Yeah I don’t get why people have trouble with it, the first link to the Jax works also on my phone but the main link kicks me to a mobile site that has no functionality.
On PC all work
“Price of everything, value of nothing ?”
I don’t get this question, what do you mean?
Got an email that it is send out.
And of course tell all about it when it comes
Big surprise because when I ordered it they said clearly out of stock.
For now I got
A good price
Fast email of shipment
So all aspects I could encounter are very good.
So we’ll see how the rest goes
Hoop nailed it, the Z1 benefits from a nice copper pill. So Hoop, when will they be ready?
It seemed to me that if I was doing this, there was no need to piggyback the 17mm driver onto the original Jaxman board. So I made the pill to fit the driver. Now even the weaker MNKE cell pulls 15.55, almost scared to test an Efest.
I’m certainly no pro machinist, and some time off makes me even rustier. But all in all it worked out pretty well. Had to use what was available so a good bit of time was spent reducing an oversize bar of Tellurium Cu, and then I had issues fitting the new brass retaining ring into the small pocket, probably a lack of the proper tools, but I persevered and it worked out pretty well.
Oh man you just made that?
it is a shame the underscore makes thngs italic since this screams for a smiley that cannot be shown O
let me google it
YES this is what I want to show or
It will be interesting to know what thermal improvement results.
TBH, all my engineering knowledge tells me that a decent aluminium alloy pill should also outperform anything made of brass.
Whereas Al vs Cu is a trickier one. Thermal conduction, thermal mass, weight, cost, ease of machining, and doubtless other factors, all need consideration and trad-off.
I suppose, the bottom line, is the price and availability, compared with $5 for the standard brass pill, and what true benefits will be gained, and whether it will make any practical difference, except in extreme modifications.
How much would you estimate that your copper pill should cost, as a commercial proposition ?
Sharpie, the cost is probably 3-4 times higher, Hoop can probably make the pills for around $15-18. In normal scenario’s this is probably unwarranted, but this Luminus SBT-70 is not efficient and burns a LOT of current as heat, so it’s necessary here to go the extra mile.
18.75A seems to be about the peak here on an Efest 4200mAh cell. At the 43 second step down point with this particular driver, it’s just about burning my hand, copper or no copper.
We have people here that take the shelf to a mirror finish. I personally don’t like to as it prohibits the Arctic Alumina Thermal Adhesive from adhering to the slick surface and can allow the mcpcb to shift once heated. It is certainly easier to remove a glued mcpcb from a mirror polished shelf.
So I tend to focus more on how flat it is and not worry much about some slight surface imperfections. I REALLY don’t like a dimple directly under the emitter from a pre-drill situation being plunged too deeply.
I think you already have nearly 60% more thermal mass. Copper and Brass are much the same, per gram. I’ll do an estimate c.f. Aluminium tomorrow.
PS: Aluminium has by far the best specific heat of any metal. Over twice that of copper. But being so much less dense, it takes a much larger volume of it.
Plain old water of course, is more than four times better, and if allowed to change phase (into steam) vastly more so.
With the exception of Magnesium and of course Beryllium, yes Aluminum is up there pretty high. But like Magnesium, the weight or mass is so low that it’s disproportionate for real world usage in many cases. Made the same size, copper blows the doors off virtually anything else commonly available. I did some testing concerning this a couple of years ago with the Trinity in C8’s, once the copper was brought into the picture prolonged high output and run time (output at life of cell) really showed the difference.
Water will come to play in a handheld flashlight, sure enough, it’s just a matter of time. Pretty sure Bucket already did that, some time back. But it’ll happen as we continue to see improvements in LED’s and the power supplies that run em.
Hank is sending me his Z1 so I’ll get some pills worked out pretty soon. I’ll be sending it back with a copper pill in it.
The tooling marks visible in photographs of my pills probably give the impression of a rough surface, so I mentioned the fingernail test just to say that you can’t feel any roughness even though you can see distinct tooling marks because of how they interact with light. As for what is really necessary for production standards, I’d say just flat and fairly smooth. A normal finish facing pass with a decent insert should accomplish this in a matter of seconds on a lathe, but that seems out of reach for a lot of manufacturers. :confounded:
I have a question about tooling marks, or even slight minute tooling ridges that one could actually feel with a fingernail in the MCPCB pocket of the pill. ( I am not talking about super grossly rough tooling marks mind you ).
If it they were flat, would the slightly rough tooling ridges along with a proper amount of Arctic Silver 5 Premium not give better heat transfer from the MCPBC to the pill than if it were smooth.
My though is the slight tooling ridges would indeed give more surface area for the heat to be transferred from the MCPCB to the pill, by way of the Arctic Silver 5 Premium of course. That is my theory anyway, same as cooling fins on the outside of the light dissipates much more heat than a smooth surface with no fins.
Yeah, the super smooth and polished pockets on the pills look very nice indeed… I agree with that. But, they also have less surface area to transfer the heat to than a pocket with slight tooling ridges.
Hi, I did the resistor mod on the stock Z1 XHP50! As I only had a R100 at hand this was added to the original R150, giving a total of 0.06 Ohm instead of 0.15 Ohm on high.
Tailcap readings BEFORE:
L:0.05A M:0.5A H:2.5A
Tailcap readings AFTER:
L:0.05A M: 0.5A H:5A
I shaved the XHP50 at the same time so I can only say it got a significantly brighter projection
or 
