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geekhack Community => Keyboards => Topic started by: Infinite north on Sat, 29 May 2010, 12:58:18

Title: topre vs cherry membrane
Post by: Infinite north on Sat, 29 May 2010, 12:58:18
I'm sure this is sacrilege but I found this graph of some cherry membrane, they look just like the topre graphs. so why are topres better than these?

(http://geekhack.org/attachment.php?attachmentid=10424&d=1275155349)
Title: topre vs cherry membrane
Post by: ch_123 on Sat, 29 May 2010, 13:19:49
Unless you like Unix.
Title: topre vs cherry membrane
Post by: ch_123 on Sat, 29 May 2010, 13:33:56
I don't have facial hair. Should I dispose of my HHKB?
Title: topre vs cherry membrane
Post by: itlnstln on Mon, 31 May 2010, 15:46:27
You even have a UNIX guy there to explain it.
Title: topre vs cherry membrane
Post by: Findecanor on Tue, 01 June 2010, 03:37:44
Can someone explain what Cherry means when they write "Multi-Haptic Technology"?

To me who has worked with haptic devices for virtual environments, the word "haptic" means that there would be some kind of touch-feedback: some kind of mechanic response. Not just resistance, but an actual reaction to input.
Title: topre vs cherry membrane
Post by: Rajagra on Tue, 01 June 2010, 08:02:24
Quote from: Findecanor;188664
Can someone explain what Cherry means when they write "Multi-Haptic Technology"?


My guess is you can feel it on the way down AND on the way up. :lol:

Much like that club in the Blues Brothers film that plays both kinds of music. Country AND Western.
Title: topre vs cherry membrane
Post by: Mental Hobbit on Tue, 01 June 2010, 09:49:23
Mushiness of rubber domes + scratchiness of key stems = Multi-Haptic Technology.
Cherry's rubber domes are crap, even by rubber dome standards.
Title: topre vs cherry membrane
Post by: Infinite north on Tue, 01 June 2010, 12:34:06
According to the internet: http://en.wikipedia.org/wiki/Haptic_technology (http://en.wikipedia.org/wiki/Haptic_technology)

Quote
Computer and video games

Some simple haptic devices are common in the form of game controllers, in particular of joysticks and steering wheels. At first, such features and/or devices used to be optional components (like the Nintendo 64 controller's Rumble Pak). Now many of the newer generation console controllers and some joysticks feature built in devices (such as Sony's DualShock technology). An example of this feature is the simulated automobile steering wheels that are programmed to provide a "feel" of the road. As the user makes a turn or accelerates, the steering wheel responds by resisting turns or slipping out of control. Another concept of force feedback is that of the ability to change the temperature of the controlling device. This would prove especially efficient for prolonged usage of the device. However, due to the high cost of such a technology and the power drainage it would cause, the closest many manufacturers have come to realizing this concept has been to install air holes or small fans into the device to provide the user's hands with ventilation while operating the device.

In 2007, Novint released the Falcon, the first consumer 3D touch device with high resolution three-dimensional force feedback, allowing the haptic simulation of objects, textures, recoil, momentum, physical presence of objects in games.[3][4]


So the cherry rubber domes have a rumble pack?

(http://chud.com/articles/content_images/5/videogame.jpg)
Title: topre vs cherry membrane
Post by: JBert on Wed, 02 June 2010, 17:03:53
Quote from: Mental Hobbit;188684
Mushiness of rubber domes + scratchiness of key stems = Multi-Haptic Technology.
Cherry's rubber domes are crap, even by rubber dome standards.
Well, their Cymotion Expert (http://www.cherry.de/english/products/keyboards_CyMotion_EXPERT.htm) is usable. It has a crisp feel to it* and has decent sliders. It is a G86-22000 though, so maybe you were talking about the G83 ones.

* For a rubber dome. Don't expect miracles.
Title: topre vs cherry membrane
Post by: JBert on Thu, 03 June 2010, 16:41:01
That's just details, but I edited the post anyway. I haven't disassembled such a keyboard as they're at my workplace, and I have my boss sitting next to me. Can't go disassembling company keyboards during office hours...

Once the dome collapses, most of the time you do activate the switch. It actually takes a little effort to press it so softly that it won't actuate, whereas other keyboards just mush until you press hard enough to make a contact.