PapaniaP / kb-wave

A small and reversible elite-c based keyboard inspired by the Ferris Sweep.

Wave

_{Wave v0.0.1 + MBK Blank Keycaps}

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• What Is It
• Features
• Components List
  • Keyboard
  • Plates Kit
• Ordering the PCBs
  • Keyboard
  • Plates kit
    • Switch Plates
    • Back Plates
• QMK Firmware

What Is It

The Wave is a small, reversible keyboard inspired by the Ferris, the Ferris Sweep, the Swoop and the Sweep36. It aims to solve a few issues I found with the keyboards (see Features).

Features

• Choc V1 switches
  • The switches can be soldered, or hot swapped using either Mill-Max or Kailh hot swap sockets
• Choc spacing (supports MBK keycaps)
• 1.5u thumb key support
• Diode-less build
• Reversible PCB
• USB-C
• Mini DIN 4 (S-Video) connector used to connect both halves of the keyboard
  • The issue with TRRS connectors is that they are not hot swap; disconnecting the cable while the keyboard is powered via usb risks damaging/breaking the controller by shorting the VCC pin to a GND or data pin.
  • The Mini DIN 4 connector solves this issue and is readily available on the market, being the cable used for S-Video.
• Switch plate and back plate available

Components List

Keyboard

Here are the required components to build the Wave:

• 2x Keyboard PCBs (PCB manufacturers usually sell them in packs of minimum 5)
• 2x Elite-C V4 controllers
• 36x Choc V1 switches
• 36x MBK compatible keycaps
• 2x Mini DIN 4 Jack (MDJ-004-FS)
• 1x Mini DIN 4 (S-Video) cable
• 1x USB-C Cable to connect to computer

Here are the optional components to build the Wave:

• Hot swap sockets, either:
  • 36x Kailh hot swap sockets for Choc switches
  • 72x Mill-Max hot swap sockets (preferably 3305 or 7305 sockets as they have a thinner profile)
• 2x reset switches (B3U-1000P-B)
  • The B3U-1000PM, B3U-1000P-B and B3U-1000PM-B variants will work as they have the same footprint.
• 4x+ Rubber feet/bumpers (RBS-12BK)

Plates Kit

• 2x Switch plate PCBs
• 2x Back plate PCBs
• 5x M2 7mm spacer (970060244)
• 10x M2 3mm screws

Ordering the PCBs

Keyboard

_{Wave PCB}

To order the keyboard PCB, the following settings are recommended¹:

Detail	Value
Gerber file	Wave_0.0.1.zip
Base material	FR-4
Layers	2
Different design	1
Delivery format	Single PCB
PCB thickness	1.6mm
PCB color	(Personal preference)
Silkscreen	(Personal preference)
Surface finish	(Personal preference)2
Outer copper weight	1oz
Via Covering	Tented
Board Outline Tolerance	±0.2mm(Regular)
Confirm production file	No
Remove order number	Yes
Gold Fingers	No
Castellated holes	No

Plates kit

You will need to order two different PCBs; the switch plate one and the back plate one.

Switch Plates

_{Wave Switch Plate PCB}

_{Wave v0.0.1 Switch Plate}

To order the switch plate PCB, the following settings are recommended¹:

Detail	Value
Gerber file	Wave_Switch_Plate_0.0.1.zip
Base material	FR-4
Different design	1
Layers	2
Delivery format	Single PCB
PCB thickness	1.2mm
PCB color	(Personal preference)
Silkscreen	(Personal preference)
Surface finish	(Personal preference)2
Outer copper weight	1oz
Via Covering	Tented
Board Outline Tolerance	±0.2mm(Regular)
Confirm production file	No
Remove order number	Yes
Gold Fingers	No
Castellated holes	No

Back Plates

_{Wave Back Plate PCB}

_{Wave v0.0.1 Back Plate}

To order the back plate PCB, the following settings are recommended¹:

Detail	Value
Gerber file	Wave_Back_Plate_0.0.1.zip
Base material	FR-4
Different design	1
Layers	2
Delivery format	Single PCB
PCB thickness	1.6mm
PCB color	(Personal preference)
Silkscreen	(Personal preference)
Surface finish	(Personal preference)2
Outer copper weight	1oz
Via Covering	Tented
Board Outline Tolerance	±0.2mm(Regular)
Confirm production file	No
Remove order number	Yes
Gold Fingers	No
Castellated holes	No

QMK Firmware

The latest firmware can be found on the official QMK repository.

Footnotes

1. Settings are for JLCPCB, but should be similar with other manufacturers. ↩ ↩² ↩³

2. ROHS or lead-free options should be preferred (LeadFree HASL). ↩ ↩² ↩³