Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

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Flashem
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Texas_Ace wrote:
JasonWW wrote:
samnavy wrote:
Been travelling for over a month and just now paid for my pre-ordered GT and batteries! I just moved to Hawaii and have a few miles of private beach to test it out on!
Were you still able to get it at the $115 total price? There was a deadline of 12/31 for the special price folks to pay.

This was extended a few weeks ago when no lights had shipped as many were waiting to see reviews before buying.

A new date was not set but we should figure that out soon. Likely we will change the password for that link next week.

I assume the link you speak of was intended for early buyers on the list?

I haven’t received any link for payment yet and hope I didn’t miss something?

Mr.Scott
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Flashem wrote:

I assume the link you speak of was intended for early buyers on the list?

I haven’t received any link for payment yet and hope I didn’t miss something?

The 3rd round of PMs has not been sent yet. (3rd round will start at #1050 on the sign-up list.) The PM will have the link to buy the BLF GT.

JasonWW
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Flashem wrote:
NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block. After CNC machining all leftovers are being recycled..

So then I assumed correctly. The money is in the head.

Why are they using square stock? Round stock closest to it’s OD would be cost effective? It would scrap less material and can easily be turned in a CNC lathe.

Are you sure there using square stock for a round reflector?


Where did you hear “square”? No one said 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

7 NarsilM user videos including GT
http://bit.ly/narsil-vid1

nodoubt
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raining out im bored.
just shot the lux meter with the gt on MOONLIGHT
it was 1000 lux at 4 meters on moonlight Shocked
probably more if i shot it at 10 meters.
crazy light Silly

Mr McLumen
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I am guilty as is Flashem of picturing a “block” as a six sided object with square and/or rectangular sides.

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Now that I have the GT light in hand, I can appreciate this prototype design more and wish it can come to reality someday…

Flashem
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JasonWW wrote:
Flashem wrote:
NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block. After CNC machining all leftovers are being recycled..

So then I assumed correctly. The money is in the head.

Why are they using square stock? Round stock closest to it’s OD would be cost effective? It would scrap less material and can easily be turned in a CNC lathe.

Are you sure there using square stock for a round reflector?


Where did you hear “square”? No one said that.

Nikolas said, “big peace of aluminium block”.. I assumed the word “block” was “square aluminium stock”.

JasonWW
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Flashem wrote:
JasonWW wrote:
Flashem wrote:
NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block. After CNC machining all leftovers are being recycled..

So then I assumed correctly. The money is in the head.

Why are they using square stock? Round stock closest to it’s OD would be cost effective? It would scrap less material and can easily be turned in a CNC lathe.

Are you sure there using square stock for a round reflector?


Where did you hear “square”? No one said that.

Nikolas said, “big peace of aluminium block”.. I assumed the word “block” was “square aluminium stock”.


I assume he meant to use the word “stock” instead of “block”. Meaning a solid piece of material. Block could be any shape now that I think about it.

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

7 NarsilM user videos including GT
http://bit.ly/narsil-vid1

teacher
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Throw me in to darkness wrote:
teacher wrote:
Throw me in to darkness wrote:
Just a thought, it was suggested Lumintop’s tooling blades are being worn down to a nub, to avoid replacing them as often when making the reflectors – hence the possible reason for inconsistent finishes from one to the next.
Now we are all of a sudden wanting quality over quantity, surely we aren’t going to get it if that tooling theory is true….???
Lumintop is not even making the reflectors my friend.
Ok, ummm swap out Lumintop for the manufacturer of the reflectors and the question still applies Thumbs Up
OK.. It is then up to Lumintop & Neal’s QC to give final pass to reflector.
TA stated that Team OK was given to V1 reflector & anything ‘better than that’ was a bonus.
But it also seems LT is making every effort to provide the best reflector possible in this price point light. Maybe even better quality than was expected.

The slight inconsistencies we are seeing appear to be in the final finish/coating, not in the machining.

