The Miller
Newly Enlightened
- Joined
- May 8, 2016
- Messages
- 75
Old fashioned quality SRK style flashlight groupbuy
Sample of Djozz:
first look at first produced Q8
The first prototype is ready.
And it is send to Tom for a good check!
Here are some pictures:
.
.
.
.
.
OK time for a little update
We cannot show the battery tube and tail since that is Thorfire design.
Cross section
At last, the outside of the head is almost good. Check the minor problem with the button not being integrated looking from the side.
.
Some details showing a driver retainer ring, the LEDboard.
NOTE: the outer edges on for example the fins (left) now nice and smoothly rounded.
Yesterday the head of engineering department was very responsive.
They are going to correct the button.
Also the bezel was corrected closer to the result of the poll (though we will ask for a flatter one)
.
.
Then, DO NOT BE STARTLED BY THIS PIC, read the text below it first
It startled me, that is for sure.
But Daniel was responsive so we could email directly and explain why copper is needed and finally got this reaction:
.
.
.
.
.
.
OK the SRK is a light that comes up very often, and well when it comes up there always are people saying how poorly they are made nowadays.
So lets force out a good one like they used to be, but with modern features.
First rough sketch of the head send to Thorfire.
Sorry I do not have high skills in graphic design and software so it is made in Kolourpaint.
Example of a SRK
With the wide selection of modes this will also make an exellent camping lanterns when used with a diffuser (depicted a $8.50 camera flash difuser)
4 cells in parallel and LEDs with a 3535 footprint are non negotiable at this time.
All who want something else have to do modding of this light to achieve it.
The light will be worthy of modding and wherever possible the most mod friendly choice shall be made.
The Q-team
djozz .......... LED tester, general info
Tom E ........ Software and driver design
Pilotdog68 . Driverdesign
MRsDNF ... General info, communiction during China office hours
The Miller .. General info, communication
Thorfire wants to work with us!
Barry (Thorfire) is enthusiastic and willing to work with us.
Neal is enthusiastic and willing to work with us.
The current plan is to develop the light with Thorfire and sales and distribution are handled by Banggood.
Q8 BLF Special SRK inspired flashlight
.
.
………….. specs ……………….. notes
BLF Q8
………….. Marking/logo "BLF Q8" for the groupbuy, manufacturer can choose own marking/logo afterwards
.
.
Pricing
………….. $40 .. including shipping …. manufacturer can decide own pricing afterwards
.
.
Emitters
………….. 4 pieces …. 3535 footprint for max versatility (Nichias 219Cs or XPL HIs can be reflowed if wanted)
.
………….. Cree XPL NW……. Yes for now it is decided the domed XPL NW for max lumens and flood (estimated at 4000 lumens minimum)
.
………….. LEDs mounted on DTP stars like Noctigon
.
.
Internals
………….. Integrated LED shelf …. for good thermal dissipation at least 4mm thick
.
………….. 20 AWG Wires ………… Wires to led not through center of integrated shelf but the sides of it
.
………….. Driver retainer ring
.
………….. Double springs with the smaller being Phosphor Bronze springs
.
………….. Threads square or trapeziod (not triangular) for battery tube
.
………….. Anodised threads part battery tube that screws into the head for lock out
.
………….. Tailap can be unscrewed to access the pcb connecting the – side of the cells
.
………….. Threads square or trapeziod (not triangular) for tail cap
.
………….. Threads bezel can be anything manufacturer chooses
.
………….. Electronic side switch
.
………….. Mounting for tripod
………………….. mounting nut hole not drilled though the whole body to ensure waterproofing placed opposite of the button
.
.
Optics
………….. Aluminium reflector ……. same top sizes as the older SRK reflectors
.
………….. Glass lens ……………. 2mm thick
.
.
Protective
………….. O-ring bezel ………. quality thus thick and perfect fit
.
………….. O-ring battery tube … quality thus thick and perfect fit
.
………….. O-ring tail cap ……. quality thus thick and perfect fit
.
………….. Aliminum alloy …….. 6061-T6
.
………….. Type II anodisation…not HA3 for the groupbuy
.
………….. Waterproof side switch
.
………….. Stainless steel bezel
.
………….. Light comes with spare o-rings in all the sizes used
.
.
Software
………….. Tom E Narsil firmware
………….. Several modes and blink modes
………….. User configurable
………….. Fixed modes and ramping
………….. Voltage check
………….. Low voltage cut off
………….. lock out
.
.
