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geekhack Community => Keyboards => Topic started by: HungerMechanic on Wed, 08 April 2020, 19:45:46

Title: What, exactly are the Cherry actuation / bottom weights?
Post by: HungerMechanic on Wed, 08 April 2020, 19:45:46

I'm looking to get a better handle on the springs that go into Ergo Clears.

I know that MX Brown is one of the classic springs that went into those early Ergos. What I lack is an exact understanding of how those Cherry 'light' springs relate to the modern springs such as TX and Spirit.

People like to use springs that bottom-out at 63.5 and 65 gr for their Ergo Clears. Some people use gold-plated springs that actuate at 60 gr and bottom-out around 65-70 gr. Etc.

What I would like to know is exactly what are the actuation weights, tactile event weights, and bottom-out weights for the Cherry 'light' switches, such as MX Brown and MX Blue? In the modern system of measuring spring weights, where does MX Brown actuate, and then bottom-out? And perhaps the MX Clear, for comparison purposes.

Title: Re: What, exactly are the Cherry actuation / bottom weights?
Post by: AJM on Thu, 09 April 2020, 12:43:32

I would think the diagrams in the spec sheets on cherry's website should tell you that:

https://www.cherrymx.de/_Resources/Persistent/0d02c435189d71492e5a897bcc1c545907d1b283/DE_CHERRY_MX_BROWN.pdf
https://www.cherrymx.de/_Resources/Persistent/0b1a188450a888319dc5ace812d0801385edb273/DE_CHERRY_MX_BLUE.pdf
https://www.cherrymx.de/_Resources/Persistent/1b6383866bac68a8b44258ed47d781bede21f8dc/DE_CHERRY_MX_CLEAR.pdf

Title: Re: What, exactly are the Cherry actuation / bottom weights?
Post by: HungerMechanic on Thu, 09 April 2020, 15:36:29

Thanks! Didn't trouble myself to do a search in German!