Yes, this is correct.
Nope, more threads on top for the bezel to secure the lens and reflector. Unless the reflector is going to be threaded in from inside, or a retaining ring will hold it in. Either way, still gotta have an opening large enough to fit the 120mm reflector down into the head. 
Bezel will be threaded also won’t it???
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Edit: You beat me to it Dale……
Good catch, totally forgot about that.
No it’s a mixture of gasses.
No, air is considered a “fluid”. Look it up if you don’t believe it. A mind is a terrible thing to waste.
edit:
moved up a page.
Looks good Jerommel. :+1: I’d like to see something like that in a 26650 size.
I may be fluid, but not a fluid as in liquid.
Stuff has 3 phases: Solid, liquid, gas (and plasma too, but that’s unusual).
Maybe it’s a language thing though.
My personal favourite version, kind of ‘finished’ i.m.o.
But anything can be adapted.
So this is a compact head because it follows the shape of the parabola.
Cooling fins not to deep and not too narrow.
Lanyard hole near the bezel for balance (head will not hang down as much)
Anti rolling ‘blocks’
Maybe i’ll do a section drawing with the parts threading on to eachother later.
Hope you like it and inspired by it.
Nobody mentioned “liquid”.
“Fluid” was the operative word.
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids. Fluids can be defined as substances that have zero shear modulus or in simpler terms a fluid is a substance which cannot resist any shear force applied to it.
Okay, i see.
Must be a language thing, i didn’t now.
But “flow” and “fluid” probably stem from the same Greek or Latin root, and air certainly flows.
:+1: …… probably is a language thing.
I like the one you just posted. Personally I’d like to see one like that in a 26650 format and smaller head sometime.
Good work. :+1:
I don't understand. Only one, actual, specific, real reflector has been proposed. It looks nothing like the renderiings. I hope that other reflectors that perform even better, step forward. But until then, the renderings look nothing like this either internally or externally, 120mm deep:
We also have not found a manufacture yet, till then we can’t make any further progress on reflector options as we do not know what the possible options are.
Manufacture comes first, reflector comes later.
Ha, Ha. Only one real reflector has come forward in all this time so far. Seems like imaginary, fantastical renderings come first. Really. Please render one with this reflector and then vote on box verses plunger.
EDIT: And, shouldn't the specs come first and then a manufacturer that is willing to meet them?
I was talking from this point the next step is a manufacture.
The specs were more or less set before we started this thread.
The render was the most important thing for finding a manufacture, it vastly improves are ability to communicate what we want.
Now we need to find a manufacture.
After that we can see what options the manufacture has for reflectors and what options they are open to. From that point we will know what reflectors are options and which are not.
Fist step - Establish specs
Second Step - Manufacturers bid on meeting those specs.
The specs are primarily performance and cost. Why lock into a specific manufacturer and then loose the biggest bargaining chip?
It is more like begging and pleading with one of them to take on this project at our price point and the quality we demand. There are not exactly a large pool of manufactures that could handle this project.
The best way to define specs with a language barrier is with pictures, pictures are worth a thousand words as they say.
Thus the render is by far the best way to show them what we want.
Technical specs are not all that complicated, XHP35 LED @ 2.5A+ with a ~120mm reflector, 8x 18650 battery tube with 2x cell carriers and our in house designed driver.
Those specs are easy and were mentioned in the very first post.
The look and feel of the light is what took over 8 months to nail down in the Q8 project going back and forth with Thorfire. We have already cut that down to a mere month to get a design we like and that should vastly improve the rest of the process.
I have a TN42 running a de-domed HD E4 bin 3C tint, it gained 56kcd over my other stock TN42 CW HI measured at 2M on my CT1330B meter. Not scientific, but apples to apples!