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Mini M Opened Up

Posted: 05 Jan 2023, 18:56
by thefarside
I took apart my Mini M to make a measurement for this cool project and wanted to share some photos of the components.

It’s a great little keyboard.
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Like the Model M it has four screws. Mine were Torx T-15:
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Closeup of the screw and Torx bit:
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Opened up!
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Not ready for a bolt mod:
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Controller closeup. Not much there. I wonder if a Model M controller would work for those with controller issues?
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Re: Mini M Opened Up

Posted: 05 Jan 2023, 19:11
by sharktastica
thefarside wrote:
05 Jan 2023, 18:56
I wonder if a Model M controller would work for those with controller issues?
IMG_7037.jpg
You can make your own bespoke controller (like the Mstar) but any old factory Model M controller won't work since the Mini M's matrix is larger and completely different to previous Model Ms (including 122-key) and the second membrane flex cable is thus larger than any previous one to reflect this.

Re: Mini M Opened Up

Posted: 05 Jan 2023, 19:14
by Muirium
thefarside wrote:
05 Jan 2023, 18:56
Controller closeup. Not much there. I wonder if a Model M controller would work for those with controller issues?
Depends on the matrix and the connectors, plus the physical space available for the PCB and routing a cable out of there. Fundamentally, they are the same technology, but the details vary a fair bit, by the looks of it.

Edit: Sharkey beat me to it. IBM's originals are non-programmable so the changed matrix geometry means they will not work.

Re: Mini M Opened Up

Posted: 05 Jan 2023, 22:07
by thefarside
Thanks for the controller feedback. The Mstar from level 1 tech looks nice but costs almost as much as the Mini M :|

Fortunately mine hasn’t had any issues.

Re: Mini M Opened Up

Posted: 06 Jan 2023, 00:11
by dotdash
thefarside wrote:
05 Jan 2023, 22:07
The Mstar from level 1 tech looks nice but costs almost as much as the Mini M :|
It's cheaper if you do the soldering yourself. It would be nice if their code was based on a current version of QMK though.

Re: Mini M Opened Up

Posted: 06 Jan 2023, 05:44
by thefarside
I saw the $45 DIY option and would’ve gotten that but it’s sold out. Hopefully it’ll be back in stock soon.