Driver design
………….. Tom E Electronic switch driver for Narsil firmware
………….. Very low parasitic drain
………….. Able to run 1,2,3 and/or 4 button top 18650 cell(s)
.
……. MCU …. Atmel ATTINY85V-10SH or ATTINY85-20SU package is important: 8S2
.
……. FET …. Manu: Vishay Siliconix, Manu PN: SIR800DP-T1-GE3, Digikey PN: SIR800DP-T1-GE3CT-ND
…………………… form factor: PPAK SO-8
.
……. Resistor ….. 0805 SMD 47K OHM 1% 1/8W
.
……. Resistor ….. 0805 SMD 220K OHM 1% 1/8W
.
……. Resistor ….. 0805 SMD 12K OHM 1% 1/8W
.
……. Diode …….. Schottky, 10v 570 kA SOD323 Manu PN: ZLLS410TA, Digi-Key PN: ZLLS410CT-ND
.
……. Capacitor…. 0805 Ceramic, 12uF 16V X7R
……………………………….. If possible 12 uF or higher instead of 10 uF — may be required
.
……. 7135 chip …. 7135 350 mA 7135 amp regulator used for low modes
.
.
Quality
……………. Samples 100% as agreed and specified
.
……………. Final production lights 100% as agreed, specified and samples
.
……………. Video of drop test shipment packaging made available before lights available for sale.
…………………. This video shows at least 10 drops of the light in packaging from at least 1 meter high
…………………. falling in different angles, the 8 corners, bottom and side hitting the ground first
.
…………….All lights tested before shipping to spot and fix problems and avoid DOA.
.
.
Driver Design Notes
…..The 47K and 220K resistors are the voltage divider, where the 220K is R1, the 47K is R2
…..The 12K resistor is a FET gate resistor (on the trace from the MCU I/O pin to the FTE Gate,
……connected to ground.)
…..Diode is for reverse polarity protection
…..The SIR800DP FET is expensive, but can easily handle the high amps we get in driving 4 parallel LED's
…….from 4 parallel cells, without any degradation or heat. It's an extraordinary performing FET for it's size
.
.
.
Here goes new info on the version 1 of the driver we aim for.
Now isn't this a thing of beauty?
Components:
Layout on board
Easier to read markings
Board design by PD68
.
.
.
We aim for at least 500 interested and Thorfire sees this as absolute minimum.
Please discuss things and if you want to paticipate or just know you want one, say so
The CPF interest list:
1 jabe 1
2 trouthead
3 msim
4 TheShadowGuy
5 glockboy
6 Offgridled
7 bladesmith3
8 SG Hall
9 Bdm82
10 Offgridled
11 Tejasandre
12 Wendee
13 Smegheaaad
14 KingSmono
15 96transam
16 Need a Light?
17 acruzangels
18 Smegheaaad
19 Majestic
20 Trouthead
21 GLOCKshooter
22 brighterthanthesun
23 brighterthanthesun
24 jbraman
25 MAD777
updated till post 127
List on BLF: 1324
Total 1349!
Change list from original design ideas so you guys can see the evolution of the project so far and have an idea what is discussed already, feel fre to bring up everything you want though, I will do my best to address all you write.
Aluminium or copper pill/led shelf instead of brass
Integrated LED shelf instead of screw in copper pill/led shelf
Lockout via side switch instead of adding a new to b designed tail switch
Added low voltage cut off
Added AR coated lens
Removed AR coated lens because of tint shift.
Added DTP to stars.
Removed Quality lanyard
Added Cree XPL HI as possible LEDs
Added Nut to attach tripod negotiable
Added charging system like BD0x negotiable
12 April Refreshed specs and features, easier to read, corrected some spelling errors
Added Reflector height, diameter and support rim as the current SRK reflectors
Added Head internals support rim of the reflector
This ensures compability with the SRK reflectors so owners can mod the Q8 to use from 3 up to 10 emitters with a SRK reflector that is widely avalable.
Added Parallel max 4 cell configuration (to use 1, 2, 3 and/or 4 cells)
Added Able to take the largest of protected button top 18650 cells
Changed spring configuration to Double springs with the smaller being a Phosphor Bronze spring
Added 18 AWG Wires
Added Wires to led not through center of integrated shelf but the sides of it
Changed specslist to look more like a spreadsheet, hopefully this reads easier
Changed 20 AWG wires instead of 18, this should be thick enough
Added Light comes with spare o-rings in all the sizes used.
Changed drops from 2 meter to 1 meter
Added about droptest falling in different angles, the 8 corners, bottom and side hitting the ground first
Changed LEDs chosen emitter XPL Neutral white
Added Pilotdog68 driver design to team.
