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geekhack Community => Keyboards => Topic started by: o2dazone on Fri, 22 February 2013, 22:29:10

Title: [Mod] Another HHKB O Ring modification
Post by: o2dazone on Fri, 22 February 2013, 22:29:10
After being heavily inspired by hasu, mikelanding, and MMKB's Type S :P I decided to silence my own board. I initially used orthodontic bands on one of my boards, and while the sound dampening was perfect, it did affect the throw of the switch slightly. So I went back to the drawing board, absorbing all the great advice in this thread (http://geekhack.org/index.php?topic=34972.0), and got some punches (http://www.amazon.com/gp/product/B000KE17JO/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1), and some rubber (http://www.amazon.com/gp/product/B005584QJI/ref=oh_details_o00_s01_i00?ie=UTF8&psc=1). I also ordered latex, but after one punchout, I realized it was far too stretchy to work with.

[attachimg=1]

Here's me punching holes. After about 6 or so punches, I realized the hammer was overkill, and instead resorted to just placing the punch where I want, and twisting it half a turn. Much less pounding :)

[attachimg=2]

A couple prototypes. I made about 4 before committing to the project completely, to make sure this was even going to work, and wasn't going to waste two hours manually cutting holes into rubber.

[attachimg=3]

Delicious cup rubber

[attachimg=4]

It's like some sort of weird snake shed it's skin here.

[attachimg=5]

Punch punch punch. As you can see none of them were perfect. Because these were such a tight fit in terms of size, any odd ones were thrown out and repunched.

[attachimg=6]

The work area. You can see the dental band modded hhkb in the back, a tore down board, and a couple experimental materials in the background.

[attachimg=7]

Just a cool shot. I wish I had more time to photograph the board, but I was on a mission!!

[attachimg=8]

You can see the rings resting inside the housing. They look a little out of place in some areas, and some required trimming. Others were tossed.



Note: The punches I ordered don't do 9mm and 12mm like hasu had suggested in another thread. Unfortunately, due to ****ty Imperial system, I was stuck between sizes. I knew this going in, and adjusted accordingly.


Overall, very happy with the mod. A hell of a lot more work than the orthodontic bands, but a lot more satisfying in terms that in didn't alter the feeling at all. I'll post up a video shortly with side by sides comparing the HHKB Dental Bands and the HHKB Homemade rubber washers.

Title: Re: [Mod] Another HHKB O Ring modification
Post by: o2dazone on Fri, 22 February 2013, 22:54:43

Black HHKB: Orthodontic bands silencing mod
White HHKB: The mod highlighted in this post
Corsair K60 (the last board): unmodified plate mount cherry reds with cheap hollow keys (just to show comparison of sound)

It's about as quiet as the ortho band mod, maybe a little quieter, but hardly a difference. Feeling wise, it feels identical to an unmodified HHKB.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Michael on Sat, 23 February 2013, 00:22:32
Cloud of boobs.

(http://geekhack.org/index.php?action=dlattach;topic=40582.0;attach=14215;image)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: quake4mhg on Sat, 23 February 2013, 04:27:36
Awesome mod!!  :D
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Batmann on Sat, 23 February 2013, 04:58:53
Cloud of boobs.

Show Image
(http://geekhack.org/index.php?action=dlattach;topic=40582.0;attach=14215;image)


I heard this expression to describe lubed MX switches but I didn't get it,
Now that makes sense!
Title: Re: [Mod] Another HHKB O Ring modification
Post by: chill1217 on Fri, 08 March 2013, 06:48:38
how would you say this mod compares to the type-s?

i already have a realforce 87u.  i'm contemplating whether it would be worth it to shell out $30 to do this mod, or to try to sell my keyboard and purchase a type-s. 

thanks!
Title: Re: [Mod] Another HHKB O Ring modification
Post by: igor.arhipov on Fri, 29 November 2013, 14:51:27
I make custom punches  :)
(http://cs403119.vk.me/v403119790/90d1/05YicjYUFT0.jpg)

Custom punches make perfect rings very fast :)
(http://cs403119.vk.me/v403119790/913f/tYqSw5vk_3g.jpg)

(http://cs403119.vk.me/v403119790/910d/ywMzFT7FzJc.jpg)

(http://cs403119.vk.me/v403119790/9149/tI352F3bpIM.jpg)

Silenced sound is so noble and expensive  :cool: :thumb:  :thumb:

