Earlier this year, I bought one of those K40-style laser machines that was listed at a ridiculously low price, and it arrived broken. Well, let me qualify that: the laser tube and the power supply ...

The inexpensive Chinese K40 laser cutter has become the staple of many a small workshop within our community, providing a not-very-large and not-very-powerful cutter for a not-very-high price. As ...

He feels “ K40 has always been the leader in stealth radar detection and laser defense systems. The Expert Controller properly fits in locations where the standard controller simply does not. This ...