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I plan to defocus a laser so it is under the thermopile maximum power density spec and trust that it is also well under the damage threshold for the lens (unless I can find a spec on that). Then measure the power using a LaserBee AX3 LPM (5W) with and without the glasses. The measurement with...

I'm always on the lookout for good internal and external springs. Did you mean to type existotem? Unfortunately I didn't see any springs for sale by themselves.

This question comes up often. First, it may vary by country. The answers for US based PayPal customers can be found in PayPal's Resolution Center. Here are some screenshots explaining the dispute process and providing some timelines for people in the US. In the first screenshot, the link...

They look interesting. I bought a pair. I also have an LPM. Will attempt non-destructive testing.

Indeed. Thanks. Quite the extended family here. :yh:

If you're not tracking it with USPS, try their website. I found they have much more data and update more often than other/foreign carriers coming into the USA, especially for goods from China.

I just threw out a brand new one I used half a dozen times and 4-5 boxes of accessories. I couldn't get used to it and fall asleep. $300 sounds about right. Double that with the accessories. Health insurance covered everything. I switched to taking more naps (but had to wait until I retired).

Yes. Like catnip. But they're all afraid of the blues (we have 5 cats) and it's worse with lower wavelengths, i.e. really really afraid of 405nm, normal afraid of 450nm. I looked for a color response curve for cats but didn't find anything (thought maybe the lower blue wavelengths were really...

I would not have guessed that :thinking:. And now that I see it, it is the obvious choice (well except for a snarky response :na:). Hindsight 20/20 or better yet, good thing I wasn't a detective :whistle:.

My avatar. Didn't play with red so went looking for another color and found a DPSS green @ 50mW. Didn't take long to find LPF, get several custom built lasers and hosts, and learn how to make/fix them myself. This is my first forum too.

Doesn't really matter either way IMO. If he (or anyone else) wants to screw someone later, they'll find a way. He struck me as too smart to use the same name anyway.

Thanks. Laughter is the best medicine.

Re: what parts should i use to burn math and pop balloons ? In your title, did you mean meth instead of math as in trimethyl borate in methanol solution that StyroPyro uses in his videos to get a green flame (it's his 'whoa' at the end that gets me every time)...

Sorry ... err ... maybe not so much :na:

Yes. Clicked on the shortcut a second time (not a double-click). i.e. click once, wait 10+ seconds, if the page still hasn't loaded, click again.

I decided to try and simply re-click the link and presto, the second time works virtually all the time. Is that a clue?

Thanks for the quick replies everyone. I added a speed test picture to the original post. Connection speed is delivering what I'm paying for, well at least for file transfers. It happens usually late afternoon through early evening. When everyone gets home from school and work I suppose. I...

Thanks. I'm sure he took some stories with him. Thanks. Look forward to hearing from you. PM anytime.

It's been this way for just the last couple weeks, it's been fine for(ever) before that. Off and on. Computer seems to be OK, no updates recently (Win-7/Chrome). Network speed tests check out ok but Frontier just took over for Verizon FIOS (phone/TV/internet) and I have noticed some jitter...

We are on the hunt for "Planet Nine" although researchers say it is not Nibiru. "... astronomers Konstantin Batygin and Mike Brown, both of whom are based at the California Institute of Technology in Pasadena, inferred the planet's existence based on the strange orbits of a half dozen small...