From what I gather, the EC60 is made compatible with the GH60 board.
From the GitHub repo:
- Layout size: 60% (GH60 outline and mounting points, see pictures below)
The PCB size is: 285 mm x 94.6 mm and 1.6 mm thick.
Iām taking baby steps, looking into KiCad to make a 40% ortho PCB.
It would be wayyyyy cheaper to go with something like JLCPCB. Or even PCBWay, Elecrow. You can play with the GitHub files to get different prices JLC prices with assembly (plus shipping).
5pcbs = $192
10pcbs = $300
20pcbs = $470
If getting FR4 plates they usually come back and ask for $15 extra for machining after the order is placed.
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Sharing what I have learnedā¦ these arenāt the 80s consumer electronics PCBs I dabbled with my soldering iron 
These PCBs are built in four layers ā very new to me. Understanding the routing across these layers is mind-numbing and fascinating at the same time.
Thanks @Dave, thatās really helpful! May I DM you to ask a few more questions about the order process?
Hi there,
just landed after seeing a message from dave about the order specs.
I have added a dedicated section in the readme of the project with specs and notes about the options to use. Hope this clarifies a bit the process 
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Hopefully JLPCB restocks usb-c ports soon; Iāll probably be placing an order between 5 and 10 boards
Idk if theyāll restock them shortly. One thing you can do is to grab them from the parts manager and have them in your inventory. For whatever reason JLC and LCSC still treats their warehouses as separate entities, even tho theyāre not.
Thatās usually how I do it, stock in my personal lib parts that I know they are fluctuating in price/availability so that I never run out.
Currently LCSC has those usb ports iirc.
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Just placed an order for 5! 
Iām nervous that I did something wrong, but I followed the provided instructions, so hopefully it all works out. 
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Iām assessing two options for a case:
-
Grid600 rev2 (when it releases). The HHKB blockers look really clean, and its tray-mounted so it should be compatible. I may run this by Grid (the creator) first.
-
MK Milling Walnut HHKB Case. It appears to be made-to-order, and is designed specifically for the HHKB layout with the GH60. Seems like a perfect match.
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Both seems like a nice options NGL. One thing you gotta check is if thereās enough space for the spacebar stabilizer protruding. That way you can use OEM/DES parts no worries. If space constrains donāt allow it then you might want to consider alternative spacebar options. For those tho I donāt have the footprints yet and for now I donāt have contacts for custom made ones beyond the OEM versions.
Quick follow-up for anyone who might be making their own EC60.
I spoke with the creator of the MK Milling Walnut HHKB Case and confirmed that it will not work for the EC60. His case is tightly coupled to a particular plate that he provides. The mounting points between the case and plate will not align otherwise.
Iāve yet to find an off-the-shelf, GH60ācompatible, tray-mount case with HHKB blockers. So Iām going to design my own! Stay tuned.
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