P.S.: I'm ready to give someone a custom punches to make your Excalibur
Title: Re: [Mod] Another HHKB O Ring modification
Post by: terran5992 on Fri, 29 November 2013, 19:12:36
I make custom punches  :)
Show Image
(http://cs403119.vk.me/v403119790/90d1/05YicjYUFT0.jpg)


Custom punches make perfect rings very fast :)
Show Image
(http://cs403119.vk.me/v403119790/913f/tYqSw5vk_3g.jpg)


Silenced sound is so noble and expensive  :cool: :thumb:  :thumb:

P.S.: I'm ready to give someone a custom punches to make your Excalibur

0.o looks awesome
Title: Re: [Mod] Another HHKB O Ring modification
Post by: rowdy on Fri, 29 November 2013, 19:31:06
I make custom punches  :)
Show Image
(http://cs403119.vk.me/v403119790/90d1/05YicjYUFT0.jpg)


Custom punches make perfect rings very fast :)
Show Image
(http://cs403119.vk.me/v403119790/913f/tYqSw5vk_3g.jpg)


Silenced sound is so noble and expensive  :cool: :thumb:  :thumb:

P.S.: I'm ready to give someone a custom punches to make your Excalibur

Welcome to Geekhack!

Those who can, do!
Title: Re: [Mod] Another HHKB O Ring modification
Post by: MJ45 on Fri, 29 November 2013, 19:46:03
Yes Welcome! And what a great first post, that's the best do-it yourself silence mod I've seen so far. How about let me do my Excalibur I,m ready?
Title: Re: [Mod] Another HHKB O Ring modification
Post by: tuxsavvy on Fri, 29 November 2013, 20:06:26
Welcome to geekhack! and yes I am also really surprised at your custom hole puncher. I suppose you do black/metal smith professionally? In either case it looks amazing.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: hasu on Sat, 30 November 2013, 04:21:31
Nice jig. You made even punches yourself!?
Awesome work!
Title: Re: [Mod] Another HHKB O Ring modification
Post by: igor.arhipov on Sun, 01 December 2013, 08:23:45
Thanks bros

Yes, custom punches were made ​​by me from an old iron armature.

all tricks for perfect topre silence rings in this picture
(http://cs424830.vk.me/v424830790/59b7/IAc-W2igt-4.jpg)

Some friends helped me do it on a lathe for a few bottles of vodka ( I dont drink and I'm from Russia )


full report link - http://vk.com/happy_hacking_keyboard?z=album-59398255_180761672 (http://vk.com/happy_hacking_keyboard?z=album-59398255_180761672)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: MJ45 on Sun, 01 December 2013, 11:51:41
Very nice work thanks for sharing your punch design its a simple but efficient way to produce silencing washers. When I silence my HHKB I'll probably use this method as some others limit plunger-travel more than I would like.   
Title: Re: [Mod] Another HHKB O Ring modification
Post by: jwaz on Mon, 09 December 2013, 15:51:10
Thanks bros

Yes, custom punches were made ​​by me from an old iron armature.

all tricks for perfect topre silence rings in this picture

so... how much for a set? :D
Title: Re: [Mod] Another HHKB O Ring modification
Post by: igor.arhipov on Thu, 12 December 2013, 11:53:08
I make a few (2-5) sets and send them for a nominal fee or what ever service.
Two people already agreed with me on the price $ 0.00   ( remains only to find an economical way of shipping from Russia )
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Moosecraft on Thu, 12 December 2013, 12:41:03
I make a few (2-5) sets and send them for a nominal fee or what ever service.
Two people already agreed with me on the price $ 0.00   ( remains only to find an economical way of shipping from Russia )
I would buy one, and shipping wont be that bad as I'm in Sweden :)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Dude on Thu, 12 December 2013, 19:13:43
I just finished this mod.  Good god my keyboard is quiet now!!

For anyone attempting this on their own (Like I did), I used a 1/2" for the bigger punchout, and the 3/8" for the smaller one.  After doing this on my own though, I would highly recommend purchasing those rubber washers from someone if they are willing to make them for you.  They are a huge pain in the bum to make.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Sai on Thu, 12 December 2013, 21:54:07
I make a few (2-5) sets and send them for a nominal fee or what ever service.
Two people already agreed with me on the price $ 0.00   ( remains only to find an economical way of shipping from Russia )

i would buy one if its not too expensive. :D
Title: Re: [Mod] Another HHKB O Ring modification
Post by: do_Og@n on Fri, 13 December 2013, 00:31:18
Awesome work, how long does it take you from start to finish?
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Dude on Fri, 13 December 2013, 01:00:02
Awesome work, how long does it take you from start to finish?

