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Corne Cherry V3 Hotswap Split Ergo 40% Kit

(3 customer reviews)

38.7242.35

Build your very own hotswap split ergo 40% custom keyboard from scratch!

Easy to build, uses Pro Micro-compatible controllers.

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  • Layout *

  • Switch Plate Material *

  • 3 mm with a FR4/POM switch plate / 2 mm with an acrylic one

  • 3 mm with a FR4 switch plate / 2 mm with an acrylic one Required with a mid-layer

  • Fills the gap between the PCB and the bottom plate for neater look and improved sound & feel Requires switch plate foam

  • Mid Layer *

    Fills the gap between the PCB and the bottom plate for neater look and improved sound & feel

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Corne Cherry Hotswap Split Ergo 40% Keyboard Kit

Designed by Kosuke Adachi (a.k.a. foostan). The designer receives a portion of the proceeds from every sale.

This is version V3.4 modified by 42. Keebs to include a power switch and battery connector for wireless operation and native nice!view support.

Build your very own custom split keyboard from scratch!

  • Split 12×3 + 6 (42 keys) 40% ortho/ergo layout
  • Supports Cherry MX-compatible switches
  • Uses Kailh/Gateron MX hotswap sockets
  • Supports in-switch RGB LEDs and RGB underglow (RGB LEDs available as an add-on)
  • Optional OLED screens
  • Includes a sliding SMD power switch and contacts for a battery on the PCB (no connector needed, battery to be soldered directly to the PCB for simplicity)
  • V3.2 PCBs support the 5-column (36-key) layout again (by snapping off the 6th column)
  • V3.3 PCBs support the power-efficient nice!view screens natively
  • V3.4 PCBs have solder bridges to select various combinations of nice!view and RGB support
  • Fairly easy to build – based on Pro Micro controllers, but uses SMD diodes
  • Tinned lead-free finish, black solder mask

⚠️💀 Warning: Never plug/unplug the TRRS cable while the keyboard is powered! It could damage the data pin of the controller. 💀⚠️

Build guide in the GitHub repository

Kit contents

  • 2x main PCB
  • 44x SMD diode (42 + 2 spare)
  • 42x Kailh hotswap socket
  • 2x TRRS socket
  • 2x SMD power switch
  • 2x Reset switch
  • Brass standoffs and screws
  • FR4 version:
    • 2x FR4 switch plate
    • Optional 3 mm switch plate foam
    • Optional 3 mm foam mid-layer
    • 2x bottom plate made from PCB material (FR4)
    • 2x clear acrylic covers
  • FR4 + acrylic version:
    • 2x FR4 switch plate
    • Optional 3 mm switch plate foam
    • Optional 2/3 mm foam/3 mm acrylic mid-layer
    • 2x 3 mm acrylic (optionally tenting) bottom plate
    • 2x acrylic covers (in a matching colour + clear ones in case of dark/opaque acrylic)
  • Acrylic version:
    • 2x 3 mm acrylic switch plate
    • Optional 2 mm switch plate foam
    • Optional 2/3 mm foam/3 mm acrylic mid-layer
    • 2x 3 mm acrylic bottom plate
    • 2x acrylic covers (in a matching colour + clear ones in case of dark/opaque acrylic)
    • 16x acrylic tenting spacers (tenting version only)

Required parts not included in the kit

  • 2x Pro Micro compatible controllers (Frood, nice!nano etc.)
  • 42x Cherry MX-compatible switches
  • TRRS cable (unless using nice!nanos)

Optional parts not included in the kit

  • OLED screens
  • nice!view screens
  • 12x WS2812B/SK6812 (5050) underglow RGB LEDs
  • 42x SK6812MINI-E in-switch RGB LEDs
Weight 0.26 kg
Plate Type

FR4 (PCB material), Acrylic/POM Standard, Acrylic/POM Tenting, FR4 + Acrylic Standard, FR4 + Acrylic Tenting

Colour

Black, White, Black v3.0.1

Stock Status

Coming Soon

3 reviews for Corne Cherry V3 Hotswap Split Ergo 40% Kit

  1. Vincent De Borger (verified owner)

    Very nice kit with all the necessary components. Petr was very helpful trying to figure out what I exactly needed to order.

  2. Oleh Demchuk (verified owner)

    Nice kit and good quality soldering. I am really happy with it

  3. alexandre97costa@gmail.com (verified owner)

    Great kit, with all the necessary components plus some extra. The default pins for the controller need some sanding to fit the mill max holes, but it just needs a bit of sanding, not a big deal. The support from Pete is excellent and I’m really happy with how it turned out.

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