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geekhack Community => Keyboards => Topic started by: esr on Sat, 24 April 2021, 19:57:57

Title: Seeking docs on interface requirements for Cherry switches
Post by: esr on Sat, 24 April 2021, 19:57:57

Suppose I want to design a switch that  is a drop-in replacement for a Cherry - able to plug into keyboard bases designed to accept them, and able to support a keycap designed for them.

Where are the electrical and mechanical interface requirements for Cherry switches documented?

Title: Re: Seeking docs on interface requirements for Cherry switches
Post by: MIGHTY CHICKEN on Sat, 24 April 2021, 20:43:30

https://drive.google.com/file/d/1mCyr-2AKkUAvFVv7urUcg1ZXiUHRZjrM/view

There's this switch datasheet which is commonly referenced for keeb design, hope this helps a lil bit

Title: Re: Seeking docs on interface requirements for Cherry switches
Post by: esr on Sat, 24 April 2021, 21:13:40

Thanks, that looks like what I needed.

Has anyone in the modding community gone so far as to make a CAD model from this?

Title: Re: Seeking docs on interface requirements for Cherry switches
Post by: treeleaf64 on Mon, 26 April 2021, 23:27:56

Quote from: esr on Sat, 24 April 2021, 21:13:40

Thanks, that looks like what I needed.

Has anyone in the modding community gone so far as to make a CAD model from this?

Yes probably. The hard part is finding them.

Title: Re: Seeking docs on interface requirements for Cherry switches
Post by: Findecanor on Tue, 27 April 2021, 06:11:46

If by "CAD" you mean PCB symbols and footprints, then yes there are lots of them on Github, especially for the PCB designer KiCAD.
It shouldn't be too hard to find 2D plate designs in .DXF format either.
3D models is a different story.