It appears possible (not confirmed yet) that maybe a tiny number slipped through the QC control. But, as stated; that is yet to be confirmed.

As I understand what TA said…. everyone will get (one way or another) ….
……. a reflector ‘at least meeting’ the standard the Team OK’d.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

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teacher
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NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block.
After CNC machining all leftovers are being recycled..
To me, NikolaS was simply saying they were using a big CHUNK of aluminum. I did not read it as a reference to shape.
I read it as “block” = “chunk”…… nothing more.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

Tejasandre
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block
bläk/Submit
noun
1.
a large solid piece of hard material, especially rock, stone, or wood, typically with flat surfaces on each side.
“a block of marble”
synonyms: chunk, hunk, lump, wedge, cube, brick, slab, bar, piece
“a block of cheese”

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Ok all. Most of us knew what he meant. Lets move on. Facepalm

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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Picked up a new toy…………..indispensable measuring tool today. I’ve been what I call a connoisseur of light for a decade or so now. My sweet spot is 5500K. I’ve just not been able to get into the neutral or warm Whites. There is only 1 incan bulb in my house. Everything else is LED 5000K or 5500K. Now I can precisely measure all of my home, car, searchlight and other lights’ color temps and the REAL CRI, not just the averaged number usually quoted for marketing purposes. I’ve learned quite a bit over the last week while researching my purchase. The typical CRI number we see is the calculated average of 8 colors chosen decades ago by a Body in France, the name escapes me now. It represents how close a light source comes to the spectrum emitted by Tungsten incandescent light. CRI of Tungsten light is 100 on the CRI Scale. Extended CRI adds another 7 colors to the mix and the Sekonic 7000 meter has the capability to measure and display the additional 7 additional colors. The more color samples that are taken, the more accurate your CRI is going to be. But even CRI is a bit outdated and there have been and are processes in-motion to use another standard or two. There’s a lot more to it but i won’t get that deep. Suffice to say that below, the first 2 pics are of readings of the Sun. The first shows the Color temp in Kelvin (Tcp on the meter) of the Sun at 3:15 PM. Don’t pay attention to any of the lux reading as I did not set up for a precise Lux measurement. The next pic shows the CRI RA average calculated on only the first 8 colors in the bar graph but it also shows specific individual CRI readings from all 15 samples. The higher the bar graph and number to the left, the higher the CRI of each of the sample colors and the closer to the Tungsten standard the measured light source is.

The 3rd and 4th pics are of the same type of measurements of the GT on HIGH, not Turbo. The 5th and 6th pics are of the GT on Turbo. Notice how the R9 Red is absent from the GT and is actually a minus number.

Sol at 3:15 PM Dec 12 Text Mode

Sol at 3:15 PM Dec 12 Bar Graph Mode

GT at Top of Ramp Text Mode

GT at Top of Ramp Bar Graph

GT at Turbo Text Mode

GT at Turbo Bar Graph Mode

WWII 60" Carbon Arc (Sold), 1.6KW NightSun, 1KW VSS-3A, .8KW TrakkaBeam, 600W M-134 Light, 500W X-500-14s, 500W Starburst, 500W A120b, 450 Watt AEG German Leopard 1 Tank Light, 300W Locators, Megaray, 150W Communicator, Maxabeam Gen3, Pichel 75W Mini-Novas

EggsnBacon
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BVH wrote:
Picked up a new toy…………..indispensable measuring tool today.

Now that is one awesome tool. I hope you know you are now obligated to test and upload results for every light you own lol.

New addict  -Various Maglites; Olight S Mini, S1 Mini HCRI, S2R, M1X, X7; Emisar D1 5000K, D1S 4000K, D4 219C; Astrolux S41, S42 219C

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Nice BVH, bet you’re having fun with that!

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Can’t we buy the new 5700k LED already mounted without sending our old LEDs back to Richard?

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Far Thrower wrote:
Can’t we buy the new 5700k LED already mounted without sending our old LEDs back to Richard?

