Excellent, thanks for the reassurance.Doug Fisher wrote: Mon Jan 25, 2021 FWIW, your curve shape looks generally similar to the one for my 80 watt tube.
Yes, I was surprised that it reached 80W at only 65%, I expected it to be higher. It's strange that the manufacturer does not measure the performance and then include a linearised lookup table in the machine control firmware, that would be my plan if I was making a laser machine to sell - the idea being that 0% would be 0W and 100% would be 80W with a linear relationship between. That's not hard to do in code so I struggle to understand why they don't do it.fred ungewitter wrote: Mon Jan 25, 2021 That's an interesting set of curves. A quick search of the 'net suggests that for your tube power, 28 ma is recommended maximum, although at least one user goes no higher than 25 ma. If I read your graph correctly, 25 ma is 65 percent power and provides 80 Watts. That's impressive that your 80 W tube can provide 80W at a safe current draw for maximum longevity. Good for you!