类型: IC
作者: Jun3
发布时间: 2021-09-28
10:59:36
更新时间: 2022-08-26 03:20:08
原链接:
https://geekhack.org/index.php?topic=114776.0
Jun3
26th August 2022 Updates
Hello
Geekhack! Apologies as I needed to take a hiatus to address
the curve ball that life has thrown at me.
I’m happy to
say that it has been sorted out and I can finally come back
to this project.
I’d like to extent my deepest thanks
and appreciation to those who have previously submitted the
IC/#1,
as well as those who left a comment and
feedback. Every one of them is a motivation and
encouragement to bring
this project into reality!
I’d
like to take the opportunity to address some questions and
also to provide some updates.
Universal or dedicated PCB?
There has been lots of thoughts on to this, but where
the original intention was well, I found that a
universal
PCB might not be the best way to go about this. As such I’ve
decided to have a dedicated
PCB instead so as to have
more control over the quality.
Feedback 1
Quote from: darthcapn on Tue, 28 September 2021,
21:27:22
The case looks good but I absolutely despise the layout.
Would’ve surely gotten in if it was exploded like the jelly
or sat75. Glwgb.
Sent from my SM-G988U using Tapatalk
Quote from: lush_bunny on Tue, 28 September 2021,
21:36:54
I really love the idea. Plus you don’t see
bottom-mounted boards every day.
I’m very curious about
what this would look like with an exploded layout.
Plus
sound tests, of course. Anyway, GLWIC.
I’ve actually
received quite some feedback similar to this, as such an IC
is created with
a new proposed layout, the decision
here will help to determine the final form factor. Overall,
I’ve
tested the design with a 65% layout and I’m quite
pleased at how it turns out.
Feedback 2
Quote from: lush_bunny on Tue, 28 September 2021,
21:36:54
I really love the idea. Plus you don’t see bottom-mounted
boards every day.
I’m very curious about what this
would look like with an exploded layout.
Plus sound
tests, of course. Anyway, GLWIC.
Until I get my hands
on a competent mic, the sound tests that was produced was
quite
scuffed and didn’t do the board any justice. As such I’m
holding it off until I can get a
better setup.
Feedback 3
Quote from: jabe8i on Thu, 04 November 2021, 12:14:17
Is this happening this year, or are we looking at a q1 2022
gb?
It was supposedly scheduled for November 2021 GB,
but I’ve since decided not to rush it,
but instead
spend some time to produce something interesting and that we
can enjoy. Sourcing for
a new supplier has since helped
to propose a more realistic price point as well as better
finishing.
Feedback 4
Quote from: Gerzerker on Fri, 29 July 2022, 00:22:45
Will there be a GB for this board or has the project already
been abandoned?
Would really like to see this board as
the orange board really looks sick.
This project has
definitely taken a break, but I’ve come back to this and am
glad to be
back on “board” (ba-dum-tss)
Design Updates
Some time has been spent revising the backface
design. The previous design executed the concept
perfectly,
but I feel that the design isn’t as bold as
I’d like it to be. As such a bit more time is spent looking
for the
right curves so that the design really pops and
leads the eye pleasantly. Currently feel like I want to push
the boundaries
of what is realistically machinable.
Also,
in for an inch, in for a mile.
As comfortable and pleasant as the flex cuts are
currently, after testing it out as a daily driver for around
3 months, I find that there
are still rooms for
improvements. Updated flex cut strategies will help to
optimize the feel and experience of the board.
Interest Check Form here!
https://forms.gle/DmxqZ2vdF6yuDBKB9
Previous posts/updates
More
JUN3 75%
Designed by Jun3
Hello
Geekhack! Here is a pet project that has been the subject of
my after-work activity, and is finally ready to be
introduced to all of you!
Prototype v3
JUN3 75% Anodised Aluminium Casing
Carbon Fibre flex
plate
Dinokeys Mint Linears
Durock
Stabilizers
GMK Dark
SPECIFICATIONS
- Aluminium anodised single-piece casing
- Bottom mounted Carbon Fiber flex plate
- 7 degree typing angle
-
15mm front lip height
INTRODUCTION
A lot of decisions and selections goes into passionately creating and fine-tuning our mechanical keyboards.
From the sounds, feels, and into the looks of it to personalize it into something we love and we can identify with.
However, most times our components are always hidden in our casing, and sits unnoticed unless being mentioned upon.
This iteration of casing design aims to showcase the beautiful plates and interesting switches that we have chosen to complete our kit.