Problem is, there is no LED boards in the size the GT takes available
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You have to send him yours & he will reflow it , I think.

Flashem
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teacher wrote:
NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block. After CNC machining all leftovers are being recycled..
To me, NikolaS was simply saying they were using a big CHUNK of aluminum. I did not read it as a reference to shape. I read it as “block” = “chunk”…… nothing more.

If you search the net to purchase a “block of aluminum” google will show you nothing other than square, flat, or rectangular stock. Anyhow, I get the point…

Teacher, I would like to be on the same page here. This block or chunk of aluminium is round stock and I would assume it is being turned in a CNC lathe?

I’m curious to how this reflector is being machined. Do you or anyone know of the page this info can be found or if this information was revealed, possibly a separate thread?

Not everyone here realizes how much work and time is involved into producing such a (masterpiece) flashlight like this..!

As far as machining goes, I think we should shine some light on the subject. I think it may help ease the frustration of some of those who were unsatisfied or complaining about there reflectors finish.

Flashem
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BVH wrote:
Picked up a new toy…………..indispensable measuring tool today. I’ve been what I call a connoisseur of light for a decade or so now. My sweet spot is 5500K. I’ve just not been able to get into the neutral or warm Whites. There is only 1 incan bulb in my house. Everything else is LED 5000K or 5500K. Now I can precisely measure all of my home, car, searchlight and other lights’ color temps and the REAL CRI, not just the averaged number usually quoted for marketing purposes. I’ve learned quite a bit over the last week while researching my purchase. The typical CRI number we see is the calculated average of 8 colors chosen decades ago by a Body in France, the name escapes me now. It represents how close a light source comes to the spectrum emitted by Tungsten incandescent light. CRI of Tungsten light is 100 on the CRI Scale. Extended CRI adds another 7 colors to the mix and the Sekonic 7000 meter has the capability to measure and display the additional 7 additional colors. The more color samples that are taken, the more accurate your CRI is going to be. But even CRI is a bit outdated and there have been and are processes in-motion to use another standard or two. There’s a lot more to it but i won’t get that deep. Suffice to say that below, the first 2 pics are of readings of the Sun. The first shows the Color temp in Kelvin (Tcp on the meter) of the Sun at 3:15 PM. Don’t pay attention to any of the lux reading as I did not set up for a precise Lux measurement. The next pic shows the CRI RA average calculated on only the first 8 colors in the bar graph but it also shows specific individual CRI readings from all 15 samples. The higher the bar graph and number to the left, the higher the CRI of each of the sample colors and the closer to the Tungsten standard the measured light source is.

The 3rd and 4th pics are of the same type of measurements of the GT on HIGH, not Turbo. The 5th and 6th pics are of the GT on Turbo. Notice how the R9 Red is absent from the GT and is actually a minus number.

Sol at 3:15 PM Dec 12 Text Mode

Sol at 3:15 PM Dec 12 Bar Graph Mode

GT at Top of Ramp Text Mode

GT at Top of Ramp Bar Graph

GT at Turbo Text Mode

GT at Turbo Bar Graph Mode

![url=https://imgur.com/xsuQt7p][img]http://i.imgur.com/xsuQt7p.jpg[/img][/url]!

Shocked THAT THING LOOKS AWESOME!!
JasonWW
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Pulsar wrote:
Far Thrower wrote:
Can’t we buy the new 5700k LED already mounted without sending our old LEDs back to Richard?

Problem is, there is no LED boards in the size the GT takes available

Correct, the GT has a massive 45mm diameter mcpcb. Richard carries them up to about 27mm. Keep in mind that the Convoy L6 with its xhp70 and 9,000 lumen potential (for the 70.2 and fet driver) only uses a 20mm mcpcb.

The reason the GT needs the massive size, even though it’s only putting out 2,500 lumen, is because of the massive reflector. The base of the reflector and centering ring are quite huge by normal flashlight standards.

See the base diameter of the reflector below. Courtesy of MRsDNF (Next to C8, S2+ and P60 reflectors)

Bonus pics.

