Alroy of Voltera talks about their dual-layer circuit board printer.
Forget radar, use lasers instead. Soon you can buy low-cost high-tech LIDAR sensors for your robot projects!
Now you can include a computer in your project super cheap!
Instead of soldering LED lights one by one, start using LED strips! There are easy to use, if you know how:
This is probably the easiest magnetic propulsion system in existence, and so easy to build!