geekhack Community => Keyboards => Topic started by: nguyenhimself on Wed, 12 June 2019, 12:07:18
Title: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: nguyenhimself on Wed, 12 June 2019, 12:07:18
As seen here (https://www.reddit.com/r/MechanicalKeyboards/comments/bzs9n6/leopold_fc660pt_new_electrocapacitive_key_switch/).
(https://i.redd.it/ny5d812twx331.png)
Title: Re: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: SpAmRaY on Wed, 12 June 2019, 12:16:48
Modern foam and foilish??
I'm thinking pass probably.
I do want to see what's up with the 980M BT though.
Sent from my SM-G930V using Tapatalk
Title: Re: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: Sup on Wed, 12 June 2019, 12:37:11
I don't see any Topre branding. I would guess that Leopold made this them self?
Title: Re: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: rxc92 on Wed, 12 June 2019, 14:33:46
In-house or perhaps Chinese clone? I doubt it would be any better than OEM Topre switches, but maybe worth a try. Most likely just trying to cut out the fees from Topre for using their switches.
Title: Re: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: Sintpinty on Thu, 13 June 2019, 19:04:08
As seen here (https://www.reddit.com/r/MechanicalKeyboards/comments/bzs9n6/leopold_fc660pt_new_electrocapacitive_key_switch/).
Show Image
(https://i.redd.it/ny5d812twx331.png)
Probably a tactile buckling spring as shown in the picture.
Title: Re: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: rxc92 on Thu, 13 June 2019, 22:03:54
Some people are guessing that it's a foam and foil. From the typing test sounds of it, it seems a lot more likely than being buckling spring.
Title: Re: Guys, what's up with this Leopold FC660PT & its Positive Tactile EC switch?
Post by: Findecanor on Fri, 14 June 2019, 08:11:50
It is a type of foam-and-foil (https://deskthority.net/wiki/Foam_and_foil), which is really old technology. The sensing is capacitive: but only on and off.
Old foam and foil has a very mushy landing, which is generally disliked. The foam also tends to disintegrate, thus rendering the switch useless unless you replace the foam pads. The question is if these new switches would have some other type of foam that would impact another type of key feel. HardwareCanucks on Youtube claims that the switch becomes heavy after the actuation point.(6:51 mark (https://youtu.be/AY6s_ziea2U?t=6m51s)).