The GT, Proto V2 arrived!, the BLF special giga thrower

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manxbuggy1
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So TA does this mean that we are approving prototype #2 for production? It looks great from your pics.

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1) the new nitecore PDOT reflectors also have very noticeable rings

2) when another BLF user hand polished his reflector and made it look perfectly smooth, he lost a ton of lux

3) just because it is smooth does not mean it is better, you need to measure the lux, stop assuming that rings = instantly bad

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JasonWW wrote:
The grooves that are made by the cnc machine. Here is a picture of a rough pass using a square end cutting bit on some plastic.

Once the machine cuts out the majority of the reflectors inner dimensions using a square end bit it then does a slower, more precise pass to smooth out the steps. The final pass should be with a ball nose cutting tip with a large radius cutting surface to get a really smooth finish.

I was thinking they did the final pass with a square end bit instead of a ball nose bit.

Does this make sense?

Yeah, I see what you are talking about. They significantly improved it for the V2 version to the point you really have to look to see the machine marks.

The other factor is feedrate. Slower feedrates would improve the finish but also increase the costs. At this point we are splitting hairs over a few percent of throw that no one will be able to notice anyways. I mean who can really see the different between 1.3 miles of throw and 1.34 miles? lol

So there comes a point where you have to make the tradeoff between quality and cost. In this case I think we have come out way ahead on the deal considering the cost of the light.

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

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Texas_Ace
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manxbuggy1 wrote:
So TA does this mean that we are approving prototype #2 for production? It looks great from your pics.

It is not official yet but with a few minor tweaks I see no reason it could not be approved in short order.

The firmware is the only big thing that has to be figured out. I am going to flash a new firmware on it when I get home and see if that was the problem.

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

Complete collection of all my LED tests

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Enderman wrote:
1) the new nitecore PDOT reflectors also have very noticeable rings

2) when another BLF user hand polished his reflector and made it look perfectly smooth, he lost a ton of lux

3) just because it is smooth does not mean it is better, you need to measure the lux, stop assuming that rings = instantly bad


Rings are bad. No doubt.

Did the BLF user that hand polished his reflector then send it back out to be recoated?

If not, then that is why he lost output. Nothing to do with surface smoothness. You can’t confuse the 2. You need smoothness and a proper finish such as plasma vapor deposition or equivalent.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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Texas_Ace wrote:

Yeah, I see what you are talking about. They significantly improved it for the V2 version to the point you really have to look to see the machine marks.

The other factor is feedrate. Slower feedrates would improve the finish but also increase the costs. At this point we are splitting hairs over a few percent of throw that no one will be able to notice anyways. I mean who can really see the different between 1.3 miles of throw and 1.34 miles? lol

So there comes a point where you have to make the tradeoff between quality and cost. In this case I think we have come out way ahead on the deal considering the cost of the light.


Okay, then that seems fine to me. Thumbs Up

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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Texas_Ace wrote:
manxbuggy1 wrote:
So TA does this mean that we are approving prototype #2 for production? It looks great from your pics.

The firmware is the only big thing that has to be figured out. I am going to flash a new firmware on it when I get home and see if that was the problem.


Matt (Vesture of Blood, VOB) recently flashed NarsilM v1.2 on his prototype. Maybe you 2 can compare notes?
Ah, you probably already knew that.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

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All good news and thanks for the update Texas_Ace

Mike

Nav88
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Surely the reflector is being turned, not milled, no? Even with a ball end mill, milling would require a huge number of steps to get anywhere close to a smooth surface. If it’s turned, the surface finish will depend more on spindle speed and tool feed rate.

A CNC lathe will still approximate the curve with a series of steps in the radial and axial directions, but the machine resolution should be more than enough so that the steps aren’t visible.

Texas_Ace
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JasonWW wrote:
Texas_Ace wrote:
manxbuggy1 wrote:
So TA does this mean that we are approving prototype #2 for production? It looks great from your pics.

The firmware is the only big thing that has to be figured out. I am going to flash a new firmware on it when I get home and see if that was the problem.


Matt (Vesture of Blood, VOB) recently flashed NarsilM v1.2 on his prototype. Maybe you 2 can compare notes?
Ah, you probably already knew that.

Yeah, we have been talking. I have the hex file lined up, just got to wait till I get home and have time to mess with it to flash it and try it out.

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

Complete collection of all my LED tests

Texas_Ace
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Nav88 wrote:
Surely the reflector is being turned, not milled, no? Even with a ball end mill, milling would require a huge number of steps to get anywhere close to a smooth surface. If it’s turned, the surface finish will depend more on spindle speed and tool feed rate.

A CNC lathe will still approximate the curve with a series of steps in the radial and axial directions, but the machine resolution should be more than enough so that the steps aren’t visible.

Correct, it is indeed turned.