Furthermore, since we’re spending on CNC, why not exploit that further in creating a distinct and interesting shape,
and is easily identifiable on top of our desk as something that is “Different”
A bottom mount is chosen to achieve the one-piece casing design. Held in by 4 screws and supported by poron gaskets,
it makes the whole assembly easy to take apart at anytime for servicing, changing components, or to test out the latest trending mod.
Furthermore, JUN3 75% is designed to readily accept most 75% PCB in the market. Amongst them are:
-KBD75 v2, v3
-YMDK 75
-XD84
This decision will be explored further in the next section
DEVELOPMENT
Prototype v3
JUN3 75% Anodised Aluminium Casing
Carbon Fibre flex
plate
Equalz Tangerine
Durock Stabilizers
GMK
Merlin
JUN3 75% has gone through numerous revisions since Q4
2020, and has gone through 2 rounds of aluminium
prototype,
preceded only with a lot of trial and error
via 3d printing. Currently with just a few things to fine
tune:
- Flex cuts optimization on the carbon fiber plate, and to explore the introduction of FR4 plate.
- Introduction of poron gaskets to better support.
-
PCB Design.
Although the initial intention was to make this a keyboard design that accepts most 75% PCBs on the market, in the end
it’s only fair that JUN3 75% have it’s own dedicated PCB as well to complete the whole ensemble.
GROUP BUY DETAILS
- MOQ: 300-500 units
- 3 color options
- Tentatively asking for USD$300 selling price if max MOQ is met
- Expected to follow the FCFS sales format
- GB expected to be end of Q4 2021, latest by Q1 2022
-
We’re looking at a 2-3 month lead time to fulfill
orders
There is a few more kinks to work out before JUN3 75% is ready for Group Buy orders, the Interest Check form
will help us reach a definite conclusion to make the whole experience better for everyone involved.
Interest Check Form here!
https://forms.gle/gcirHv3rzFYMbhucA
Thank you everyone for taking the time to read through!
Edit
-Included IC form
September 2021 update
More
UPDATE 7th MARCH 2022
Prototype v3.7
JUN3 75% Anodised Aluminium Casing
Carbon
Fibre flex plate
Dinokeys Mint Linears
Durock
Stabilizers
GMK Samurai + GMK Dark
Hello geekhack! Sorry for the radio silence. Life has
taken over for awhile, but things are getting back on track
now.
Currently we’re looking at version 3.7, and a few
things have gone through troubleshooting and problem
solving,
mainly to create a more consistent typing
experience and to eliminate minor pinging found in the
previous prototype.
ASSEMBLY
Prototype v3.7
3D Rendered assembly image
The whole keyboard will be held together via 4
screws, strategically placed to also secure the plate at the
intended flex points.
I will reveal more about the
carbon fibre plate and how the “flex” works once the new
prototype arrives shortly.
The initial goal was to
design a keyboard that can be dissassembled and re-assembled
easily,
and I think that I’ve achieved this intention
here.
The recent update introduces 2 long porong
strips, each 2mm in thickness along the top and bottom,
where
previously the carbon fibre plate was in charge of keeping
everything level and “floats” on the keyboard.
By
introducing the poron strips, it not only helps to stabilise
the plate, but also to provide additional support to the
plate
and to give a consistent flex throughout. I also find that
it helps the keyboard to create a more “solid” typing
sound.
I feel that the typing height can be lowered a
bit more, and this is going to be addressed in the upcoming
update.
CURRENT STANDING
Prototype v3.7
I’ve entertained the idea of
creating something iconic on the back, as a designer I feel
that it’s necessary
to constantly test the boundaries
of what we can achieve. Parametric software was used to
create a design that plays with
light and shadow. Kudos
to the manufacturer for pulling this off, however the
introduction of such a design bumps up the cost
significantly
(so much so that I could not safely propose this design and
keep the cost to sub $300), so for now a simpler design
will
be used instead of this.
Prototype v3.7
So far I’m enjoying the whole
design process and problem solving. Stay tuned for the
soundtest that
will be coming once the new plates have
arrived! By then I’ll do a short write up on the design
decisions that took part that
led to the final design
of the plates as well as material choice.
Prototypes Line-up
In the mean time, I would
like to share with you the physical prototypes done up to
this point.
Behind each prototype are numerous digital
decisions, and I feel like to actually do a writeup will
result in too huge a wall of words.
Perhaps if any of
the above caught your eye I can tell you a bit more about
them if you are curious.
Until next time, take care
everyone, and thanks for reading!
VENDORs
Asia - Rebult Keyboards
https://www.rebultkeyboards.com/
March 2022 update