Oops!
I forgot to turn on the water, the ring on the exit mirror detatched and I get a few seconds from cold before the mirror overheats and the beam starts to wander
40W 70cm tubes are not expensive but it is trying to work, China is on Spring break and this tube is aligned to the optical path. I feel inclined to try and fix it.
I see two options, either superglue or thermal transfer compound followed by a bandage coated in epoxy resin?
I will now go and hardwire the pump so I don't have to remember to turn it on :nono: