Preview of the Final Version of Miuni32 PCB!

New – Miuni32 Open GB  Revision
Old – Miuni32 OA Revision

Here is the near final version of the Miuni32 brought to you by yours truly Adam, a.k.a Bigtuna. This has been slowly but surely coming for a way long time! It has been an absolute pleasure thus far and can’t wait to get the final version of the PCB out the door into the hands of all the mechanical keyboard enthusiast like me.

From the OA revision version, this Open GB version has a few changes:

  • 10 more RGBS
  • Through-hole USB port for better mechanical security
  • 2 extra mounting holes
  • M2 mounting hole size

Here is the render:

New – Miuni32 Open GB Revision Rendered with Components

Not much changes. Just a little improvement :).

Shoes and Keyboards

It all started with this 4 years ago. There is supposedly a correlation between the type of switch / keyboard one uses with his/her shoes. For example, red switch users apparently go bare foot…? Putting aside the science, the exercise of matching a shoe and a keyboard and posting on r/mk has withstood time and still a daily occurrence in 2017. So I tried it myself. There definitely is this strange satisfaction of photographing my best shoe, Allen Edmonds Park Avenue, with Miuni32 with a case from u/lxkhn.

Padauk cases from u/lxkhn

They came all the way from Ohio, US to the west coast. I was ecstatic when I received his package.  They look, feel and smell simply amazing. Lines are simple. and elegant. I don’t know if he treated the wood, but the grain is smooth yet texture is very much felt. And most surprisingly, the waft of Padauk really adds personality to the cases. Arguably the 2 cases he cut are prototypes. They did not have all the features we wished due to limited time we had. They look absolutely gorgeous.

Miuni32 with Cases From Friends


A big part in the big equation of group buy is the case. Miuni32 is a 30% keyboard. There is no such thing as universal case which is the case for the 60% keyboards.

However, I am not at all worried about this. Even though I know nothing about cutting cases, I have been fortunate enough to work with prominent members of the community like u/lxkhn, u/jolimon, and u/goosekbd who are simply wealth of knowledge and resources when it comes to making cases of different materials. I have padauk cases from u/lxkhn literally on the way at the moment! u/jolimon have been working on the cases that fit the latest PCB revision, and u/goosekbd is working on some amazing carbon-fiber plates.

Additionally, some of the OAs decided to not wait and began making their own cases. I have seen cases made of cardboard boxes, and even *LEGO* and 3D printed! This is exactly what I wanted to see. Miuni32 is extremely compact. It is very easy to create a custom cases regardless of material of your choice. I believe it will be one of the important features of the board :).

I took the liberty to include a few of cases shared by the OAs here:

Lego case from u/MrMontgomery:


Bamboo case from u/lxkhn:


3D printed case from u/that-canadian:


Acrylic case from u/jolimon:



I am glad I was able to write this post within a week since the last one. I hope to keep on writing the behind the scene of this project. After all, I am building a keyboard so I can write blogs while I am sitting in the transit. Like all of you who is reading my blog, I am quite busy with life, but this community is where I find myself calm, tranquility and excitement amid all the noise in this world. So it is too bad I don’t get more time to spend on this project. However, I am committed with all the energy I have. I have been getting helped by amazing people I met since I posted the very first Miuni32 revision. So it is almost there!

Getting Miuni32 manufactured

Putting together a group buy requires much work and attention to details.

After all, this is the part of product development where things are not so straight forward. There is no V = IR really. Selecting vendors, testing out multiple manufacturers, finalizing the designs and figuring out how and where to launch are only a portion of the big equation.

Assembly service is the one I am putting much effort and thoughts into these days. There is no way I will be manually soldering every single component like I did for the OA release. While I loved every moment of it, it just takes too much time! It took 2 hours to solder the components and get a single board tested.

So naturally I have been getting quotes for PCB assembly services, both local and remote companies. Local vendors are too expensive for what they offer. One quoted $12 per PCB and the tolerance requirement was very large. The representative told me relaxing the tolerance from 6 mil to 8 mil would reduce the cost, but I doubt it will make any difference in the end, as this is already 3 – 4 times more expensive than popular PCB services in China (ie. My favorite assembly services thus far are US-based and They are PCB Assembly Service 2.0 start-ups with kick-ass user interfaces. They automate most of the process with intuitive front end, so I don’t have to “email” my files with instructions. This is nice because I can get instantaneous estimates with breakdown of PCB manufacturing, component costs, and assembly services. The final prices based on MOQ are still being worked out, but I would love to go with one of the two. The next best thing in the world is assembly houses based in China. has been my go-to PCB manufacturer thus far. Extremely fast, reliable, and even friendly experience all around for very reasonable cost. The only downside is I get dinged for duty and custom, this applies to every service oversea. I have not been able to calculate the cost for their turn-key style assembly service yet, as their user interface is not as automated as the US-based ones. I believe will still be cheaper after all said and done, but nothing is decided yet. Really need to finalize this soon.

Miuni32-OA PCBs delivered!

Alright, I am typing this with the first released version of Miuni32. Even though Miuni32 is a minimalist 30% keyboard, it took a good amount of effort and time. It also required patience and persistence.

My beta testers, I call them the OAs, and as well as the rest of the mechanical keyboard community have pointed out many of improvements on the design of the PCB through a few iterations these past months of the year 2017. There is no way I would have spotted the short-comings of the initial design of Miuni32 without the keen eyes of the OAs. I will write a separate post for the changes.

They also kept me motivated. I realized designing a piece of PCB was easy, and arguably very fun. The rest of stuff – ordering parts, keeping track of parts, handling shipping and deliveries, processing payments, and other administrative tasks – took a bunch of time and patience. I kept on marching because I was not alone.

Perhaps the most surprising part was that not one OA dropped out. It has been nearly four months since we became a team. We have been fairly well engaged the whole time. You see, I was a little shy of getting Miuni32 out to the world. I was not sure if it will have any sort of acceptance. And it is definitely a great assurance that all my OAs have stuck together. I truly appreciate them.

There has been very little updates on the surface for the past 2 months. Most of the activities happen in the r/miuni32, Github and on our private Discord channel. So I owe the world an update. It is my wish to write more often on the subtle details around this project. So please stay tuned :).




Quick Update on the First Batch of Beta GB

Hello everyone! I have been getting inquiries about the selection process for the first batch of eligible participants of the beta version of Miuni 32 PCBs a lot in my inbox.

While I try to answer all the questions I receive, I won’t be announcing the list of eligible participants until after the January 20th, which is the last day to submit the survey I included in the newsletters! To give everyone a fair chance, I will withhold myself from making decisions until then. This process is necessary because I can’t complete this project alone. I need your expertise in the areas I am not. This means pretty much all aspects of the project except for the PCB design and firmware writing (truthfully, I need your help on that too) :). I have included these areas in the first newsletterI hope to connect with you to be partners in this endeavor!

I am likely to send a follow-up survey or emails once I receive all the responses. So it will take me another a week or so to officially announce the list.

That said, I tremendously appreciate everyone who have signed up thus far. I would like to stay engaged with you all. So please help this project by responding to the survey, and also polls that you will be receiving. Your feedback is extremely important.

Thanks, and feel free to contact me anytime!