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2023-08-04 - I made a keyboard!

  * ⇐ 2023-06-23 ⫤
  *  
  * ⊨ 2023-08-04 ⇒

Another keyboard!

HHKbeeb

A couple of years ago I made a BBC Micro tribute keyboard in the
runup to the beeb's 40th anniversary. I called it HHKBeeb:

a dusty compact keyboard with red number keys and brown modifier
keys; the ALT keys feature the BBC computer literacy project owl
logo; to the right of the keyboard is a Kensington Expert Mouse
trackball

The HHKBeeb is made from:

  * keycaps designed by me and printed by WASD
  * Yiancar HS60 PCB
  * generic HHKB aluminium / acrylic sandwich case
  * Cherry MX clear key switches

I planned to make a beeb-style acrylic sandwich case, but it was too
hard to choose a place to get the acrylic cut, so that never
happened.

In practice I find 60% keyboards (like the Happy Hacking Keyboard)
too small - I need an arrow cluster. So I used the HHKBeeb with a
Keybow 2040 macro pad to give me arrows and a few function keys for
moving windows around.

Keybird69

My new keyboard is for a Finch and it has 69 keys, so it's called
Keybird69. (I was surprised that this feeble pun has not already been
used by any of the keyboards known to QMK or VIA!)

a compact keyboard; most of the keycaps are warm grey with white
legends, but the modifiers and special keys are black and white,
escept for escape and arrows which are red and white; to the right is
a Kensington Slimblade trackball, and below both of them is a dark
wooden wrist rest

It is made from:

  * Signature Plastics DSS "Dolch" keycaps
  * Cherry MX clear key switches with a few Cherry MX silent blacks
    for the modifier keys.
  * Waveshare RP2040-Tiny controller board and USB socket
  * a pretty purple PCB designed by me and made by JLCPCB
  * black FR-4 copper-plated fibreglass switch plate and base plate,
    also made by JLCPCB.
  * enclosure sides are LEGO Technic beams
  * generic conical aluminium feet like the ones that came with the
    HHKBeeb case

why?

A combination of reasons:

  * The HHKBeeb and Keybow 2040 never stayed put, so I would often
    get my fingers on the wrong keys when moving my right hand some
    varying distance between them;
  * Although I like the HHKBeeb's ECMA-23 bit-paired layout in
    theory, in practice it's super annoying to switch between it and
    my laptop's more normal layout;
  * I had a cunning idea for using LEGO in the enclosure, which avoid
    the problem of getting acrylic cut to spec;
  * Learning to use KLE, LeoCAD, KiCad, and QMK was lots of fun.

story time

I have been mildly obsessed with compact keyboards practically
forever, but back in the 1990s there were no good options available
to buy, so I made do without.

The first small keyboard I liked was the (now discontinued) HHKB Lite
2, which has an arrow cluster unlike the pure HHKB. I have a couple
of these lurking in the Boxes Of Stuff in the corner. But I'm not a
huge fan of the limited modifiers, or the Topre key switches (they're
a bit mushy), or the styling of the HHKB case.

I gradually used Macs more, and switched to using the Apple Aluminium
keyboard - the model A1242 compact wired version, and the model A1314
wireless version. I also switched from a Kensington Expert Mouse
trackball to an Apple Magic Trackpad.

But then Apple lost the plot with its input devices, so I thought I
should plan to wean myself off. And in the mean time, the custom
keyboard scene had flourished into a vibrant ecosystem of open source
hardware and software.

So instead of relying on someone else to make a keyboard I like, I
could make one myself! My own PCB and switch plate, designed for just
the layout I want.

And with QMK open source firmware, I can make good use of the fn key
that was so disappointingly unconfigurable on the HHKB and Apple
keyboards.

what's next

I'm planning to write some more notes about various details of the
design:

  * The unix69 keyboard layout
  * Some subtleties of keycaps
  * LEGO Technic beam sandwich keyboard enclosure
  * Designing and manufacturing the Keybird69 PCB

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Comments welcome via  •  Cohost  •  Dreamwidth  &
bullet;  Fediverse  •  Twitter  • 
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⇐ 2023-06-23 ⇐ More random floating
point numbers ⇐ ⇒ The unix69
keyboard layout: nerdy and nice ⇒ 2023-08-04 &
DoubleRightArrow;
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Tony Finch <dot@dotat.at>