MainBoard2
philipturner·capacitive-displacement-metrology·Fabrication/Stencil/MainBoard2.kicad_pcb
About the MainBoard2 PCB
MainBoard2 is an open source PCB design by philipturner, published on GitHub under the MIT license. It is a 4-layer board measuring 77 × 62.5 mm, with 9 components from 4 distinct parts.
Other key parts include the ISO7761DW and ISO1641DW. By type, the board carries 6 connectors and 2 ICs.
From the project
Objective: Finish a project that has dragged on for 14 months.
Objective: Finish a project that has dragged on for 14 months.
Deadline: April 31, 2026 for creepless imaging of graphite
$80,000 worth of wire transfers have hit the bank. I now have enough financial security to proceed with hardware work.
The first step is ensuring I can be paid a full-time salary. Comply with US tax laws, SEC regulations, etc. I predicted the exact numbers before going through the legal boilerplate and setup.

Main components on the MainBoard2
MainBoard2 bill of materials (BOM)
9 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ISO7761DW | SOIC-16-Wide | U5 |
| 1 | ISO1641DW | SOIC-16-Wide | U6 |
| 6 | Conn_Coaxial | Molex_MCX | J1, J2, J3, J4, J5, J6 |
| 1 | Mounting Hole, M2.5 | Keystone_24929 | H1 |
MainBoard2 design files
The KiCad project lives in the philipturner/capacitive-displacement-metrology repository on GitHub; these links point at the commit this page was built from.
MainBoard2: common questions
How big is the MainBoard2 PCB?
The MainBoard2 measures 77 × 62.5 mm, has 4 copper layers and is 1.8572 mm thick.
How many components are on the MainBoard2?
9 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the MainBoard2 design files?
From the philipturner/capacitive-displacement-metrology repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MainBoard2 design in my own project?
Yes, under the terms of its MIT license, which philipturner chose for the repository.
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