Sample of Djozz:
The first prototype is ready.
And it is send to Tom for a good check!
Here are some pictures:
.
.
.
.
.
OK time for a little update
We cannot show the battery tube and tail since that is Thorfire design.
Cross section
At last, the outside of the head is almost good. Check the minor problem with the button not being integrated looking from the side.
.
Some details showing a driver retainer ring, the LEDboard.
NOTE: the outer edges on for example the fins (left) now nice and smoothly rounded.
Yesterday the head of engineering department was very responsive.
They are going to correct the button.
Also the bezel was corrected closer to the result of the poll (though we will ask for a flatter one)
.
.
Then, DO NOT BE STARTLED BY THIS PIC, read the text below it first
It startled me, that is for sure.
But Daniel was responsive so we could email directly and explain why copper is needed and finally got this reaction:
Quote:
OK,We will use the best LED copper base plate
.OK,We will use the best LED copper base plate
.
.
.
.
.
.
OK the SRK is a light that comes up very often, and well when it comes up there always are people saying how poorly they are made nowadays.
So lets force out a good one like they used to be, but with modern features.
First rough sketch of the head send to Thorfire.
Sorry I do not have high skills in graphic design and software so it is made in Kolourpaint.
Example of a SRK
With the wide selection of modes this will also make an exellent camping lanterns when used with a diffuser (depicted a $8.50 camera flash difuser)
4 cells in parallel and LEDs with a 3535 footprint are non negotiable at this time.
All who want something else have to do modding of this light to achieve it.
The light will be worthy of modding and wherever possible the most mod friendly choice shall be made.
The Q-team
djozz .......... LED tester, general info
Tom E ........ Software and driver design
Pilotdog68 . Driverdesign
MRsDNF ... General info, communiction during China office hours
The Miller .. General info, communication
Thorfire wants to work with us!
Barry (Thorfire) is enthusiastic and willing to work with us.
Neal is enthusiastic and willing to work with us.
The current plan is to develop the light with Thorfire and sales and distribution are handled by Banggood.
Q8 BLF Special SRK inspired flashlight
.
.
………….. specs ……………….. notes
BLF Q8
………….. Marking/logo "BLF Q8" for the groupbuy, manufacturer can choose own marking/logo afterwards
.
.
Pricing
………….. $40 .. including shipping …. manufacturer can decide own pricing afterwards
.
.
Emitters
………….. 4 pieces …. 3535 footprint for max versatility (Nichias 219Cs or XPL HIs can be reflowed if wanted)
.
………….. Cree XPL NW……. Yes for now it is decided the domed XPL NW for max lumens and flood (estimated at 4000 lumens minimum)
.
………….. LEDs mounted on DTP stars like Noctigon
.
.
Internals
………….. Integrated LED shelf …. for good thermal dissipation at least 4mm thick
.
………….. 20 AWG Wires ………… Wires to led not through center of integrated shelf but the sides of it
.
………….. Driver retainer ring
.
………….. Double springs with the smaller being Phosphor Bronze springs
.
………….. Threads square or trapeziod (not triangular) for battery tube
.
………….. Anodised threads part battery tube that screws into the head for lock out
.
………….. Tailap can be unscrewed to access the pcb connecting the – side of the cells
.
………….. Threads square or trapeziod (not triangular) for tail cap
.
………….. Threads bezel can be anything manufacturer chooses
.
………….. Electronic side switch
.
………….. Mounting for tripod
………………….. mounting nut hole not drilled though the whole body to ensure waterproofing placed opposite of the button
.
.
Optics
………….. Aluminium reflector ……. same top sizes as the older SRK reflectors
.
………….. Glass lens ……………. 2mm thick
.
.
Protective
………….. O-ring bezel ………. quality thus thick and perfect fit
.
………….. O-ring battery tube … quality thus thick and perfect fit
.
………….. O-ring tail cap ……. quality thus thick and perfect fit
.
………….. Aliminum alloy …….. 6061-T6
.
………….. Type II anodisation…not HA3 for the groupbuy
.
………….. Waterproof side switch
.
………….. Stainless steel bezel
.
………….. Light comes with spare o-rings in all the sizes used
.
.
Software
………….. Tom E Narsil firmware
………….. Several modes and blink modes
………….. User configurable
………….. Fixed modes and ramping
………….. Voltage check
………….. Low voltage cut off
………….. lock out
.
.
Driver design
………….. Tom E Electronic switch driver for Narsil firmware
………….. Very low parasitic drain
………….. Able to run 1,2,3 and/or 4 button top 18650 cell(s)
.