Next to a Q8.

Currently there is a 32mm maxtoch mcpcb for an xml. These can be converted to 12 volt by some cutting and soldering, but I’m still not sure it would fit.

If anyone happens to find a big 12 volt xhp35 mcpcb for sale, please post about it here.

Thanks

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

7 NarsilM user videos including GT
http://bit.ly/narsil-vid1

Jerommel
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NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block.
After CNC machining all leftovers are being recycled..

I doubt that.
I assume they get rough casts in reflector shape and then machine it.
Otherwise it would be a huge waste of aluminium, time, energy and tools.
Sure they recycle the machined off aluminium, but recycling those bits with machine oil and surface oxidation into the same quality alloy is costly too.

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

JasonWW
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Jerommel wrote:
NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block.
After CNC machining all leftovers are being recycled..

I doubt that.
I assume they get rough casts in reflector shape and then machine it.
Otherwise it would be a huge waste of aluminium, time, energy and tools.
Sure they recycle the machined off aluminium, but recycling those bits with machine oil and surface oxidation into the same quality alloy is costly too.

I think you would be surprised how quickly the modern CNC machine can carve up a big chunk of aluminum. I’m almost positive it’s quicker and cheaper to do it this way as opposed to using a forge and melting down aluminum then making castings which are going to end up not perfectly round for the lathe to grab ahold of.

Recycling the massive left overs is quite easy. It just gets shipped off. The place doing the machining doesn’t have to deal with it.

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

7 NarsilM user videos including GT
http://bit.ly/narsil-vid1

Jerommel
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JasonWW wrote:
Jerommel wrote:
NikolaS wrote:
Aluminum reflector this size and thickness,is made from single big peace of aluminium block.
After CNC machining all leftovers are being recycled..

I doubt that.
I assume they get rough casts in reflector shape and then machine it.
Otherwise it would be a huge waste of aluminium, time, energy and tools.
Sure they recycle the machined off aluminium, but recycling those bits with machine oil and surface oxidation into the same quality alloy is costly too.

I think you would be surprised how quickly the modern CNC machine can carve up a big chunk of aluminum. I’m almost positive it’s quicker and cheaper to do it this way as opposed to using a forge and melting down aluminum then making castings which are going to end up not perfectly round for the lathe to grab ahold of.
You’ll start with drilling a hole probably, and go from there.
Quote:

Recycling the massive left overs is quite easy. It just gets shipped off. The place doing the machining doesn’t have to deal with it.
It’s still a huge loss in material (like 95%), which has to be sold as waste and shipped.
Imagine the weight of the huge solid rods (poles rather) needed to machine 1000 GT reflectors.

Fact is, we don’t know.
People making one offs for a project will have to use solid chunks, but we’re talking Chinese mass production here.

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

NikolaS
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First I though they are made from circle plate shaped 3-5mm aluminum simply and fast with spinning over the shaped cast. Even Alloy wheels body is made that way…
But then I realized that we are talking about small CNC traces all over this thread, so they must be made from solid round chunk of aluminium bars at least 13cm in diameter.

That is just my conclusion, I’m not metallurgy expert, if someone knows better explanation I would like to know.

CCl3NO2
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BLF GT has just arrived. All perfect! What a light: I could use it to illuminate a tennis court! Thanks a lot!

teacher
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BVH wrote:
Picked up a new toy…………..indispensable measuring tool today. I’ve been what I call a connoisseur of light for a decade or so now. My sweet spot is 5500K. I’ve just not been able to get into the neutral or warm Whites.

There is only 1 incan bulb in my house. Everything else is LED 5000K or 5500K. Now I can precisely measure all of my home, car, searchlight and other lights’ color temps and the REAL CRI, not just the averaged number usually quoted for marketing purposes.

