On my cnc pantograph, I have a red laser of 300mW. The driver has control ttl. Driver 5V supply, delivers 20mA of standby current without TTL signal. If I use the 3-5V TTL signal, the driver delivers 420mA and the radius becomes blinding and 300mW. With the standby current, you see a thin red line. I usually watch and adjust the fire to see subtle and brilliant. Then put the goggles and launch the process, driven by seganle ttl. I run the risk? There is a safer method for the focus? Thanks
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