……. MCU …. Atmel ATTINY85V-10SH or ATTINY85-20SU package is important: 8S2
.
……. FET …. Manu: Vishay Siliconix, Manu PN: SIR800DP-T1-GE3, Digikey PN: SIR800DP-T1-GE3CT-ND
…………………… form factor: PPAK SO-8
.
……. Resistor ….. 0805 SMD 47K OHM 1% 1/8W
.
……. Resistor ….. 0805 SMD 220K OHM 1% 1/8W
.
……. Resistor ….. 0805 SMD 12K OHM 1% 1/8W
.
……. Diode …….. Schottky, 10v 570 kA SOD323 Manu PN: ZLLS410TA, Digi-Key PN: ZLLS410CT-ND
.
……. Capacitor…. 0805 Ceramic, 12uF 16V X7R
……………………………….. If possible 12 uF or higher instead of 10 uF — may be required
.
……. 7135 chip …. 7135 350 mA 7135 amp regulator used for low modes
.
.
Quality
……………. Samples 100% as agreed and specified
.
……………. Final production lights 100% as agreed, specified and samples
.
……………. Video of drop test shipment packaging made available before lights available for sale.
…………………. This video shows at least 10 drops of the light in packaging from at least 1 meter high
…………………. falling in different angles, the 8 corners, bottom and side hitting the ground first
.
…………….All lights tested before shipping to spot and fix problems and avoid DOA.
.
.
Driver Design Notes
…..The 47K and 220K resistors are the voltage divider, where the 220K is R1, the 47K is R2
…..The 12K resistor is a FET gate resistor (on the trace from the MCU I/O pin to the FTE Gate,
……connected to ground.)
…..Diode is for reverse polarity protection
…..The SIR800DP FET is expensive, but can easily handle the high amps we get in driving 4 parallel LED's
…….from 4 parallel cells, without any degradation or heat. It's an extraordinary performing FET for it's size
.
.
.
Here goes new info on the version 1 of the driver we aim for.
Now isn't this a thing of beauty?
Components:
Layout on board
Easier to read markings
Board design by PD68
.
.
.
We aim for at least 500 interested and Thorfire sees this as absolute minimum.
Please discuss things and if you want to paticipate or just know you want one, say so
The CPF interest list:
1 jabe 1
2 trouthead
3 msim
4 TheShadowGuy
5 glockboy
6 Offgridled
7 bladesmith3
8 SG Hall
9 Bdm82
10 Offgridled
11 Tejasandre
12 Wendee
13 Smegheaaad
14 KingSmono
15 96transam
16 Need a Light?
17 acruzangels
18 Smegheaaad
19 Majestic
20 Trouthead
21 GLOCKshooter
22 brighterthanthesun
23 brighterthanthesun
24 jbraman
25 MAD777
updated till post 127
List on BLF: 1324
Total 1349!
Change list from original design ideas so you guys can see the evolution of the project so far and have an idea what is discussed already, feel fre to bring up everything you want though, I will do my best to address all you write.
Aluminium or copper pill/led shelf instead of brass
Integrated LED shelf instead of screw in copper pill/led shelf
Lockout via side switch instead of adding a new to b designed tail switch
Added low voltage cut off
Added AR coated lens
Removed AR coated lens because of tint shift.
Added DTP to stars.
Removed Quality lanyard
Added Cree XPL HI as possible LEDs
Added Nut to attach tripod negotiable
Added charging system like BD0x negotiable
12 April Refreshed specs and features, easier to read, corrected some spelling errors
Added Reflector height, diameter and support rim as the current SRK reflectors
Added Head internals support rim of the reflector
This ensures compability with the SRK reflectors so owners can mod the Q8 to use from 3 up to 10 emitters with a SRK reflector that is widely avalable.
Added Parallel max 4 cell configuration (to use 1, 2, 3 and/or 4 cells)
Added Able to take the largest of protected button top 18650 cells
Changed spring configuration to Double springs with the smaller being a Phosphor Bronze spring
Added 18 AWG Wires
Added Wires to led not through center of integrated shelf but the sides of it
Changed specslist to look more like a spreadsheet, hopefully this reads easier
Changed 20 AWG wires instead of 18, this should be thick enough
Added Light comes with spare o-rings in all the sizes used.
Changed drops from 2 meter to 1 meter
Added about droptest falling in different angles, the 8 corners, bottom and side hitting the ground first
Changed LEDs chosen emitter XPL Neutral white
Added Pilotdog68 driver design to team.
Last edited: