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Thanks :) @laserchick, it is tool steel. I use it as an anvil or a very heavy paper weight ;)

The DIY tripod is very sturdy but also pretty big. I wanted to make a more pocket sized one for camping trips. And this was the result. The ruler is 6 inches for size. My hand in comparison Camera mounting set for cctv use. Used the cctv cam set for the adjustable swivel thingy and the...

I just recently noticed having floaters on both eyes just a few weeks ago, but only small ones. I haven't played with my lasers for a while nor got hit by any so that rules it out. No physical trauma that I can remember too. I must be getting old then.

Please use the edit button. Don't double and even triple post, it is frowned upon here.

This. But you can get IR illuminators from CCTV sellers or ePay. Those will be in a complete waterproof housing with mounts and power supply. Just mount them just outside the window of your kids' room and point it at the cam. The IR light flood will saturate the cam and he won't see a thing in...

A 3 Watt laser is different from a 3 watt LED. Since AFAIK laser diodes are rated on optical power meaning their light output. LEDs are rated at input power, the power they take in. And then there's the light source size. The light emitting area of an LED is gargantuan compared to a laser...

Thanks guys. Actually, I had the middle part turned on the lathe to have a cone shape on top. Makes it look nicer :)

I find this scary. No one seems to mention it and that is even scarier. So you don't mind frying your friends' eyeballs as the specular reflection from burning objects send high power IR to their eyes? Being not able to see the beam is more dangerous as you have no idea how much laser power...

Re: SuperBoost Drive (7+ amp boost driver?!) I got a DC clamp meter. I can measure up to 400A without introducing any losses. ;)

Re: SuperBoost Drive (7+ amp boost driver?!) If I remember correctly, they are rated for 10A discharge.

We had a lot of those before and they kept on blowing thermal fuses. Must be the hot tropical climate.

More please :) I think you probably already know, but for those that don't, Mike also has a wide collection of glass stuff Mike's Electric Stuff Something I took a while ago... A 35W automotive HID during cooldown :)

I believe MOTs are designed to run full load all the time which prevents the saturation. Have you removed the shunts?

Re: The "Clean Edge" Driver - 2.85A driver for pushing 462s (478nm hit so far) You're welcome. The bench setup is still there so if you want me to test something specifically. I may also be able to test repeated on-off-on cycling without contact bounce at different rates but that would take a...

Not sure what library RHD used for the original circuit. When I use the default libraries in Eagle, the hole sizes are just right so I didn't bother to check them.

Which holes?

Re: The "Clean Edge" Driver - 2.85A driver for pushing 462s (478nm hit so far) Part two: Startup and ripple measurements The dummy load is a series string of 4 1N5401 diodes and a 0.5 Ohm 4 terminal precision resistor (where I tapped off the signal for the oscilloscope) Yellow trace is driver...

Re: The "Clean Edge" Driver - 2.85A driver for pushing 462s (478nm hit so far) Part one: Efficiency testing. In the pics, the various meters measure the following points: Yellow DMM = driver input voltage Red DMM = driver input current Red digit meter = driver output voltage Blue digit meter =...

I see you finally had them made. :beer:

The three capacitors in series might be a fire hazard. Ceramic caps won't share the voltages equally as you expect unless there are balancing resistors across each. When one fails short due to impurities of the ceramic or due to micro cracks, the others start to see higher voltages. If they...