Watch PCB Prototyping Part 1: Etching and Tin Plating (Hydrochloric Acid, Hydrogen Peroxide, Liquid Tin) in New Channel | Channify

Here's how to make circuit boards at home. This first video covers how to expose, etch and tin plate a PCB. The general process is: 1. Print your masks onto transparencies. If you want to do 10mil traces (6-8mil is possible too, but with more failures) you need at least 1200dpi. 600dpi is not good enough. 2. Expose your board. 3. Develop with a mix of water and sodium hydroxide (NaOH). 4. Etch with a mix of water, hydrochloric acid (HCl) and hydrogen peroxide (H2O2). 5. Tin plate with Liquid Tin. The second video in this series shows how to apply a solder mask, how to solder the SMD components to the board, and finally a demo of the project. This design is a PC microphone amplifier. https://www.youtube.com/watch?v=PdhvXJyXRxg Supplies: 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" I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for me to earn fees by linking to Amazon.com and affiliated sites.