类型: IC
作者: kbd0
发布时间: 2022-09-07
15:53:51
更新时间: 2022-09-07 23:51:11
原链接:
https://geekhack.org/index.php?topic=118293.0
curve0: (first prototype)
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About the prototype:
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The prototype has open sides. I am considering
adding walls. Please fill out the interest check for your
preference to be heard.
The prototype has extra cutouts
that will not be in the final product. For example the
switch cutouts are extra tall on the spacebar row in the
prototype.
The spacebar row angle and offset (from
shift row) will probably be smaller in the final product
than in the prototype.
Why curve
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It has long been known that a flat typing surface
is not very ergonomic. This is why profiled keycaps
exist.
You may have noticed that all keycap profiles
share a common characteristic: the overall typing surface is
in the general shape of a curve.
(original photo from
https://geekhack.org/index.php?topic=68550;
check out that thread to see lots of other profiles)
Changing
the keytop angles (in order to achieve a curved typing
surface) has flaws:
-
The angle of the force applied to the key is not in line with the translation axis of the switch. As a result:
-
Only the component of the force that is parallel to the switch action actually contributes to moving the switch. The operator therefore needs to press harder in order to move the switch the same amount (vs flat keytop):
-
The perpendicular force component becomes friction. This results in a less smooth key travel.
-
Additionally, the added friction resists the movement of the switch and makes the operator have to press even harder!
-
The angled keycaps also need to be taller. The perpendicular force component therefore has greater leverage, which increases its added friction (which decreases smoothness and requires you to press even harder):
To fix these flaws, curve0 has the switches themselves at an angle. This gives a curved typing surface with flat keycaps.
Another advantage of having the switches at an angle is that your finger actually moves in the direction of the press during the keytravel, which feels more comfortable (in my opinion at least).
About curve0
To give everyone a chance to try this new concept, I designed a simple construction to keep the price low. The case (into which the plate is integrated) is cut and bent from a single piece of metal. The material is stainless steel with a brushed finish.
curve0 is designed specifically for DSA keycaps but XDA works too (they are taller so the curve will be a bit more pronounced and the keys will feel closer together (vertically)).
With DSA keycaps, the typing surface of curve0 is similar to that of MT3. The exception is the spacebar row, which has a slight downward angle.
Layout support
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Layout options TBD. Since extra switch cutouts
(from supporting multiple layouts) would be visible on the
bottom two rows, I will probably have multiple versions each
with fixed layout (on those rows). Please fill out the IC
form for your preferences to be heard.
Kit will include
- Stainless steel case/plate thing
- PCB, daughterboard, and their connecting cable
-
Screws (for daughterboard), rubber feet
You will need your own: switches, keycaps, PCB-mount stabilizers
Price
Under $100; exact amount TBD
If you are interested please fill out the Interest check!
Discord server
https://discord.gg/8vnp8U6Z