Here's how to make circuit boards at home. This second video covers how to apply dry film solder mask (Dynamask 5000), hand solder the SMD components, and test the PCB. The general process is:

1. Print your mask onto a transparency.
2. Expose your board.
3. Develop the mask.
4. Expose the board again.
5. Bake the board for final cure.
6. Solder the components to the PCB.
7. Test for short circuits and proper functionality.

The first video covers how to expose, etch and tin plate a PCB:
   • PCB Prototyping Part 1: Etching and T...  

Exposure Kit http://amzn.to/2lHQAfe
Copper Clad Board, Presensitized http://amzn.to/2ma0M0Z or http://amzn.to/2lNrlbL
Transparencies for a laser printer http://amzn.to/2oWVOSR
Sodium Hydroxide http://amzn.to/2oKAwvL
Hydrogen peroxide (35%) http://amzn.to/2oKsZx6
Liquid Tin http://amzn.to/2lHR8BP
Laminator http://amzn.to/2kOGycW
Sodium Carbonate http://amzn.to/2lI18Lp
Gram Scale (you need at least 0.1g resolution) http://amzn.to/2qqUHuY
Tin Snips http://amzn.to/2oKNoSy
Hydrochloric Acid: go to a home improvement or pool store, it's very expensive online.
Solder Mask: search eBay for "dry film solder mask"

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