Manual Assembly of a Surface-Mount LED Flasher PCB Using a DIY Solder Stencil

This video demonstrates the manual assembly process that I typically use to build surface-mount printed circuit boards when I have a solder stencil. In this case, I am using a DIY solder stencil that I cut from a 4-mil-thick sheet of mylar using a K40 laser cutter.

Sources for the various supplies that I used:

• Removable double-sided mounting tape: https://www.amazon.com/gp/product/B00...
• Plastic spreader: https://www.amazon.com/Plastic-Body-F...
• Thermally stable SAC305 solder paste: https://www.digikey.com/en/products/d...
• 15-mil-diameter SAC305 wire solder: https://www.digikey.com/en/products/d...

Video describing the process of making the stencil:    • Laser Cutting Quality Low-Cost Solder...  

Video describing the vacuum pick-up tool:    • Low-Cost Vacuum Pick-Up Tool for Surf...  

Video describing the parts sheet:    • Managing Cut Tapes in Manual Surface-...  

Chapters:
0:00 Applying Solder Paste
8:49 Placing Components
19:16 Reflowing the Board
23:47 Through-Hole Soldering the USB-A Connector
26:53 Testing the Board