Also I wanted some verification of my laser driver circuit before connecting anything expensive to it.
Fiber cleaver: https://goo.gl/Rg32BF Pirl Charger: https://www.pirlcharger.com/ 2$ JLC PCB service: https://jlcpcb.com/ Siglent PSU: https://www.welectron.com/Siglent-SPD3303X-E-Benchtop-Power-Supply Patreon: https://www.patreon.com/marcoreps Lapping film set: https://goo.gl/KFxLKB In this video I am looking at a better USB charger that can easily power 4 Raspberry Pis. Since it is a preview unit for a future Kickstarter campaign, some minor problems are allowed. I have also designed, assembled and tested a constant current driver for the 30W fiber coupled laser and am hoping for some feedback!