For a noob like me, it took a long time.  I had never taken apart my Realforce keyboard before, so I went really slowly and made sure I didn't mess up any steps.  I also didn't realize that I had to cut off all those nubs on the stems in order to take them out of the switch unit.

Taking it apart and removing all those nubs took me ~2 hours total since I didn't know what I was doing.  Once I had it apart, I spent another 30-60 minutes or so figuring out what size to cut the washers to (And comparing the washers to dental rubber bands, since I was very close at one point to just using those instead of making the washers).  Once I had that figured out, it was maybe 2 more hours of cutting those little washers, lubing each switch with the EK MechLube 2 lube, and putting everything back together.

If I were to do this again, it would be much quicker.  I'm guessing I could probably do it in about 2 hours total.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: oTurtlez on Fri, 13 December 2013, 13:09:54
This is pretty sweet. I just did the dental band mod to my HHKB and though I love the sound, just like you, I'm not really digging the affecting of the throw of the switch. It feels totally different now, almost linear, weird.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: drinkbleach on Sat, 29 March 2014, 13:07:31
My version topre silent mod

https://imgur.com/a/vfjn0 (https://imgur.com/a/vfjn0)

Thanks to all the inspiration:
http://geekhack.org/index.php?topic=40582
http://geekhack.org/index.php?topic=49046
http://geekhack.org/index.php?topic=44692
http://geekhack.org/index.php?topic=40658.msg1234820#msg1234820
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Shyfe on Mon, 28 April 2014, 02:39:17
hey. great idea! I've bought the punches that you linked to. I've also noticed that there's an even thinner sheet of rubber that is otherwise the same as you linked to. It's 0.010" instead of 0.020"

http://www.amazon.com/dp/B005584R1U/ref=biss_dp_t_asn

I've bought a sheet of this and I'll let you know how it goes. Do you have any other suggested punches or is the set you linked to already good enough?
Title: Re: [Mod] Another HHKB O Ring modification
Post by: AKIMbO on Tue, 29 April 2014, 11:42:26
I just replicated this mod...thanks o2dazone!

Popping out the sliders with a screwdriver.
(http://i.imgur.com/AoeufZA.jpg)
Punching gaskets out of the silicon
(http://i.imgur.com/3KreV6E.jpg)
Silicon gaskets installed
(http://i.imgur.com/SEFStiO.jpg)
The final product (the key feels a little heavier but quieter than a stock type-s)
(http://i.imgur.com/U53LMzq.jpg)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Glissant on Tue, 13 May 2014, 05:08:45
I decided to do this mod after I had talked with Bro Caps about different silencing methods for the hhkb pro2. I first did a dental band mod to my hhkb pro2, and I really enjoy the feel and sound of what the 1/8" light dental bands and some lube did to the board.
However, I wanted to do something different to my RF87UB 55g, so I bought the rubber and the punches, and mixed up some lube ready to see how nicely this mod works.


The punches and silicone rubber arrived quickly enough at our house in Philly, but I wasn't going to get them for another few weeks when my wife was to arrive here in Oslo, Norway.
When they finally arrived with my lovely wife I still hadn't realized what I was getting myself into with this mod.
[attach=1]
I also got some shelf liner to see if I could add a layer inside the case to dampen more of the sound. I had not read anywhere that there was room for this, but I still wanted to see. And the shelf liner will be great for my upcoming GH60 builds anyway, so it won't be a waste.

I ended up using the 1/2 inch hole punch for the outer ring and the 3/8 inch punch for the inner ring.
I decided to just punch the rings manually, and not to count any of the material I made just so I could mindlessly punch until I got tired of doing it.
It was a lot of work, and I would suggest looking into alternate methods of having this done because it was very time consuming too.

Punching the first circle wasn't difficult once I got the technique down. Punching the inner circle was a bit more challenging as I had to eyeball the positioning for the lack of a smarter idea.
I got into a rhythm, but had to take a break after a couple of hours because my palm was getting a little beat up.


