Djozz, I was thinking about those spherical steel domes someone linked some pages ago.
Perhaps it would be possible to drill a hole in the steel, polish the inside until it was a mirror, then electroplate it in aluminum? Steel makes for a pretty bad reflector, but if I manage to electroplate it with aluminum, it might work well enough. Polishing it would be quite the task, though.
Teacher, I doubt I will find anyone with the know-how and tools to do that where I live, but I suppose I can ask around.
On another mod-related note, I got another mail from optolife telling me the A037 lens will be shipped once finished (In around a month).
Maybe the guys at optolife would be willing to cut a hole into their projector lens? They should have the tools required to cut glass, for obvious reasons. If I wanted to ask them, which reflector would be the better choice for a makeshift wavien collar? How big should the hole be?
Omg. I’ve read the first 322 posts and can’t see myself getting through another 6000 to find out the final design, and am loving the discussion. But please, can someone point me to the post number with a “final spec”, or a close to final for this light? Please and thank you!
FYI… I charge my radio control helicopter batteries at 5c a lot, and haven’t had any issues. The better batteries’ get warm, but we’re talking 105 deg F, not much hotter. They are way hotter when they come out of a trex550 flying hard -
wondering if the radio controlled helicopter batteries are Li-ion or Li-Po? Haven’t seen one with Li-ion to my knowledge…
While it may work to charge at 5C, it may also be greatly reducing the life of the cells. Most of our high discharge Li-ion’s have a 300 cycle life estimation, where Li-Po is usually 1,000. Charging at such a high rate would effectively cut life expectancy in half or even worse. Recommended charge rates for typical Li-ion is 0.6C, with the newer chemistry being able to take up to 2C. Lot of variables at play, of course.
Hobby RC packs are the pouch LiPOs, not cylindrical.
LiPOs also have only a few hundred cycles of lifespan, not anywhere near 1000 (except for the turnigy graphene ones which someone tested to have over 1k cycles, which exceed pretty much every other lipo on the market)
That’s what I though Zozz, and those can take a 5C charge that will destroy most Li-ions.
Edit: I know we have a large audience, so let me be clear on this. A 1C charge rate would be equal to the cells’ capacity, say a 2500mAh cell would be charged at 2.5A if charging at 1C. So, a 3400mAh cell at 5C would be taking a massive 17A charge rate! This is a definite matter of concern! In other words… NO! Don’t do this! A 0.6C rate is recommended for the longest life of the cells, so a 3400mAh cell should be charged at 2A for best life expectancy. (2500mAh at 1.5A max)
I know this has been talked about before in previous posts but can’t seem to find it. I need to buy batteries for the GT. What are the best ones to buy and where can I find them. Thank you in advance for the help.
I hope TA hasn’t gotten fed up with us here. I noticed he hasn’t posted in this thread since all the battery hoohaa. He has more flashlight Electronics knowledge in the tip of his pinky finger than I do in my entire body. Without people like him and the other team members here, I would have absolutely no hope of enjoying a work of art like the Gigga Thrower. The more information I read about other expensive long range thrower flashlights and compare it to what the GT is capable of, the more excited I get. The nice led tint is just icing on an already delicious cake. Sorry, it’s lunch time here and food references keep popping into my head! :sunglasses:
Hmmmmm…… Your right, TA has been absent it seems. I hope everything is OK with him.
I miss his thought provoking & knowledgeable posts. I too have learned much from them.Hopefully he will show up again soon…. real soon.
