30W Laser Burning Stone + New CC Driver + Fiber Termination Lapping

Microscope: https://www.banggood.com/custlink/Gv3... Lapping paste: https://www.banggood.com/custlink/GK3... Behind the scenes:   / marcoreps   https://github.com/marcoreps/laser_dr... In this episode of the laser series I am showing some updates and ideas for the constant current laser, that were inspired by you! One particularly interesting idea is to control the efficient DC-DC converter with an op-amp, eliminating inefficient linear regulation completely. But before the drivers can be tested I have to fix the termination of the optical fibers. Those were burnt and unusable. Even when tediously lapping the fibers manually, some special equipment was neccessary: Lapping film: http://bit.ly/2t72scr Vacuum pump: http://bit.ly/2JBq4kH