Here you see some of the finished rings to the left, a few circles left to punch a center circle into and a lot of waste product that I didn't even bother thinking what to do with.
[attach=2]


From then on I just had to pop out the barrels, clean the switch housing and case, and start positioning the rings.
[attach=3]
Notice I have some krytox switch lube from techkeys on the bottom of that plastic bag, and my own mix sticking out at the top. I am so ready to be done with this mod by this point :D



Putting the rings in place was a satisfying feeling. Tweezers help a lot!
[attach=4][attach=5]
Finished product all ready for typing :)
[attach=6]

I'm happy to report that the mod was a great success. The rattle that my RF87UB 55g had before the mod is completely gone, it's a lot more quiet now and it didn't compromise any of the feel of the switches for me.
I would recommend this mod to anyone with the time and will to do it. It was absolutely worth it all in all.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: cookie on Thu, 15 May 2014, 08:42:36
I did this mod with different Material and from what I can say the best (and hardest to find) material is foam.
Dense material like silicone works but the effect is way better on light material like foam.

See here: http://deskthority.net/workshop-f7/happy-hacking-silencing-aka-ghetto-s-t7056.html?hilit=Ghetto)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Awful on Thu, 15 May 2014, 23:33:10
One with butt rubber.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: exitfire401 on Fri, 16 May 2014, 00:07:55
Just did the punching today, but since I'm moving tomorrow, won't be able to put the rings into my 87u until next week. Just hoping I can move my computer and boards without any damage
Title: Re: [Mod] Another HHKB O Ring modification
Post by: daerid on Fri, 16 May 2014, 19:29:49
How does this affect the feel of the switches in terms of key travel? That's the only thing that's really bothering me about the dental band mod.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Glissant on Sat, 17 May 2014, 02:28:55
daerid, I mention it not changing the feel of the switches for me, so key travel doesn't seem to be compromised enough to be noticeable for me. YMMV.
You might also want to try smaller dental bands. I used 1/8" light dental bands in my hhkb, and they didn't make the key travel bad for me, but they still made a big difference in sound.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Latin00032 on Wed, 28 May 2014, 19:04:21
I did this mod with different Material and from what I can say the best (and hardest to find) material is foam.
Dense material like silicone works but the effect is way better on light material like foam.

See here: http://deskthority.net/workshop-f7/happy-hacking-silencing-aka-ghetto-s-t7056.html?hilit=Ghetto)

Did you do a side by side comparison?
Title: Re: [Mod] Another HHKB O Ring modification
Post by: daerid on Wed, 28 May 2014, 22:59:48
daerid, I mention it not changing the feel of the switches for me, so key travel doesn't seem to be compromised enough to be noticeable for me. YMMV.
You might also want to try smaller dental bands. I used 1/8" light dental bands in my hhkb, and they didn't make the key travel bad for me, but they still made a big difference in sound.

I used the ones from ebay everybody linked to in the original thread. For some reason my 55g feels a a bit light on key travel already. Not sure why that is, but the dental bands on top of that were, um... not good.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Glissant on Thu, 29 May 2014, 04:30:52
dental bands on TOP?! That's a loooot of rubber hahaha. Hope you realized that nobody in this thread added dental bands with the silicone punched rings.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Mon, 15 December 2014, 07:37:29
I make custom punches  :)
Show Image
(http://cs403119.vk.me/v403119790/90d1/05YicjYUFT0.jpg)


Custom punches make perfect rings very fast :)
Show Image
(http://cs403119.vk.me/v403119790/913f/tYqSw5vk_3g.jpg)


Show Image
(http://cs403119.vk.me/v403119790/910d/ywMzFT7FzJc.jpg)


Show Image
(http://cs403119.vk.me/v403119790/9149/tI352F3bpIM.jpg)


Silenced sound is so noble and expensive  :cool: :thumb:  :thumb:

P.S.: I'm ready to give someone a custom punches to make your Excalibur

Did anyone end up getting a set of these? I'm ordering the supplies to do this mod to my Realforce and would happily pay to rent them including shipping both ways. I dont have an issue ordering and using the hole punch set from Amazon but this punch setup with the guide pin looks amazing!
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Thu, 18 December 2014, 09:16:17
So I got a chance to try this mod last night and totally botched the whole thing wasting hours of time. I started out using the 3/8" and 1/2" punches but I didn't like how the washers/rings sat in the housings, the OD seemed slightly too big and it caused the ring to kind of bunch up.