Slowing the feed rate more then they have now would start increasing the price with very little to any tangible benefit. So we have struck a good balance at this point of performance and cost. Besides the specs I am very happy with the results.

Even the specs would not technically hurt performance as they are so relatively small but cosmetically they don’t look good.

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

Complete collection of all my LED tests

JasonWW
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Specks = Like specks of dirt.

Specs = Short for specifications.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well.
http://budgetlightforum.com/node/54477

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! http://budgetlightforum.com/node/55746

6 NarsilM user videos
http://bit.ly/narsil-vid1

Oal
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Texas_Ace wrote:

Texas Ace thanks for all of that work writing that up. It was awesome and informative.

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Thanks for the review TA. Looking good. Thumbs Up

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

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Texas_Ace][quote=JasonWW wrote:

… who can really see the different between 1.3 miles of throw and 1.34 miles? lol


In fact, the difference is not perceptible. Then I wonder if the throw of this torch will be distinguishable from that of the TN42vn with throw of 1940m.
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Giancarlo wrote:

In fact, the difference is not perceptible. Then I wonder if the throw of this torch will be distinguishable from that of the TN42vn with throw of 1940m.

Well, the difference between 1.25 and 1.3 miles is also not perceptible.

Actually, the difference between 1.2 and 1.25 is also not perceptible, let’s save some money and make it just do 1.2!

Oh wait, the difference between 1.15 miles and 1.2 miles is not perceptible.

And neither is the difference between 1.1 and 1.15.

Hmm, what if we saved some money to make it do 1.05 miles since the difference is not perceptible from 1.1?

Or even 1 mile, which is not any visually different from 1.05!

Wow!

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Giancarlo][quote=Texas_Ace wrote:
JasonWW wrote:

… who can really see the different between 1.3 miles of throw and 1.34 miles? lol


In fact, the difference is not perceptible. Then I wonder if the throw of this torch will be distinguishable from that of the TN42vn with throw of 1940m.

The difference would be noticeable in that giggles has ~2300 lumens, a much larger hotspot and better tint. How noticeable? That I don’t know.

I do know that my wallet will notice the extra $200 in my pocket!

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

Complete collection of all my LED tests

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Giancarlo][quote=Texas_Ace wrote:
JasonWW wrote:
... who can really see the different between 1.3 miles of throw and 1.34 miles? lol
In fact, the difference is not perceptible. Then I wonder if the throw of this torch will be distinguishable from that of the TN42vn with throw of 1940m.

What exactly is the TN42vn that can do 1940 meters, or in kcd: 943 kcd? Is it still using a XHP35 HI or a dedomed XP-G2 or something else? I sure would rather have 1300 kcd over 943 kcd any day.

1300 kcd = 2280 meters (1.4 miles)

 943 kcd = 1940 meters (1.2 miles)

 

In this case, a 38% bump up in kcd produces a 17.5% bump in distance.

Ohh, ok. The TN42vn that can do 940 kcd is a dedomed XP-G2: (i.e.: pencil beam), hotel room window vs. the entire hotel at a distance, as a rough difference.

There's no comparison in my book.

 

 

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Probably this has already been mentioned, but I would add a crenulated steel bezel for several reasons:
1 – the flashlight would be nicer! Smile
2 – When working I often put the torch upside down on the ground and a steel bezel would avoid risk of scratches.
3 – If the torch drops on the ground by the edge of the head it gets not dinged. The steel bezel distributes the impact on the whole circumference of the head.
4 – A crenulated bezel can used to break a window glass if needed.

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Tom E]<p>[quote=Giancarlo wrote:
Texas_Ace wrote:
JasonWW wrote:
… who can really see the different between 1.3 miles of throw and 1.34 miles? lol
In fact, the difference is not perceptible. Then I wonder if the throw of this torch will be distinguishable from that of the TN42vn with throw of 1940m.

What exactly is the TN42vn that can do 1940 meters, or in kcd: 943 kcd? Is it still using a XHP35 HI or a dedomed XP-G2 or something else? I sure would rather have 1300 kcd over 943 kcd any day.


1300 kcd = 2280 meters (1.4 miles)


 943 kcd = 1940 meters (1.2 miles)


 


In this case, a 38% bump up in kcd produces a 17.5% bump in distance.


