类型: IC
作者: Lysol_
发布时间: 2022-04-30 03:36:57
更新时间:
2022-05-03 11:49:27
原链接:
https://geekhack.org/index.php?topic=117071.0
Welcome to the IC for the 3rd Round of the LCK75
Render credit: Pontus
Introduction(skip if you don’t care)
Lysol here again, been a
while since my last round of the LCK75, round 2 concluded a
few
months ago and all orders should be delivered by
now. Round 2 of the LCK75 had an update to the mounting
and
it was changed to that of a skeleton kit with m2 standoffs
going from the backplate through the mainboard
to the
fr4 switchplate due to trying to make the typing feel less
stiff. the board also had an update to the layout
that
included ISO and split backspace. With round 3, the only
thing that will be changing is the USB port itself.
Round
3 will feature the inclusion of an SMD USB port for all of
the mainboards instead of a THT port
to mitigate the
issues people had when soldering their ports themselves.
This should take out the main
wildcard when assembling
the kit and will result in fewer lost cause situations with
this change. the new
port will be
pre-assembled/pre-soldered to the mainboards and should
result in less of a hassle to solder the
board from not
needing flux anymore. colors will be restricted to black and
white this round due to having an
overstock of
purple-themed FR4 from the last round.
For those that
are seeing this board/project for the first time, this
was initially the first board I’ve designed and
run by
myself. it was heavily inspired by the CFTKB
Discipline/mysterium and other THT boards at the
time
and as well as the Sat75 from its knob and OLED it
had. since the LCK75’s initial run back in 2020 I’ve been
polishing the
design of the board, open-sourcing
revisions, and running it when possible. thanks to the
friends I’ve made before
and after the initial run of
the LCK75, I’ve come this far in terms of designing and
learning the logistics of planning
and running GBs.
**Files
for revisions 1 & 2 are available on my
Github here.
**
IC FORM
Board Specs
● Layout: Exploded 75% with options
for ISO and SBS
● Colors: Black or White themed FR4
kits
● Effective Keyboard height
including bumpons is:
28.19mm from the bottom nav
arrows
28.76mm from the spacebar row
This can be lower with shorter standoffs and no foam.
● Kit Materials: Fr4 Construction
with foam layer under the pcb
●
Typing Angle: ~6.8 degrees with the rubber
angle feet
● Mount Style: Skeleton
mount with m2 standoffs going through the pcb to mount to
the plate
● PCB: QMK &
VIA/VIAL compatible PCB
●
Board Weight: ~0.8kg built
●
Packaging: a box with a similar design as
r2 with some size adjustments
in the thickness and as
well as adding a QR code for a link to a build guide and
firmware guide onto the box.
●
Kit Contents: 1x Mainboard, 1x Fr4 Plate,
1x Fr4 backplate, 6x 3M bumpons(2 of for angling the board),
mainboard parts,
m2 Stack hardware, 1x ssd1306 OLED
w/ pre soldered header, Preflashed Atmega32a MCU, 1x 36
detent
EC-11 encoder, and 19mm knob, 6mm foam layer for
between the main board and backplate courtesy of
StupidFish1, and 3mm clear acrylic guard courtesy of
P3D.
GB info
● Price
- $100USD @ 150 units(75 black & 75 white) + 50 units(25
black and 25 white) reserved for extras.
● Shipping
- $12USD for CONUS(Priority Mail) & $42USD for majority
of countries outside of the USA(UPS 3 day shipping)
● Vendor
- Worldwide:
LCKeyboards.com(me)
● GB Dates - May 7th 2022 - May
28th 2022
● Lead Time - 2 to 3 months
after GB ends if there are no delays with procurement with
board parts.
Proto pics(example of
what’s possible with layouts)
pics of a white proto
with gmk Modo r1, USB is THT here, but it shouldn’t
matter
and the backplate logo will not be silkscreen as
it doesn’t look good when the silkscreen
is that spread
out so copper islands will be used instead just like the
previous rounds of the LCK75
Lastly, here is my
Discord
server if you’d like to see the other projects I have
cooking and as
well as to know first when something of
mine gets updated as I’m most active on discord out of any
platform.