So I remembered seeing someone mention using 5/16" and 7/16" punches. This produced rings that initially seemed much better, the rings were much smaller and had to be stretched on to the plunger. During my initial testing of about 5 plungers everything worked great. So I sat down and ground out 82 more rings and started wrapping them around the plungers and putting them back in the keyboard. Once I got the board back together I ran into some serious issues. The rings I created had to be stretched to fit around the plungers and, depending on how perfectly centered I got the inner punch, the outer most perimeter would sometimes flare upwards. With the plunger installed this was enough of an issue to cause more than a couple keys to hang and stick.

It wasn't a total loss though because, before figuring out my silicon washers were garbage, I applied some of the "very thick" Krytox blend to all the housings. I dont feel like it had any noticeable effect on the tactility of the switch but it did make the plungers appreciably quieter. I'm not positive why but in my mind I'm thinking that because this blend is so thick maybe it slows the plungers down ever so slightly and keeps them from clacking so aggressively against the housing. It also helped to remove the little bit of "sweeping" noise you would get when a key is pressed. My board is quiet enough right now having only the very thick lube applied that I'm debating just giving up on the silicon washer business. I'm very happy with how my board feels and glad I spent the effort to apply this lubricant.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Hogesyx on Fri, 19 December 2014, 02:54:26
Foam is definitely better than silicone. I just spent the afternoon converting the expensive 0.5mm silicone that I bought, to some 0.7~1mm low quality foam used for wrapping that I found in my wife's trash pile(from unboxing some parcels).

Pretty amazing result, except the the travel distance is slightly affected now.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: spiceBar on Fri, 19 December 2014, 08:20:36
While I respect that someone has come up with a novel way to silence Topre keyboards, it looks like this method is not easy, and people seem to notice the reduced travel and the resulting loss of tactilty.

Maybe you should try this method:
  https://geekhack.org/index.php?topic=65853.msg1540901#msg1540901

It's easier because you start from rubber foam that has already been cut to the right dimensions, the key travel is almost not affected (if at all), the switch tactility remains the same, and it has been done successfully many times on a wide range of Topre keyboards.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Sun, 08 February 2015, 18:40:51
I got a chance this weekend to re-try this mod. I used 3/8" and 1/2" punches like others had recommended and can confirm that those sizes work. After getting everything bolted back together I now have a fully working silenced board with no dead/hanging keys.

I used the 0.020" silicon sheet but I definitely notice slightly reduced travel. I tested some silenced and non-silenced keys directly next to each other and there is no question that the modified switches have lost a very small amount of tactility. The silenced keys still feel great but not quite the same. The board, however, is almost dead silent now. I'm pretty torn on this mod, the silent part is incredible but the small degradation in tactility is enough to make me question whether or not this is worth keeping.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Michael on Sun, 08 February 2015, 22:32:33
I got a chance this weekend to re-try this mod. I used 3/8" and 1/2" punches like others had recommended and can confirm that those sizes work. After getting everything bolted back together I now have a fully working silenced board with no dead/hanging keys.

I used the 0.020" silicon sheet but I definitely notice slightly reduced travel. I tested some silenced and non-silenced keys directly next to each other and there is no question that the modified switches have lost a very small amount of tactility. The silenced keys still feel great but not quite the same. The board, however, is almost dead silent now. I'm pretty torn on this mod, the silent part is incredible but the small degradation in tactility is enough to make me question whether or not this is worth keeping.


I too, noticed the difference, and it felt enough that I didnt like it much. Some people wouldn't notice it much at all, but some will. I went with placing purple silent RF sliders into my HHKB and lubed them. Really super silent, and smooth. Yes, it's very expensive to have to purchase a $300 keyboard just to mod another $300 keyboard, though.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Sun, 08 February 2015, 23:28:50

I too, noticed the difference, and it felt enough that I didnt like it much. Some people wouldn't notice it much at all, but some will. I went with placing purple silent RF sliders into my HHKB and lubed them. Really super silent, and smooth. Yes, it's very expensive to have to purchase a $300 keyboard just to mod another $300 keyboard, though.

I'm pretty convinced this is the route I'm going to go as well. Find a silenced 87ub and swap the top half onto my 55g cups. I'm going to try this mod in the meantime but I'm really questioning whether I'll stick with it.


