduce reverberation.. But.. I think the effect is very miniscule compared to say a replacement spring..


and returning the filco for replacement, or another mx board, does not guarantee that you won't have some ping on the new board...

Title: Re: return filco?
Post by: PointyFox on Sun, 22 December 2013, 12:28:21
Isn't that just the noise from the keys popping back up?  A ping is a ringing noise caused by vibration of the springs and sounds completely different from the second click in the audio clip.
Title: Re: return filco?
Post by: tp4tissue on Sun, 22 December 2013, 12:36:16
Isn't that just the noise from the keys popping back up?  A ping is a ringing noise caused by vibration of the springs and sounds completely different from the second click in the audio clip.

No if you make it REALLY loud, you can hear the ping...

it's very dim compared to the clicks themselves..

lolkey, this is the new keyboard phenomena (what did ripster call it) mcrip effect or something? 

Where n0vice users over analyze and get hung up about the new toy they just got...


Title: Re: return filco?
Post by: Wildcard on Sun, 22 December 2013, 12:45:13
I believe just reseating the springs helped. I'd probably put a little strain on the spring if it was still loose.
Title: Re: return filco?
Post by: lilky on Sun, 22 December 2013, 13:39:08
Most mechanical keyboards do this, you'll get used to it. Welcome to the mechanical keyboard club!

Also, your name is eerily similar to mine...
Title: Re: return filco?
Post by: lolkey on Sun, 22 December 2013, 13:58:21
Thanks for all the information.

Can the ping noise also be affected by the keycaps at all? The stock keys are really thin, would something like a set of PBT thick keycaps help dampen the sound?
Title: Re: return filco?
Post by: lilky on Sun, 22 December 2013, 18:14:05
Yes it definitely changes HUGELY depending on the keycap material. Also, you could install o-rings if you want to get rid of the ping.
Title: Re: return filco?
Post by: strict on Thu, 26 December 2013, 19:56:25
Yes it definitely changes HUGELY depending on the keycap material. Also, you could install o-rings if you want to get rid of the ping.

Ive got 40AL orings on mine and it still pings
Title: Re: return filco?
Post by: Photoelectric on Thu, 26 December 2013, 20:17:05
Thanks for all the information.

Can the ping noise also be affected by the keycaps at all? The stock keys are really thin, would something like a set of PBT thick keycaps help dampen the sound?

The "ping" is internal--it won't be helped by keycaps.  But placing a liner like one I linked will help.
Title: Re: return filco?
Post by: PointyFox on Thu, 26 December 2013, 23:38:03
Vibrations travel from the keystroke through the keyboard and into the springs.  If the vibration is just right, it will cause the spring to vibrate as well, which rings similarly to a bell.  If you can dampen the plate, it will absorb some of the vibration.
Title: Re: return filco?
Post by: Tony on Fri, 27 December 2013, 00:57:55
With so many metallic springs, your Filco certainly is noisier than any rubber dome you had previously. So learn to live with that, or you may get a good headphone.
Title: Re: return filco?
Post by: Pacifist on Fri, 27 December 2013, 01:08:01
Actually can't really hear it, but if you're talking about a sound of recoil/metallic resonance (known as "ping" here), it's very easy to fix.  Place some dampening material under the PCB.  A popular choice is some cheap rubber-foam drawer liner, like this:

Show Image
(http://www.rabbitlaserusa.com/images/Supplies/NonSlipDrawerLiner2.jpg)


It comes in many colors and also thin varieties that you could add a double layer of (single layer for the one shown above).  Cut to size of the bottom tray, cut some areas out that will go around plastic protrusions where the USB cord channel is, etc.  Place into the bottom tray, reassemble the keyboard.  Yes, it will void your warranty, but it will make your keyboard overall noticeably quieter--this goes for all other brands of keyboards of this design.

Example in a full-sized Filco:

Show Image
(http://i.imgur.com/CUGoanW.jpg)


also

http://geekhack.org/index.php?topic=52677.0
Title: Re: return filco?
Post by: terran5992 on Fri, 27 December 2013, 01:22:29
Actually can't really hear it, but if you're talking about a sound of recoil/metallic resonance (known as "ping" here), it's very easy to fix.  Place some dampening material under the PCB.  A popular choice is some cheap rubber-foam drawer liner, like this:

Show Image
(http://www.rabbitlaserusa.com/images/Supplies/NonSlipDrawerLiner2.jpg)


It comes in many colors and also thin varieties that you could add a double layer of (single layer for the one shown above).  Cut to size of the bottom tray, cut some areas out that will go around plastic protrusions where the USB cord channel is, etc.  Place into the bottom tray, reassemble the keyboard.  Yes, it will void your warranty, but it will make your keyboard overall noticeably quieter--this goes for all other brands of keyboards of this design.

Example in a full-sized Filco:

Show Image
(http://i.imgur.com/CUGoanW.jpg)



This leaves an ugly mark on the bottom of the keyboard after some time
Title: Re: return filco?
Post by: Photoelectric on Fri, 27 December 2013, 01:51:08
Actually can't really hear it, but if you're talking about a sound of recoil/metallic resonance (known as "ping" here), it's very easy to fix.  Place some dampening material under the PCB.  A popular choice is some cheap rubber-foam drawer liner, like this:

Show Image
(http://www.rabbitlaserusa.com/images/Supplies/NonSlipDrawerLiner2.jpg)


It comes in many colors and also thin varieties that you could add a double layer of (single layer for the one shown above).  Cut to size of the bottom tray, cut some areas out that will go around plastic protrusions where the USB cord channel is, etc.  Place into the bottom tray, reassemble the keyboard.  Yes, it will void your warranty, but it will make your keyboard overall noticeably quieter--this goes for all other brands of keyboards of this design.

Example in a full-sized Filco:

Show Image
(http://i.imgur.com/CUGoanW.jpg)



This leaves an ugly mark on the bottom of the keyboard after some time

?  It goes inside the keyboard where you can't see it.  What mark...