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Hi Does anyone have any experience of putting a moving coil ammeter in series with the laser diode. (using very short leads) Is this a bad idea? John

Hi Joe I have ordered a new LD and the same driver as yours. I have the same requirements as yourself ie etching wood on my CNC. thanks John

Thanks for that. I'll be wiser next time.

Hi Larry I think you are confusing me with another member "jameadows" My electronics were OK I think. Only change I made was adding 6 feet of twin cable to the LD which was heatsinked. John

What a great site! My experience was very similar to jameadows. Home brew LM350 driver on bench worked fine. I then bought a 2A driver with TTL modulation, also to drive from CNC. All set up on bench and working fine. I then had the great idea of keeping all the electronics adjacent to my PC and...