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MainBoard

philipturner·capacitive-displacement-metrology·Models/MainBoard/MainBoard.kicad_pcb

MainBoard PCB layout, top view — open source board by philipturner
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About the MainBoard PCB

MainBoard 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 12 components from 7 distinct parts.

Other key parts include the AD7745, DAC81404, DAC81401, ISO7761DW and ISO1641DW. By type, the board carries 6 connectors and 5 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.

MainBoard, from the project README
From the project README

Main components on the MainBoard

AD7745DAC81404DAC81401ISO7761DWISO1641DW

MainBoard bill of materials (BOM)

12 components, 7 distinct parts.

QtyPartRefs
1
AD7745
U2
1
DAC81404
U3
1
DAC81401
U4
1
ISO7761DW
U5
1
ISO1641DW
U6
6
Conn_Coaxial
J1, J2, J3, J4, J5, J6
1
Mounting Hole, M2.5
H1

MainBoard 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.

MainBoard: common questions

How big is the MainBoard PCB?

The MainBoard measures 77 × 62.5 mm, has 4 copper layers and is 1.8572 mm thick.

How many components are on the MainBoard?

12 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the MainBoard design files?

From the philipturner/capacitive-displacement-metrology repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MainBoard design in my own project?

Yes, under the terms of its MIT license, which philipturner chose for the repository.

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