类型: IC
作者: holtenc
发布时间: 2018-12-11 21:22:53
更新时间:
2019-04-30 07:43:51
原链接:
https://geekhack.org/index.php?topic=98580.0
Prime_E. A 45% ergo board.
GB thread
JOIN
Design Features:
4.75mm integrated switch plate
Inner alphas rotated inward at 8deg
6deg incline
3 indicator LEDs
All aluminum, 2-part case. anodized
Hotswap via Kailh sockets
USB-C
QMK
Via support
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Update 4/24/2019 - Revised sample received.*
Here’s the revised sample (apologies for the craptastic incandescent lighting). The bezel is now a much nicer fit around the keycaps. Other changes: Bezel slightly raised by 0.5mm
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Switch cutouts made ever so slightly bigger. They were extremely tight and it was difficult to push the switches in
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I’m now reasonable confident to say that the GB will open up May 3rd*
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Update 4/4/2019 - Samples/prototypes on hand. Lots of pictures*
Here are a few with various keycap profiles. The complete album can be found HERE and includes pics in various states of assembly. ( https://imgur.com/a/ikJR7u2)
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Update 3/20/2019 - Samples:*
More
I just have the one picture for now. I hope to have them in
my hands next week sometime and will get more pictures at
different angles. Also, still waiting on one more sample
from a US-based shop.
Update 1/21/2019 - Renders Added (thank you
voodoo6k!)
More
Update 1/19/2019 - 3D printed prototype:
More
I was going to wait until I got my new 3D printer that would
be capable of printing the case parts whole, but it got
delayed until February and I’m just too impatient to wait.
So I had to print it in portions and glue them together. The
point of this was to confirm that the PCB fits correctly.
Next step is getting some CNC aluminum samples
Update 1/14/2019 - Prototype PCB:
More
Today I received assembled prototype PCBs. All is good and
working as intended.
Update 12/22/2018 - finalize features and
layouts:
More
Changes:
- added USB-C
- split backspace only
- 2u and 2.25u spacebars
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moved indicator LEDs to upper right corner
Here are some CAD views of what is more or less final. Things such as rounded corners could change based on feedback. Getting hardware of some form in hand mid January
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ignore the missing enter footprint 
Outdated content:
More
After seeing the TGR Alice and subsequently not getting in
on the GB, I decided to design something similar but in 45%
form factor. I have been using it as a daily driver for
several months now and absolutely love it.
Enter
Prime_E, a 45% ergo design. Or at least a proposal and
looking for feedback so I can produce a keyboard that
appeals to a larger group and works with a wider range of
keycap sets. Even if it means starting over.
I was at
about 90% done with the project. Both case and PCB. But
couldn’t decide on a final layout. Particularly the bottom
row and right-side modifiers.
Case assembly:
Bottom view of top part showing thick integrated
plate with provisions so switches can snap in:
Layout ideas:
Initial design.
Fine for DSA. Not so fine for sculpted. Issues: 2x 2u
spacebars. R2 2u backspace doesn’t exist in sculpted sets, I
think
Split backspace and 2.0/2.25u spacebars should expand
compatibility with more sculpted sets. 1.25u mods in lower
right instead of 1.5u.
More experimentation with bottom row. 1.75u spacebars
probably have wider compatibility that 2.0. Right-side
modifiers shrunk by 0.25u which basically provides minivan
compatibility.
I think it’s fair to say that 2u backspace is a bad
idea. 2x 2u spacebar is a bad idea. So lets hear some
feedback in preferences, particularly for keycap
compatibility. I pretty much strictly use DSA so I’m not too
familiar with Cherry/SA norms. Personally I would lean more
toward the 2nd layout but maybe go with 2x 1.75 spacebars
thereby getting rid of stabilized keys altogether. So lets
hear some feedback.
I’ll end it here with some pictures
of the board I’ve been using for a few months so you can see
some real life examples of what it would look like.
Minus the giant numpad of course
The bezel under the spacebars will be smaller as seen in the
render at the top.
