类型: IC
作者: polycarb_diet
发布时间: 2021-05-16
02:53:03
更新时间: 2021-05-16 02:53:03
原链接:
https://geekhack.org/index.php?topic=112841.0
S20 - A 5x4 FR4 Sandwich MacroPad/NumberPad
Google Form for IC
If there is anything that you would like to say about
this project, or if you would like to let me know that you
are interested, please fill out the IC form so I can gauge
the next steps for this project!
Background:
More
In my journey to find the perfect layout for a keyboard, for
me at least, I found that 65% keyboards suited my needs the
best. In my line of work, designing circuit boards and doing
3D modeling, sometimes I missed having a number pad. I was
not too fond of getting a full-sized board as I would have
had to constantly exchange between the number pad and my
mouse - I am a righty. This is when I came across southpaw
keyboards and their limited availability on the market.
I
figured, why not just design my own number pad to use with
my non-southpaw boards. Thus, I designed the S20 board for
my own personal use. Since then, my coworkers have gotten a
glimpse of what I was doing and were interested in my
designs. So why not share it with as many peoples as
possible.
I set out to fix up the design to make it
production-ready, and now here we are
Welcome to my
IC!
S20 Case Specs:
(Yes, I know it isnt much of a
case, but it works!)
Color: Matte Black Solder Mask
for top and bottom FR4 plates
Plate: FR4 Switch Plate
with Universal Switch Cutouts (I am deciding whether or not
to offer a 1U plate option as well. 1U and Universal Plate
files will be available after GB, hopefully before delivery
for your convenience)
Hardware: 4 x M3 Brass Standoffs
and 8 x M3 Screws
Width: ~100mm
Length:
~115mm
Height: ~20mm (with 3M Bumpon) (without
switches, keycaps, and stabilizers)
Typing Angle
without Aluminum Feet: 0°
Typing Angle with Aluminum
Feet (not included): 4° (measurement based on the KBDfans
CNC aluminum feet)
Feet: 4 - 3M Bumpon Feet Included.
Mounting holes in the bottom FR4 plate support CNC Aluminum
Feet (not included)
S20 PCB Specs:
ATmega32u4
MCU
QMK Compatible
USB-C Interface
ESD
Protection
Solder Only & 5-Pin Switch
Compatible
4 Individually Addressable LED for accent
lighting
Color: Black solder mask for PCB. I decided
not to go with a matte solder mask here so that the cleanup
process after you solder your switches is as simple as
possible. Also, this board is barely visible after
assembly
Supported Layouts:
Pricing and GB Format:
~$70 for a kit shipped
CONUS only - does not include switches, keycaps, or
stabilizers
What is included:
Top FR4 Plate (This
is also the Switch Plate)
Bottom FR4 Plate
S20
PCB
4 x M3 Brass Standoff
8 x M3 Screw
4 x
3M Bumpon
Limits: 1 per person/2 per address
MOQ:
30
Max Units: 100
Google Form + PayPal Invoice
Entry
Form will be open for 3 weeks, but can close earlier if we
reach over 100 entries. FCFS. You will have 48 hours from
the time you get your invoice to pay the invoice before I
send the invoice to someone else.
Timeline:
- GB Start: Estimating beginning of June - TBD
- GB Invoice Period: 1 week
-
GB Fulfillment Period: ~3 Months
Prototypes:
More
Since I originally designed the S20 for myself, I have added
a programming header so that production is a lot earlier
when it comes time to flash the firmware onto the MCU and I
have changed the USB connector to a USB Type C connector as
it is the way.
I have built a few of these by hand and
have distributed them to people around me to get some
feedback. These are functional and I am content with their
performance!
I have also placed a small batch order of
assembled PCB from my manufacturer to verify that they can
assemble these boards when it comes to the production run of
assemblies. I have verified the PCBA that were sent to me
and I am content with the results.
Some More Images:
Thanks for taking the time to check out my IC post!