I mean the Acebeam TN42vn modded by Vihn (SkyLumen.com): https://skylumen.com/collections/v54-lights/products/tn42vn-throw-king-p...
Of course you are right, but I am not sure that a throw of 2280m is very distinguishable from a throw of 1940m as the difference is just 15%. Look at this comparative test between the Acebeam X65vn (1,575m) and the Thrunite TN42vn (1940m):
http://budgetlightforum.com/node/57081
The big difference in numbers is not so visible in the real world. Also, The X65 keeps a larger spill that makes you to understand what you are lighting. Look at the top of the dome: the X65 allows you to see the tower bell behind the Dome and the trees around. With the tight spot of the TN42 you need to explore here and there to understand the environment. I would like if the the BLF flashlight would have a beam pattern like that of the Acebeam X65.
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Giancarlo wrote:
Probably this has already been mentioned, but I would add a crenulated steel bezel for several reasons:
1 – the flashlight would be nicer! Smile
2 – When working I often put the torch upside down on the ground and a steel bezel would avoid risk of scratches.
3 – If the torch drops on the ground by the edge of the head it gets not dinged. The steel bezel distributes the impact on the whole circumference of the head.
4 – A crenulated bezel can used to break a window glass if needed.

The GT is so large and heavy that even a titanium bezel won’t stop it from breaking in a fall.
So just don’t drop it.
You also don’t want to be using this to break windows, the circumference of the head is so large that all you will do is just damage the flashlight and scratch the glass because of force distribution.
Also, the design is finalized, a steel bezel would add cost and manufacturing complexity.
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Thanks for the detailed update about the new prototype, TA! Thumbs Up

Texas_Ace wrote:
I have the hex file lined up, just got to wait till I get home and have time to mess with it to flash it and try it out.
Are the emitter wires long enough to allow access to the driver without desoldering them from the emitter board?

I plan to reflash my GT, but I’m a bit nervous about opening the head and exposing that huge gorgeous reflector to the outside world! Love

Nav88
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From the photos I’ve seen, the reflector looks beautiful. It’s not hard to imagine rapidly diminishing returns from slowing the feed rate.

I’m of course looking forward to the light this thing will put out, but the reflector alone will be a part worth admiring.

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Any chance you can get some beam shots of the new prototype? Like nice throwy beam shots at distance. The new improvements look amazing love the side led and how well they did on the battery carrier’s. Looks like a nice light. I’d notice the difference in 1.3 miles and 1.1 miles because I actually light up object’s in the distance. Might be using binoculars with this light this is crazy.

Cody Wolfe

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Giancarlo wrote:
I mean the Acebeam TN42vn modded by Vihn (SkyLumen.com): https://skylumen.com/collections/v54-lights/products/tn42vn-throw-king-pre-order-only  

I think you mean the ThruNite TN42vn - again, it's a thin beam - no comparison to the swath of coverage by the GT.

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goshdogit wrote:
Thanks for the detailed update about the new prototype, TA! Thumbs Up

Texas_Ace wrote:
I have the hex file lined up, just got to wait till I get home and have time to mess with it to flash it and try it out.
Are the emitter wires long enough to allow access to the driver without desoldering them from the emitter board?

I plan to reflash my GT, but I’m a bit nervous about opening the head and exposing that huge gorgeous reflector to the outside world! Love

Yes, the V1 proto was able to be flashed without messing with the wires so I assume V2 will as well.

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

Complete collection of all my LED tests

Texas_Ace
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CodyWolfeMusic wrote:
Any chance you can get some beam shots of the new prototype? Like nice throwy beam shots at distance. The new improvements look amazing love the side led and how well they did on the battery carrier’s. Looks like a nice light. I’d notice the difference in 1.3 miles and 1.1 miles because I actually light up object’s in the distance. Might be using binoculars with this light this is crazy.

I will try to get some beamshots once I get the firmware sorted and the LED tested. Those are first on my to do list and my limited free time.

I have a water tower I am hoping would make a good target for giggles but finding a dry enough night could be hard. In the humidity the beam just scatters to fast, looks cool though , like a light saber!

If guns cause crime, then pencils cause misspelled words.

In general, the art of government consists of taking as much money as possible from one party of the citizens to give to the other. -- Voltaire (1764)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

Complete collection of all my LED tests

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The long throw lights are something else, distance and Kcd get more and more difficult to get gains.

ie: I built my 6th light from scratch that makes 815Kcd, which is 1.122 miles. See how the greater Kcd results in surprisingly small gains?

815Kcd for 1.122 mi. (1805.547M)
943Kcd for 1.2 mi (1942.164M)
1300Kcd for 1.4 mi (2280.35M)

tougher and tougher to push that light further. And when you actually try to see those gains, at those distances, it means even less.

Dale

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I was talking with a friend who’s also on the list for a GT.

I mentioned that due to its comical size, a muggle might think the GT is an outdated incandescent flashlight filled with D batteries… until it’s powered on. Big Smile

I’m tempted to apply a faux finish (using removeable paint) to increase this effect.

Perhaps something resembling this 5 D-cell specimen periodically available ‘free with coupon’ at Radio Shack a few decades ago.

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Texas_Ace wrote:
Yes, the V1 proto was able to be flashed without messing with the wires so I assume V2 will as well.
Nice! Thanks!

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