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GitHub Issues GitHub License

The Dilemma is a vertical stagger low-profile keyboard with mods.

Table of contents

Features

  • Heavy pinky stagger
  • MX and choc compatible
  • Underglow RGB, Per-key RGB
  • 2 Rotary encoders on thumb clusters

Versions

There are 2 versions of the dilemma, in 2 folders:

  • dilemma, for DIY that requires an additional MCU (eg. kb2040)
  • dilemma_assembled, for PCB assembly

The Dilemma is made for rp2040, so if you go with the DIY version you should source your MCU board accordingly.

Wireless abilities

ZMK does not support input devices at the moment, and QMK does not support BLE.

However, as this is meant to be a portable keyboard, some ground work has been laid with the DIY version:

  • pinout compatible with nice!nano
  • 2 battery connectors footprints: JST, and THT
  • on / off button footprint

At this time, the assembled version does not support wireless.

BOM

The PCB can work on standalone.

Depending on which version you go with, you will need to source different items.

On top of the basic build, you can add a range of options, which require additional components:

  • 3d printed case
  • mods (eg. trackpad)

Both versions of the Dilemma require:

Part name Amount Link / source
Audio jack 2
Button, 4x4x1.5 2

DIY version

On top of the parts mentioned above, you will need:

Part name Amount Link / source
SOD123 Diodes 34 Farnell, Mouser, Aliexpress
Dilemma PCB, DIY, 1.2mm 2 See Release section
RP2040 MCU board 2 KB2040, elite-pi...
Header pins 2*12

Please note, the Dilemma is compatible only with rp2040 boards !

The release section contains the latest gerbers.

Order in 1.2mm thickness.

Assembled version

On top of the parts mentioned above, you will need:

Part name Amount Link / source
Dilemma PCB, assembled 2 See Release section

The release section contains the latest gerbers with BOM and POS files.

Order in 1.6mm thickness.

Trackpad mod

This is the first mod made for the keyboard - so it can function as a standalone input device.

It uses I2C on the DIY version, and SPI on the assembled version.

The DIY version requires removing some resistors from the trackpad:

  • R1
  • R7 and R8 if you are using a microcontroller that runs on 5V

When installing the trackpad mod, you will need:

Part name Amount Link / source
M3 screw, torx, 6mm 4 Conrad
M3x5x5 screw insert 4 Aliexpress
3d printed parts See mechanical folder
40mm cirque trackpad, curved

If building the PCBA version, you will also need:

Part name Amount Link / source
12-position FPC cable, 0.5mm pitch, same side contacts, 100mm 1 Farnell

If building the DIY version, you will also need:

Part name Amount Link / source
SOD123 Resistor, 5kOhms 2
Cables

Cases

Acrylic midplate (v2 only)

This case is only compatible with the assembled_v2 version !

Add an underglow effect and a beautiful view into the PCB with those acrylic midplates.

You will need

Part name Amount Details
3d printed top plate 2 1 left, 1 right
acrylic mid plate 2 Order transparent or frost, 3mm
3d printed bottom plate* 2 1 left, 1 right
M3x4 flat head screw 8
M3x4 chamfered head screw 10
M3x5 female/female spacer 8
M3x5 male/female spacer 2

*the 3d printed bottom plate can be swapped out for a full acrylic bottom plate, or a metal plate for the magnet mod (see following sections).

Acrylic bottom plate

If you are using the acrylic midplate, you can install a full bottom plate. Order the bottom acrylic plates in 3mm thickness.

You will also need to chamfer the M3 holes for the screws to be flush.

Tents - metal bottom plate

This plate enables the use of tripods through magsafe magnets.

Order the metal plates in 3mm thickness. The metal needs to be magnetized !

You will also need to chamfer the M3 holes for the screws to be flush.

You will need:

Part name Amount Details
Metal plates 2 3mm
Tripods 2 Neewer Z flex
Magsafe tripod adapter 2 Amazon/Aliexpress

3d printed thin case (v1 only)

This case is only compatible with the DIY and assembled_v1 versions !

Designed for the minimum footprint possible, while still protecting the PCB.

Part name Amount Link / source
M3 screw, torx, 6mm 6 Conrad
M3 nut 3 Conrad
Anti slip pads, 10x2mm 12 Aliexpress
3d case 1 right, 1 left See mechanical folder

The case is reversible.

It needs to be printed at 0.2mm layer height supportless specifically for the nut inserts suport-less interfaces. If you are doing a different layer height, use supports.

3d printed less-thin case with tenting pucks (v1 only)

This case is only compatible with the DIY and assembled_v1 versions !

Accomodates the Splitkb tenting puck, to be used with a Manfrotto tripod.

There are a range of cases available. See details in the mechanical/cases folder.

Community mods

There are a range of community mods available (hex plates, covers...).

You can find more information in the readme in the mechanical/community mods folder.

Build guide

https://docs.bastardkb.com/bg_dilemma/intro.html

Forks

Others / in progress

The PCB has available connectors for:

  • oled