Sandy Middle
About the Sandy Middle PCB
Sandy Middle is an open source PCB design by jpskenn, published on GitHub under the MIT license. It is a 2-layer board measuring 285 × 73.4 mm, with 41 components from 5 distinct parts.
By type, the board carries 13 diodes and 3 connectors.
It belongs with the keyboards designs in this gallery.
From the project
a Keyboard with key height optimization
Sandy is a keyboard with key height optimization.
Layered PCB will make height differences for each key. This covers the lack of optimization to physical key layout that only adjust x-y direction in a plane.
Sandyは、スイッチの配置を立体的にして高さ方向への最適化を加えた、左右対称レイアウトの60%キーボードです。
平面上のキーレイアウトだけでは最適化しきれない部分を、キーの位置に応じてスイッチを配置する高さを変えることで補っています。
キー割り当て書き換えツールRemapがQMKファームウェアのバージョン 0.22.2以降に対応したことに伴い、新しくビルドしたSandyのファームウェアを公開しました。 参考：Remap supports QMK Firmware 0.22.2 or higher
Sandy Middle bill of materials (BOM)
41 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | CONN_02X02_TOP_BOTTOM Conn_02x02_Top_Bottom | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal_wCable_housing_spare_pin | J1, J2, J3 |
| 12 | Conn_01x01 | TestPoint_THTPad_D2.0mm_Drill1.0mm | EXT_MC0, EXT_MC2, EXT_MC3, EXT_MC4, EXT_MC6, EXT_MC7, EXT_MR1, EXT_MR2 +4 |
| 11 | SW_Push | MXOnly-1U-Hotswap-guide | SW_'1, SW_;1, SW_G1, SW_H1, SW_P1, SW_Q1, SW_R1, SW_R4CenterC1 +3 |
| 2 | SW_Push | MXOnly-1.5U-Hotswap-guide | SW_BS1.5u1, SW_TAB1.5u1 |
| 13 | C81598 D | D_SOD-123_Emphasized_Direction_Line | D1, D2, D3, D4, D5, D6, D7, D8 +5 |
Sandy Middle design files
The KiCad project lives in the jpskenn/Sandy repository on GitHub; these links point at the commit this page was built from.
Sandy Middle: common questions
How big is the Sandy Middle PCB?
The Sandy Middle measures 285 × 73.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Sandy Middle?
41 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Sandy Middle design files?
From the jpskenn/Sandy repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Sandy Middle design in my own project?
Yes, under the terms of its MIT license, which jpskenn chose for the repository.
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