• Repository Info

• Images

• Schematic

• PCB

• Bill of Materials

• Development

Repository Info

• Project Name: prism-pcb
• Synopsis: PCB for each prism in the Voigts Lab honeycomb maze.
• Documentation Version: 1.0.0
• Pcb Version: 1.0
• Enclosure Version: 1.0
• Supplemental BOM Version: 1.0
• Release Date: 2024-07-16
• Creation Date: 2024-06-27
• Kicad Version: 7.0.11
• License: BSD-3-Clause
• URL: https://github.com/janelia-kicad/prism-pcb
• Author: Peter Polidoro
• Email: peter@polidoro.io
• Copyright: 2024 Howard Hughes Medical Institute
• References:
  • cluster-pcb
  • TMC5130

Images

Schematic

./documentation/schematic/prism-pcb.pdf

PCB

Bill of Materials

Board

Item	Synopsis	Manufacturer Part Number	Manufacturer	Quantity	Reference(s)	Package
1	50V 3.3uF	FS32X335K500EGG	PSA(Prosperity Dielectrics)	1	C301	1210
2	CAP CER 0.1UF 100V X5R	GRM155R62A104KE14D	Murata Electronics	6	C302 C401 C403 C404 C407 C410	0402
3	CAP CER 1UF 25V X5R	GRT155R61E105KE01D	Murata Electronics	2	C303 C304	0402
4	CAP CER 0.022UF 100V X7R	GCM188R72A223KA37D	Murata Electronics	1	C402	0603
5	CAP CER 0.47UF 35V X5R	GRT155R6YA474KE01D	Murata Electronics	1	C405	0402
6	CAP CER 2.2UF 35V X5R	C1005X5R1V225K050BC	TDK Corporation	1	C406	0402
7	CAP CER 2.2UF 100V X7T 0805	GRM21BD72A225KE01L	Murata Electronics	2	C408 C411	0805
8	CAP ALUM 100UF 20% 50V SMD	EEE-FTH101XAV	Panasonic Electronic Components	2	C409 C412	SMD_D10xL16.8mm
9	CONN FFC FPC BOTTOM 10POS 1MM RA	1.0K-FX-10PWBG	HDGC	1	J301	SMD P=1mm
10	CONN HEADER SMD R/A 4POS 1.5MM	0874380443	Molex	1	J401	SMD
11	RES SMD 100 OHM 1% 62.5mW	0402WGF1000TCE	UNI-ROYAL(Uniroyal Elec)	1	R301	0402
12	RES SMD 2.2 OHM 5% 1/10W	ERJ-2GEJ2R2X	Panasonic Electronic Components	1	R401	0402
13	0.12 750mW Current Sense Resistor	KRL1632E-M-R120-F-T5	SUSUMU	2	R402 R403	1206
14	DC-DC 5V 600mA Output 3-65V Input	TPSM365R6V5RDNR	Texas Instruments	1	U301	QFN-11(3.5x4.5)
15	IC MTR DRV BIPOLAR 5.5-46V	TMC5130A-TA	Analog Devices Inc./Maxim Integrated	1	U401	TQFP-48-EP(7x7)
16	XTAL OSC XO 16.0000MHZ HCMOS SMD	ECS-2520S33-160-FN-TR	ECS Inc.	1	X401	SMD2520-4P

Supplemental

Item	Synopsis	Manufacturer Part Number	Manufacturer	Quantity	Cost	Total
1	CABLE FFC/FPC 10POS 1MM 12IN	Molex	0152670265	1	2.27	2.27
2	FAN AXIAL 25X8MM 5VDC WIRE	255M	ebm-papst Inc.	1	33.47	33.47
3	Hex Standoff Threaded M2 Brass 8.00mm	970100244	Würth Elektronik	3	0.55	1.65
4	MACH SCREW PAN HEAD PHILLIPS M2 12mm	MPMS 002 0012 PH	B&F Fastener Supply	3	0.32	0.96
5	MACH SCREW PAN HEAD PHILLIPS M2 5mm	MPMS 002 0005 PH	B&F Fastener Supply	3	0.17	0.51
	Supplemental BOM Version: 1.0				Total	38.86

Development

Install Guix

Install Guix

Generate Output from KiCad

Images

1. 3D Viewer

   Output directory: ../documentation/fabrication/gerbers

   • pcb.png
   • top.png
   • bottom.png
   • front.png
   • back.png
   • left.png
   • right.png

2. Trim

   make trimmed-images
   

3. Schematic PDF

   File -> Plot

   Output directory: ../documentation/schematic

   • Output format PDF
   • Page Size = Schematic size
   • Plot drawing sheet
   • Output mode = Color
   • Color theme = KiCad Default
   • Default line width = 0.006 in

4. Schematic SVG

   File -> Plot

   Output directory: ../documentation/schematic

   • Output format SVG
   • Page Size = Schematic size
   • Plot drawing sheet
   • Output mode = Color
   • Color theme = Solarized Light
   • Default line width = 0.012 in

5. PCB SVG

   Add Edge.Cuts, holes, and dimensions to User.Drawings

   File -> Plot

   Output directory: ../documentation/pcb

   • Plot format SVG

   • Include Layers

     • User.Drawings
     • F.Silkscreen
     • B.Silkscreen
     • F.Fab
     • B.Fab

   • Plot on All Layers

     • Edge.Cuts

   • Plot footprint values

   • Plot reference designators

   • SVG Options

     • Precision = 4
     • Output mode = color

     make cropped-svg

Gerber Files

File -> Fabrication Outputs -> Gerbers (.gbr)

Output directory: ../documentation/fabrication/gerbers

Include Layers:

• F.Cu
• F.Paste
• F.Silks
• F.Mask
• B.Cu
• B.Paste
• B.Silks
• B.Mask
• Edge.Cuts - (contain the board outline/cutouts.)
• In1.Cu, In2.Cu … - (needed for 4/6 layer designs.)

Options:

• Select Plot reference designators, otherwise designators will not appear on silkscreen layers.
• Select Check zone fills before plotting
• Select Use Protel filename extensions, this is recommended as JLCPCB prefers Protel filename extensions.
• Select Subtract soldermask from silkscreen, this ensures no silkscreen on pads.
• Coordinate format 4.6 unit mm

Drill and Map Files

Options:

• Excellon drill file format
• Check Use alternate drill mode for "Oval Holes Drill Mode".
• Check Absolute for "Drill Origin".
• Check Millimeters for "Drill Units".
• Check Decimal format for "Zeros Format".
• Gerber X2 map file format

Zip gerber files

zip gerbers.zip gerbers/*

BOM

Generate BOM from schematic editor using blank command line to create bom xml file.

POS

File -> Fabrication Outputs -> Component Placement (.pos)

Output directory: ../documentation/fabrication/

Settings:

• Format = CSV
• Units = Millimeters
• Files = Single file for board
• Do not use drill/place file origin

Modify pos files:

• Ref -> Designator
• PosX -> Mid X
• PosY -> Mid Y
• Rot -> Rotation
• Side -> Layer

Edit metadata.org

make metadata-edits

Tangle metadata.org

make metadata

Edit project

make kicad-edits
exit