

Ckw12 top
1U horizontal rotary encoder
- Size
- 18 × 18 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 5
- Pads
- 17
- Tracks, vias
- 45, 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Apr 2025
- Updated
- 8 Nov 2025
Overview
Ckw12 top is an open-source printed circuit board by kumamuk-git, from the kumamuk-git/CKW12 repository on GitHub. It is a 2-layer board of 18 × 18 mm with 8 parts on 5 nets, routed with 45 tracks and 5 vias.
Its parts include 5 connectors and 3 switches.
README
README.mdParts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Conn_01x01_Pin | CKW12:my_mount_hole_M2_pad | J1, J2, J3, J4 |
| 1 | CKW12 | CKW12:CKW12 | SW21 |
| 1 | Conn_01x01_Pin | TestPoint:TestPoint_Pad_D2.0mm | J5 |
| 1 | RotaryEncoder | CKW12:EC05E1220202 | SW1 |
| 1 | SW_DPST_x2 | CKW12:SKQYACE010 | SW2 |
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Questions
How big is the Ckw12 top PCB?
It measures 18 × 18 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ckw12 top use?
8 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Ckw12 top KiCad files?
From the kumamuk-git/CKW12 repository on GitHub, at the commit this page was made from: the board is pcb/top/ckw12_top.kicad_pcb and its schematic pcb/bottom/ckw12_bottom.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ckw12 top design in my own project?
Its repository states no licence, so its author keeps all rights: ask kumamuk-git before reusing the design.

