Building a Japanese mechanical split keyboard Pt.4
We’re SO close! I think there’s a configuration issue because the same key on both boards doesn’t work. I soldered all of the key sockets to the boards and then built them up almost to completion!
This was streamed on Twitch on Dec 29, 2020.
Special thanks to Jesse Vincent of Keyboardio for loaning the Corne Chocolate and sending the Keyboardio Atreus!
00:00:00 Stream Starts
Hello everyone! Happy Tuesday, how’s everyone doing?
Scotty talks with chat a bit and sips his tea, giving people time to get into the stream.
Responding to PC optimization tips in chat, Scotty reminisces on autoexec.bat optimisation of floppy’s.
Scotty hopes to finish the Corne Chocolate keyboard in this stream.
00:03:01 Keyboard project catchup and preparation
“Not enough hours in the day to fix all the things that need to be fixed”
Scotty goes through the next steps, putting the Keyswitches away from now and giving chat a quick overview on where we are in the process.
Scotty has to mount the keyswitch sockets next. It’s something he’s never done before so it’ll be a learning experience.
Scotty checks the build guide to acquaint himself with the next step and does a dry test fit to figure it out.
Scotty lets chat decide whether or not to use the microscope, he feels microscope isn’t really needed and sets up to do a couple without and see how it goes.
Chat recommends flipping it the other way around; scope the first couple and go wide once more sockets have been completed.
Scotty obliges and sets up the microscope.
00:12:20 Soldering Key Sockets to the left board
After some minor, potentially fire starting, mishaps and chat interaction, Scotty starts soldering the key sockets.
He notices the soldering iron needs to be a little hotter than it’s current 280C setting and bumps up to 330C.
After completing one socket to figure out the process, he’s happy to move forward and tins all the pads first.
Scotty comments that the 60/40 solder appears to be better than what he was previously using.
With all pads tinned, Scotty moves to solder the sockets in place.
Joining in on workspace stories in chat, Scotty shares an anecdote on soldering in his apartment in China.
Apparently jackhammers are the most frustrating to have to deal with as the reverberations go up the building.
While replacing all water lines in the neighbourhood, big backhoe mounted jackhammers were used and for another project replacing tiles inside the building they have drill mounted jackhammers.
12hr/day jackhammer sessions make filming very hard!
The conversation moves to infrastructure in Shenzhen and why so much building works go on.
Then Scotty comes up with an anecdote about train rails about how they’re built to a higher train speed spec than is currently used because the Govt. in China is maintaining an affordable infrastructure level for the population during it’s economic growth.
Scotty gives chat a good zoomed view of the sockets he’s soldering and the key switch that goes in the socket.
The sockets are placed in appropriate holes in the PCB and Scotty pushes down on the socket tabs with the iron, melting the earlier tinned pads and soldering the sockets in place.
Answering chat questions, Scotty goes into where he orders components (lots of places!)
And shows chat the acrylic backing plate and PCB covers that will go on the keyboard.
There was some snowfall in Scotty’s area so he drove around appreciating the environment.
Scotty shows chat he’s being experimenting with UV cured resin to make custom keycaps!
00:43:26 Soldering Key Sockets to the right board
Scotty has completed the key sockets on the right board.
After he changes his camera setup a little bit and adjusts his chair, he starts tinning the socket pads on the Left board.
This was done super quickly and Scotty quickly moves on to soldering the sockets.
Scotty talks with chat about PCB designs, reflowing and his microscope.
Twitch controlled vacuum is joked about again.
Scotty talks about making a robot that can go outside but he would have to talk with the governor of the pueblo he is staying at as there are some religious sites and sensitive areas as well as potential nature hazards (for robots) that need to be taken into account.
01:01:12 Building up the Left board
There will be a second channel!
Soldering is now complete according to the guide.
It’s time to install plates and switches.
Scotty tells chat about where he picked up his skills and experience while preparing the black acrylic backing plates.
He gathers small parts in a dish and reads up the guide before starting to screw stand-offs to the backing plate of the left board.
Leaning into a conversation about chat, Scotty says to consider getting a TS80P soldering iron over the TS-100
Talk about shipping from China.
Scotty gives the inside of the backplate a clean with isopropyl before putting the PCB on and then screws the PCB cover in place.
it seems the PCB cover is making switch installation difficult so Scotty removes the cover.
Following a chat recommendation, he installs switches in each corner of the PCB cover while talking about re-applying for Twitch Partner.
This seems to have been the ticket as installing the cover now seems better.
Scotty installs rest of the switches while a discussion on partner/affiliate multi-stream goes on in the background.
Once all switches have been installed, Scotty screws in the PCB cover while letting on his experience of YouTube Premiere.
01:37:41 Building up the Right board
Continuing the YouTube Premiere train of thought, Scotty has actually completed key switch and PCB Cover installation of the left board.
He’s not completely done with the left board just yet but starts on building up the backplate, PCB, PCB cover and key switches on the right board.
Scotty is enjoying building Twitch organically as opposed to his YouTube which went viral and the implications and learning curve that brought with it.
The switch in every corner trick is used again and Scotty is quickly installing the rest of the switches into the board.
01:54:21 OLED Cover installation
Scotty notices he forgot the stand-offs for the OLED covers.
He now has to remove the backplates to install the stand-offs.
Left board OLED cover is installed first and it’s associated backplate then re-installed.
Scotty discovers that he requires an additional 2 screws. Presumably the screws he dropped on stream earlier.
Luckily, he has spares on hand!
Chat starts talking about a project called Solarboi
The project is a remote controlled robot in Australia that can be controlled from hundreds of km’s away.
Scotty loves the idea of a long range robot but he’s not sure he’d trust it.
He finds a screw he lost!
Discussion moves between solarboi and Starlink while Scotty puts the right board back together.
Scotty tests the boards before putting the keycaps on
Scotty asks what test method is best as there was something “the cool kids” use. Chat leads him to QMK Configurator
The ‘V’ key and another key on the left board are unresponsive.
The ‘M’ key and another key the right board also doesn’t work.
These happen to be the same location keys on the right board as the left so Scotty now suspects it might be a configuration issue.
02:17:38 Wrap up
Scotty has to wrap up the stream because of curfew.
He removes the PCB Cover so he can short out the switch but this doesn’t really help.
Scotty turns to GitGub to check if anyone else had a similar problem.
Scotty downloads via to check the keyboard’s keymap.
Scotty has to wrap up before being able to check the keymap.
Thanks for tuning in, Scotty is excited to complete this project tomorrow.
Stay safe and Stay sane!