类型: IC
作者: Pylon
发布时间: 2020-05-20 14:06:20
更新时间:
2022-09-19 20:03:27
原链接:
https://geekhack.org/index.php?topic=106501.0
This is an interest check for a compact 120% keyboard I’m
working on, with a layout inspired by the Driftmechanics
Austin. This is the first custom keyboard I’ve designed, though I
have a mechanical engineering background and have done other
electronics projects before.
== Update - March 19, 2022:
==
I am no longer planning on running a group buy for this
board. The files have been open-sourced on
GitHub, with ordering guides for the
3D-printed version
and
metal version. Both versions have been prototyped. However, the files
are provided as-is and cannot be guaranteed to be free from
mistakes or defects. Order parts at your own risk.
The
CERN OHL-W license
permits 3rd-party group buys with no royalties or fees, but
requires changes and derivative works to also be
open-sourced. I may change the license to the
Acheron OHL V1.4
license in the future, which has similar requirements.
**==
==**There are two case options - 3D printed with
several FR4 pieces, and a CNC version.
General Specifications:
121-keys - full-size + 18 programmable keys
About 2u narrower than a regular full-size
-
Traditional 2x3 Ins/Del/Home/End/PgUp/PgDn nav block
Full-sized numpad with 2u “0” key
-
ISO, split-backspace, split numpad 0, numpad = key and split space support (on universal plate)
Rotary encoder support, above the Esc key
USB-C
STM32F072 controller
QMK and Vial support
-
Optional single-color LED backlight support (has not been tested on latest PCBs)
Single RGBLED to indicate layer status
-
Electrical schematic and firmware largely derived from the Austin. Case and PCB are different.
3D-printed/FR4 version: -
4-piece 3D-printed case, with FR4 bottom panel and bumpon holders. Artwork of Boston’s maze-like street network on the bottom
-
Printable on cheap hobbyist printers - minimum 200 long x 150 wide x 210mm tall mm build area required. Prototypes were printed on an Ender 3.
-
Top mount (technically, though an unusual implementation of it)
FR4 plate only
-
6.5° typing angle
CNC aluminum version: 2-piece CNC case (no weight)
Traditional top mount
6.5° typing angle
-
C3 Unified USB-C daughterboard
The layout for this was inspired by the Austin and also by the 7-row Thinkpad keyboard you find on Thinkpads of the T420 generation and older. The name is somewhat a pun off Austin since the layout is derived from it, and because I grew up (and currently live) near the city Boston, Massachusetts.
This project uses the open-source Acheron library from the Acheron project. KiCAD PCB files are available at my Github below. STL files and STEP files of the 3D-printed version are available here below under the CERN OHL-W (which is fairly permissive), and you are free to use the files to make one yourself. Unfortunately, due to arrangements I’m working out with my manufacturer and vendor, it is unlikely that the metal case will be open-sourced as originally planned.
https://github.com/bluepylons/Boston
Many thanks to Gondolindrim for the Acheron project and for feedback on the early PCBs, and to the designers of the Driftmechanics Austin (Driftingbunnies, PheonixStarr and Gondolindrim) from which this was derived. Also thank you to all 129 people that filled out the old IC form - your feedback was definitely appreciated. At this point I’ve collected more than enough data, so I took down the form.
MouserPounder made a signature graphic if people want to put these in their signatures (this has a picture of the older prototype)
Code: [Select]
[url=https://geekhack.org/index.php?topic=106501.0][img
width=304 height=120]https://i.imgur.com/LYOA5Fp.jpg[/img][/url]
(post revisions)
May 20, 2020 - Initial post
May
20, 2020 - Replaced renders with ones that accurately depict
the seam in the middle
May 29, 2020 - Moved F-keys over
rightward slightly. Bottom weight is now aluminum instead of
brass as the keyboard is pretty heavy to begin with.
June
2, 2020 - Corrected some references to the Austin
June
19, 2020 - Added pictures of prototype (without LEDs or
rotary encoder installed)
June 20, 2020 - Added
signature link that MousePounder made
July 4, 2020 -
Updated signature link
July 12, 2020 - Reorganized
feature list, added plate files to Github
August 16,
2020 - Shortened title
September 3, 2020 - Revised post
significantly. Removed a lot of outdated info. Added
pictures of the 3D-printed version
September 5, 2020 -
Fixed required build area to 3D print the case (I overstated
the necessary build area). Added some rough tentative
pricing for the 3D-printed version. Added IC Form for
3D-printed version.
October 12, 2020 - Added sound test
of the 3D-printed version.
January 25, 2021 - Some
minor edits, added top pictures of the 3D printed version
February
5, 2021 - Updated the IC in general, removed a lot of
out-of-date info. Changed license to CERN OHL-W.
March
27, 2021 - Removed prices
April 11, 2021 - Added FCC
disclaimer
March 19, 2022 - Updated everything
May
1, 2022 - Changed some of the images on the original post
Sep
22, 2022 - Removed some outdated info about the metal
version from prior revisions (and some stuff I accidentally
copy-pasted from the 3D printed section)