PCB Reverse enginnering : 4 layers

After successfully reverse engineering a two-layer board, I wondered: can I do the same with a four-layer board?

I chose a four-layer board with larger components: SMD resistors and SMD capacitors no smaller than 0805.

The board is automotive-grade: for AdBlue pump control.

For this project, I used Sprint Layout 6.0 — I didn't use Inkscape for the design.

Unfortunately, so far I haven't been able to locate the files I created with Sprint Layout 6.0.

I'm attaching photos. The board is 4-layer and quite thick: it took quite a bit of sanding to reach the inner layers.

Layer 1 - TOP , with components.

Layer 1 - TOP , with components and with the component designations.

Layer 1 - TOP , without components.

Layer 1 - TOP , with the component designations.

Layer 2 - Inner layer.

Layer 3 - Inner layer.

Layer 4 - BOT , with components.

Layer 4 - BOT , with components and with the component designations.

Layer 4 - BOT , without components.

Layer 4 - BOT , with the component designations.

Components : TOP and BOT .

Components : TOP and BOT + component designations.

Components : TOP and BOT , wthout picture : component designations.

Next project will be 4 layers pcb with 0402 compоnents and drawn layers on SVG format.

Board Type :		GerberFile :
Layer :		Dimensions :
PCB Qty :	5 40 200 500 1500 4500 7500 10 50 250 600 2000 5000 8000 15 75 300 700 2500 5500 20 100 350 800 3000 6000 25 125 400 900 3500 6500 30 150 450 1000 4000 7000	Different PCB Design
PCB Thickness :		PCB Color :
Surface Finish :		Castellated Hole :
Copper Weight :	1 oz	Production Time :
Total: US $
As a sharing platform, our community will not bear responsibility for any issues with this design and parameters.

PCBA Qty:		BomFile:
NO. OF UNIQUE PARTS:		NO. of Components:
Country:		Shipping Way:
Assembly Cost: US $
As a sharing platform, our community will not bear responsibility for any issues with this design and parameters.

3dPrintingFile :		Size :
Unit :		Volumn :
3D Printing Qty :		Material :
Total: US $12.99
As a sharing platform, our community will not bear responsibility for any issues with this design and parameters.

Acrylic Type :		AcrylicFile :
Dimensions:		Engrave:
Acrylic Qty :	5 40 200 500 10 50 250 600 15 75 300 700 20 100 350 800 25 125 400 900 30 150 450 1000	Acrylic Thickness:
Acrylic Color:		Total: US $12.99
As a sharing platform, our community will not bear responsibility for any issues with this design and parameters.

CNC Milling File :		Size:
Unit:		Volumn:
CNC Milling Qty :		Material:
Type of Aluminum:		Surface Finish:	None
Tolerance:	Back to Upload File	Surface Roughness:
Total: US $12.99
As a sharing platform, our community will not bear responsibility for any issues with this design and parameters.

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