I’ve learned quite a bit over the last week while researching my purchase. The typical CRI number we see is the calculated average of 8 colors chosen decades ago by a Body in France, the name escapes me now. It represents how close a light source comes to the spectrum emitted by Tungsten incandescent light. CRI of Tungsten light is 100 on the CRI Scale.

Extended CRI adds another 7 colors to the mix and the Sekonic 7000 meter has the capability to measure and display the additional 7 additional colors. The more color samples that are taken, the more accurate your CRI is going to be.

But even CRI is a bit outdated and there have been and are processes in-motion to use another standard or two. There’s a lot more to it but i won’t get that deep.

Suffice to say that below, the first 2 pics are of readings of the Sun.
The first shows the Color temp in Kelvin (Tcp on the meter) of the Sun at 3:15 PM. Don’t pay attention to any of the lux reading as I did not set up for a precise Lux measurement.

The next pic shows the CRI RA average calculated on only the first 8 colors in the bar graph but it also shows specific individual CRI readings from all 15 samples. The higher the bar graph and number to the left, the higher the CRI of each of the sample colors and the closer to the Tungsten standard the measured light source is.

The 3rd and 4th pics are of the same type of measurements of the GT on HIGH, not Turbo.

The 5th and 6th pics are of the GT on Turbo. Notice how the R9 Red is absent from the GT and is actually a minus number.

Sol at 3:15 PM Dec 12 Text Mode

Sol at 3:15 PM Dec 12 Bar Graph Mode

GT at Top of Ramp Text Mode

GT at Top of Ramp Bar Graph

GT at Turbo Text Mode

GT at Turbo Bar Graph Mode


.
End of BVH post
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
.
Wow BVH!!! . Thumbs Up
This is beyond neat… thanks for sharing!

Seems we have the same tint preference. Mine is about 5000K – 5700K.
But while I have to go with the advertised ‘data’…. you can actually measure it!
I am impressed!! (and maybe even a slight bit envious… Big Smile )
Thank you again for sharing!!
Smile

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

Jerommel
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NikolaS wrote:
First I though they are made from circle plate shaped 3-5mm aluminum simply and fast with spinning over the shaped cast. Even Alloy wheels body is made that way…
But then I realized that we are talking about small CNC traces all over this thread, so they must be made from solid round chunk of aluminium bars at least 13cm in diameter.
A rough (or not so rough) cast has to be machined too, so either way, you’ll see the traces.

Was looking for a youtube video of flashlight reflector production, but haven’t found one yet.
There are various metal spinning videos though, but that’s not how these are made.

Quote:

That is just my conclusion, I’m not metallurgy expert, if someone knows better explanation I would like to know.


It would be cool if Lumintop came with a video of the production process, including the reflector.

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

Jerommel
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Location: the Hague, Netherlands

teacher wrote:
BVH wrote:
Picked up a new toy…………..
A $2K toy…
Very nice though.

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

teacher
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Location: NE & SW Alabama
Pulsar wrote:
Far Thrower wrote:
Can’t we buy the new 5700k LED already mounted without sending our old LEDs back to Richard?
Problem is, there is no LED boards in the size the GT takes available

JasonWW wrote:
Correct, the GT has a massive 45mm diameter mcpcb. Richard carries them up to about 27mm. Keep in mind that the Convoy L6 with its xhp70 and 9,000 lumen potential (for the 70.2 and fet driver) only uses a 20mm mcpcb.

The reason the GT needs the massive size, even though it’s only putting out 2,500 lumen, is because of the massive reflector. The base of the reflector and centering ring are quite huge by normal flashlight standards.

See the base diameter of the reflector below. Courtesy of MRsDNF (Next to C8, S2+ and P60 reflectors)

Bonus pics.

Next to a Q8.

Currently there is a 32mm maxtoch mcpcb for an xml. These can be converted to 12 volt by some cutting and soldering, but I’m still not sure it would fit.

If anyone happens to find a big 12 volt xhp35 mcpcb for sale, please post about it here.

Thanks
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End JasonWW post.
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Good info & pictures Jason……. . Thumbs Up

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