DIY Comparatron Helps Trace Tiny, Complex Objects

Hackers frequently find themselves reverse-engineering or interfacing to existing hardware and devices, and when that interface needs to be a physical one, it really pays to be able to take accurat…

Using A Laser Cutter To Replicate An Optical Comparator Screen

Precision instruments often contain specialized components that are essential to their function, but nearly impossible to replace if they fail. [Andre] had just such a problem with an optical compa…