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【IC】The DBOM - Split Three Part Full-Size|75% Hybrid

类型: IC
作者: Schuerie
发布时间: 2020-08-04 09:13:03
更新时间: 2020-08-04 11:53:08
原链接: https://geekhack.org/index.php?topic=107905.0


異体同心 (itaidoushin)

Different Bodies, One Mind

Gallery:
https://imgur.com/a/XI9or52
Hello everyone! This is my first post on Geekhack, but I’ve been a member of the keyboard community for almost 4 years now.
The DBOM is my dream board. I’ve played with the thought of making it in some way or form for years now and finally, here it is.
The Design
Three PCBs, south facing per-key RGB backlight, 5° typing angle, sandwich mount, QMK firmware and a quite unique layout.
The main reasons for making this layout the way it is are entirely practical, in terms of use but also design. It’s closest to a 75% with a numpad, but of course not quite the conventional take.
Most noticeably, the Home/End column, which would usually be on the right on a 65/75%, sits on the left here, which offers a couple benefits. Whenever using a mouse, most people will rest their left hand on the keyboard. Moving keys towards the left therefore effectively minimizes hand travel distance. And even if you don’t find yourself using these keys a lot, they’re of course fully configurable to fit your needs.
The second benefit of this is symmetry. The left and right center pieces are almost identical in width, with the exception of the needed adjustments of a staggered layout. This also helped the design process, as it allowed for no more than a single LED driver per PCB (IS31FL3737, the largest LED driver currently supported by QMK).
There is a single trade off made for this. The arrow keys are not arranged in a flipped-T position, but are all sitting next to each other, in a VIM-style configuration of sorts. One way to get around this is to remap the right shift as the up arrow.
Three space bars, a 2.75u, a 1.25u and a 2u (left to right). The intended use would be to have the 1.25u set as a function key, which would again help greatly when operating the keyboard with only the left hand.
The final deviation from the standard layout is the split HHKB-style backspace, which I don’t think needs much of an explanation.
For the time being, this will be the only layout supported.
Of course the pieces are freely arrangeable, regular numpad on the right, southpaw style or even in the middle, all possible. Every PCB will use a dedicated unified daughterboard.
Going Forward
This is an IC in the early stages. The first revision of this design is finished, but I have not gone into prototyping yet. For now I’m looking to buy a couple PCBs to drive down the individual price and sell off any leftovers, given they do work as intended of course. This might change depending on how many people express their interest here. I can not yet give a conclusive take on how the manufacturing of the case will be handled. Being a multi part design, I expect it to not be cheap at all. This is again all coming down to the community’s interest.
Also, I want this board to be entirely EU made if it is in any way feasible, preferably in Austria where I’m from, but I will of course be trying to sell to anyone willing to buy anywhere.
If this IC turns out great, I will get in contact with local manufacturers.
Please fill out the IC form!
https://docs.google.com/forms/d/1H8kT8InmxzsmNoMvWlw-z_NWIMpbAVglVbyp6zvUph0/
And on a final note: Everything you see here was made by me using open source software, namely KiCAD, FreeCAD and Blender, all on Linux :)
Thank you for your attention and feedback, I highly appreciate it.

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