Now if only I could find a silenced RF for sale somewhere ...
Title: Re: [Mod] Another HHKB O Ring modification
Post by: spiceBar on Mon, 09 February 2015, 02:10:44

I too, noticed the difference, and it felt enough that I didnt like it much. Some people wouldn't notice it much at all, but some will. I went with placing purple silent RF sliders into my HHKB and lubed them. Really super silent, and smooth. Yes, it's very expensive to have to purchase a $300 keyboard just to mod another $300 keyboard, though.

I'm pretty convinced this is the route I'm going to go as well. Find a silenced 87ub and swap the top half onto my 55g cups. I'm going to try this mod in the meantime but I'm really questioning whether I'll stick with it.


Now if only I could find a silenced RF for sale somewhere ...

You can find a $200 donor board, or you can use $10 landing pads... Very difficult decision indeed. :)
Title: [Mod] Another HHKB O Ring modification
Post by: strict on Mon, 09 February 2015, 21:34:40
I definitely don't like how this silicon mod has made my board feel. Even with the 0.020 sheet it's too much. After typing on it at work all day I've determined it just feels too numb. I really, really enjoy how silent it is, but the loss of this much tactility doesn't make it worth it.

I emailed elitekeyboards to ask if they would be getting more silenced boards back in at some point and they replied that the silenced realforces have been discontinued in the US. :'(

Sounds like my hands are tied and I'm going to have to try your mod, spicebar!  :))
Title: Re: [Mod] Another HHKB O Ring modification
Post by: spiceBar on Tue, 10 February 2015, 14:41:05
I definitely don't like how this silicon mod has made my board feel. Even with the 0.020 sheet it's too much. After typing on it at work all day I've determined it just feels too numb. I really, really enjoy how silent it is, but the loss of this much tactility doesn't make it worth it.

I emailed elitekeyboards to ask if they would be getting more silenced boards back in at some point and they replied that the silenced realforces have been discontinued in the US. :'(

Sounds like my hands are tied and I'm going to have to try your mod, spicebar!  :))

In my experience, there is still a loss of tactility when using a material that is only 0.4mm=0.016inch thick. The thickness of your silicone sheet is 0.020inch, so I don't doubt that there is a significant difference in feel.

I think you will get the keyboard you want with the landing pads mod.

The landing pads will be flattened down to 0.15 to 0.20mm (0.006 to 0.008inch). They will be much thinner than the silicone sheet. You should not be able to feel any difference in tactility because the pad will simply fill the space above the sliders, where there is a little bit of play.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Wed, 11 February 2015, 09:22:05
In my experience, there is still a loss of tactility when using a material that is only 0.4mm=0.016inch thick. The thickness of your silicone sheet is 0.020inch, so I don't doubt that there is a significant difference in feel.

I think you will get the keyboard you want with the landing pads mod.

The landing pads will be flattened down to 0.15 to 0.20mm (0.006 to 0.008inch). They will be much thinner than the silicone sheet. You should not be able to feel any difference in tactility because the pad will simply fill the space above the sliders, where there is a little bit of play.

I went ahead and ordered a pack of the soft landing pads from EK. I will report back in when I get a chance to try them out. Thanks for all your advice and thoughts! :)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: kaminbobby on Fri, 27 March 2015, 03:41:31
In my experience, there is still a loss of tactility when using a material that is only 0.4mm=0.016inch thick. The thickness of your silicone sheet is 0.020inch, so I don't doubt that there is a significant difference in feel.

I think you will get the keyboard you want with the landing pads mod.

The landing pads will be flattened down to 0.15 to 0.20mm (0.006 to 0.008inch). They will be much thinner than the silicone sheet. You should not be able to feel any difference in tactility because the pad will simply fill the space above the sliders, where there is a little bit of play.

I went ahead and ordered a pack of the soft landing pads from EK. I will report back in when I get a chance to try them out. Thanks for all your advice and thoughts! :)

How did it work out in the end? thinking of doing this with my 87u when it arrives!
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Fri, 27 March 2015, 07:42:24
In my experience, there is still a loss of tactility when using a material that is only 0.4mm=0.016inch thick. The thickness of your silicone sheet is 0.020inch, so I don't doubt that there is a significant difference in feel.

I think you will get the keyboard you want with the landing pads mod.

The landing pads will be flattened down to 0.15 to 0.20mm (0.006 to 0.008inch). They will be much thinner than the silicone sheet. You should not be able to feel any difference in tactility because the pad will simply fill the space above the sliders, where there is a little bit of play.

