Open source PCB and case files for TtocyobItna are on GitHub: https://github.com/evangs/ttocyobitna
TtocyobItna is an open-source, base kit-compatible 40% keyboard designed and produced by community memeber Pycki47.
Literally spelled "antiboycott" backwards, it was created in response to an apparent "boycott" of MiniVan boards by several popular keyset designers that refused to include 1.75u row 2 keys (MiniVan Backspace) in any of their kits. Pycki47 was a big fan of the MiniVan and asked TheVanKeyboards for some tips on PCB design before creating this PCB based on the MiniVan layout. A group buy has never been run for the board and only a handful of prototype boards were ever produced.
Trash Man has since created 40700 which features a similar layout using a 7u spacebar without blockers.
A group buy for TtocyobItna ran in July 2022 at Coffee Break Keyboards. Kits started at $250 and included a PCB, a black aluminum case, and a choice of a 3D printed nylon or mirror polished stainless steel plate.
¶ Design
TtocyobItna is based on a 14u wide design that modifies the MiniVan layout to support larger, more common modifier keys found on 60%+ keyboards. Compared to the MiniVan, the left modifiers are extended by 0.5u and the right modifiers are extended by 0.75u, making the layout compatible with standard modifiers found in all keycap sets. The row 2 Backspace key (1.75u on MiniVan) is reduced to 1.5u to make room for an additional 1u key to the right of it. This increased legends compatibility with many keycap sets as 1.5u row 2 Backspace/Delete has become a common key to support boards using HHKB-style layouts. 1.5u row 2 \| keys are also found in all standard base sets if users do not care about legends compatibility.
The bottom row modifiers keys are not extended when compa, leaving blockers in both bottom corners. The key in the bottom-right corner (normally a 1.75u "Lock" key in many MiniVan keycap sets) has been shrunk from 1.75u to 1.25u to remove another possible "boycottable" key. Although the common 1.75u row 4 Shift key would fit in that position, the board already uses the 1.75u row 4 key directly above it.
Holes are available for installing PCB-mount stabilizers under the two split spacebars, left Shift, and the Enter key.
¶ Layout
Firmware can be generated using Trash Man's Configurator.
KLE available here: http://www.keyboard-layout-editor.com/#/gists/5b3cf2488e6a4b7e75b2293f75b23802
TtocyobItna supports a single layout that is based on the MiniVan standard layout with extended modifier keys and modified bottom row as described above.
¶ PCBs
Only one PCB revision exists for TtocyobItna - the original prototypes designed by Pycki47. It supports a single layout described above. The USB-C port is positioned between first two keys in the top-left of the board. A reset switch is located on the far left on the underside of the PCB.
¶ Cases
A 3D printed case was designed to fit the PCB with a bottom-mount design and a 5.1mm thick switch plate. STEP files for the case can be found here: TtocyobItna case files