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Author Topic: Just had a dumb idea - plate mounted MX's pinging  (Read 942 times)

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Offline N8N

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Just had a dumb idea - plate mounted MX's pinging
« on: Sun, 17 July 2011, 19:20:17 »
Was reading a long thread that included a discussion of pinging switches - has anyone ever tried putting a couple dots of Dynamat or similar damping type material on the metal plate?

The only plate mounted keyboards I have are Alps, and none of them ping (although the SIIG is deafeningly loud...)

I'm just curious if damping the plate would keep the vibration of a keystroke from propagating to nearby switches (which is one theory that I saw put forward.)
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Filco Majestouch-2 with Cherry Corp. doubleshot keys - Leopold Tenkeyless Tactile Force with Wyse doubleshots - Silicon Graphics 9500900 - WASD V1 - IBM Model M 52G9658 - Noppoo Choc Pro with Cherry lasered PBT keycaps - Wyse 900866-01 - Cherry G80-8200LPBUS/07 - Dell AT101W - several Cherry G81s (future doubleshot donors) (order of current preference) (dang I have too many keyboards, I really only need two)

Offline BiNiaRiS

  • Posts: 486
Just had a dumb idea - plate mounted MX's pinging
« Reply #1 on: Sun, 17 July 2011, 20:17:48 »
Theory makes sense.

Plus, half of a square foot of Dynamat on your keyboard should net you an easy 6whp.

Sent from my EVO
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KMAC 2 w/ErgoClears

Offline Waterdr1nker

  • Posts: 134
Just had a dumb idea - plate mounted MX's pinging
« Reply #2 on: Sun, 17 July 2011, 20:17:50 »
Someone at this forum used expanding foam which worked for him. Google "majesfoam" and you'll find it.
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[Use] Filco Majestouch Tenkeyless Blue . Filco Majestouch 2 Tenkeyless Blue . KBT Race 75% Red
[Sold] Filco Majestouch NINJA Tenkeyless Brown . Leopold FC200R Tenkeyless Blue

Offline sordna

  • Posts: 2249
Just had a dumb idea - plate mounted MX's pinging
« Reply #3 on: Sun, 17 July 2011, 20:53:43 »
Good theory. Like a reverb unit, I do believe that *lots* of springs get involved because they resonate around the same frequency, so any one's ping will excite the others a well.
Anyway, here is the radical mod that successfully dampened the noise:

http://geekhack.org/showthread.php?18886-Ringing-Filco-Majestouch-2-Plus-Expanding-Polyurethane-Foam
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Kinesis Contoured Advantage & Advantage2 LF with Cherry MX Red switches / Extra keys mod / O-ring dampening mod / Dvorak layout. ErgoDox with buzzer and LED mod.
Also: Kinesis Advantage Classic, Kinesis Advantage2, Data911 TG3, Fingerworks Touchstream LP, IBM SSK (Buckling spring), Goldtouch GTU-0077 keyboard

Offline greyhounds

  • Posts: 43
Just had a dumb idea - plate mounted MX's pinging
« Reply #4 on: Sun, 17 July 2011, 22:52:17 »
N8N -

I recommended Dynamat as well when I read that thread. I think you'd just have to cut some strips and stick it on teh plate and it'd change the mass enough to reduce the pink. Alot cleaner than expanding foam.

Are you a car guy as well?
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