I went ahead and ordered a pack of the soft landing pads from EK. I will report back in when I get a chance to try them out. Thanks for all your advice and thoughts! :)

How did it work out in the end? thinking of doing this with my 87u when it arrives!

If I'm honest, not great. I spent hours fiddling around and could never get the landing pads to work right. They would end up either too thick and would change the feel of the key or they would end up too thin and seemed like they were getting stuck in the housing causing the keys to hang and stick. If you look at some of the pictures people have posted, you can see that part of the landing pad rides up on to the stem of plunger, it seemed like that part would get too thin and would get stuck on the housing when the key was released. I ironed about 30 different pads and only got 3-4 that seemed to work half-way decent.

I eventually gave up on them and worked out a deal with another member here to get OEM Topre silent sliders with the OEM foam ring and couldn't be happier with how they work and feel.  :thumb:
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Ludovician on Fri, 27 March 2015, 07:49:14
Did you trim the edges of the landing pads?
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Fri, 27 March 2015, 08:16:33
Did you trim the edges of the landing pads?

Yep, I tried to trim a couple down but it didnt help. The most common problem was the landing pad riding up on the plunger stem and getting stuck on the housing. This picture (original by spicebar) shows what I mean about the landing pad riding up on the slider stem.

(http://i.imgur.com/BekBPMI.jpg)
Title: Re: [Mod] Another HHKB O Ring modification
Post by: spiceBar on Fri, 27 March 2015, 08:55:44
Did you trim the edges of the landing pads?

Yep, I tried to trim a couple down but it didnt help. The most common problem was the landing pad riding up on the plunger stem and getting stuck on the housing. This picture (original by spicebar) shows what I mean about the landing pad riding up on the slider stem.

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


I'm very surprised, because the fact that the pad rides up on the plunger has never been a problem.

In my first attempts with the landing pads, I avoided making them too thin exactly for this reason. And then I tried and I realized it wasn't a problem at all.

I'm curious about what exactly happened in your case.

On which keyboard did you try the mod?

How can you be sure the problem was caused by the pad riding up the stem? Some people had to cut the corners of the pads, because apparently the corners where the problem.

Did you take pictures?
Title: Re: [Mod] Another HHKB O Ring modification
Post by: strict on Fri, 27 March 2015, 09:50:07
I'm very surprised, because the fact that the pad rides up on the plunger has never been a problem.

In my first attempts with the landing pads, I avoided making them too thin exactly for this reason. And then I tried and I realized it wasn't a problem at all.

I'm curious about what exactly happened in your case.

On which keyboard did you try the mod?

How can you be sure the problem was caused by the pad riding up the stem? Some people had to cut the corners of the pads, because apparently the corners where the problem.

Did you take pictures?

This was on my RF87UB55. I'm not entirely positive the landing pad riding up the stem was the cause of the issue but from everything I could observe that was the conclusion I came to. I ironed the piss out of the landing pads and got them to just a touch thicker than a sheet of printer paper, if I remember I'll try to get some pictures tonight. Like I said, I even tried triming the perimeter of the landing pad because I remembered reading that could cause issues but it didn't help. The issue was on just about every key I tried and pad I ironed, even on the modifiers keys.

I actually gave ironing the landing pads another shot when my purple sliders came in to try to silence my modifiers more but kept running into the same problem where the keys would stick and hang.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: spiceBar on Fri, 27 March 2015, 10:18:05
I'm very surprised, because the fact that the pad rides up on the plunger has never been a problem.

In my first attempts with the landing pads, I avoided making them too thin exactly for this reason. And then I tried and I realized it wasn't a problem at all.

I'm curious about what exactly happened in your case.

On which keyboard did you try the mod?

How can you be sure the problem was caused by the pad riding up the stem? Some people had to cut the corners of the pads, because apparently the corners where the problem.

Did you take pictures?

This was on my RF87UB55. I'm not entirely positive the landing pad riding up the stem was the cause of the issue but from everything I could observe that was the conclusion I came to. I ironed the piss out of the landing pads and got them to just a touch thicker than a sheet of printer paper, if I remember I'll try to get some pictures tonight. Like I said, I even tried triming the perimeter of the landing pad because I remembered reading that could cause issues but it didn't help. The issue was on just about every key I tried and pad I ironed, even on the modifiers keys.

I actually gave ironing the landing pads another shot when my purple sliders came in to try to silence my modifiers more but kept running into the same problem where the keys would stick and hang.

It is possible that we have here the first experience with landing pads that were too thin. I can't be positive about it, but it certainly looks like it was the problem.

Thank you for reporting it, I may now have to warn against making the landing pads too thin.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: Ngt on Thu, 02 April 2015, 18:32:57
I'm very surprised, because the fact that the pad rides up on the plunger has never been a problem.

In my first attempts with the landing pads, I avoided making them too thin exactly for this reason. And then I tried and I realized it wasn't a problem at all.

I'm curious about what exactly happened in your case.

On which keyboard did you try the mod?

How can you be sure the problem was caused by the pad riding up the stem? Some people had to cut the corners of the pads, because apparently the corners where the problem.

Did you take pictures?

This was on my RF87UB55. I'm not entirely positive the landing pad riding up the stem was the cause of the issue but from everything I could observe that was the conclusion I came to. I ironed the piss out of the landing pads and got them to just a touch thicker than a sheet of printer paper, if I remember I'll try to get some pictures tonight. Like I said, I even tried triming the perimeter of the landing pad because I remembered reading that could cause issues but it didn't help. The issue was on just about every key I tried and pad I ironed, even on the modifiers keys.

I actually gave ironing the landing pads another shot when my purple sliders came in to try to silence my modifiers more but kept running into the same problem where the keys would stick and hang.
I performed Spicebar's on my Novatouch. Every time I had this "key stuck" problem it was the "pointy" side of the landing pad getting stuck in the way of the slider. I solved it by cutting the pointy edges and sometimes just moving it a bit. If that makes sense. However it was time consuming.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: joric on Mon, 24 April 2017, 13:14:12
Did the same just today with my HHKB BT. Used 11 and 8 mm punchers.
Got 0.5 mm thick silicone rings, much better than 1 mm thick dental bands:

(http://i.imgur.com/wZh4te9.jpg)

Punchers: http://www.ebay.com/itm/201177951571 ($1.5 for 8 mm and $2.5 for 11mm puncher)
Rubber: http://www.ebay.com/itm/271225606536 ($2.5 for 0.5 mm A4 sheet)

(http://i.imgur.com/bP3Xv0s.jpg)

(http://i.imgur.com/tq3HcXS.jpg)

(http://i.imgur.com/ZnKexUX.jpg)

Feels like an unmodified HHKB but the rattling's gone and it's infact even quieter than dentalbanded. 8mm inner diameter seems a tad too small and you have to recheck if it sits properly or you'd have to reopen the keyboard and realign the rings (I had to), I think it should be about 8.5 or 8.2 mm as here (taken from another post):

(http://i.imgur.com/U6n85U5.png)

Hypersphere rings are precisely 11 x 8.50 x 0.5 mm so they don't sit as tight as 8 mm ones and cause fewer problems.

I'd recommend 8.5 mm inner diameter as on hypersphere rings, but 8 mm puncher ($1.5 (http://www.ebay.com/itm/201177951571)) works just fine.

Outer diameter made with 11 mm puncher ($2.5 (http://www.ebay.com/itm/201177951571)) seems fine too, there's no need to make it bigger.

Considering A4 silicone sheet ($2.5 (http://www.ebay.com/itm/271225606536)) is 210 x 297 mm you could punch at least 210/11 * 297/11 = 513 rings.

Considering circle packing (https://en.wikipedia.org/wiki/Circle_packing) you could laser cut 210*297*0.9069 / (3.14*5.5**2) ~ 595 rings per sheet.

As for small quantities there's no much need in laser cutting, it takes about 20 minutes to cut 60 rings using punchers.

This method effectively drives the cost to about 1-2 cents per ring.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: kiwi99 on Mon, 21 August 2017, 13:13:28
Got the tools and did this mod on my hhkb with a different material than originally suggested because I couldn't find a good source.

Used a 0.5 mm silicone sheet from eBay and I enjoy the change; next thing I am going to do is I have some of those small fiber washers which I am going to install to remedy (https://imgur.com/a/DLuOw) the shortened travel hopefully.
Title: Re: [Mod] Another HHKB O Ring modification
Post by: joric on Thu, 30 August 2018, 14:32:53
(https://i.imgur.com/pW0wUcJl.jpg)

Kiwi99, WHOA. This is the ultimate mod. Guys, look at this. https://imgur.com/a/DLuOw