Loneoceans GXB172 Driver Group Buy

99 posts / 0 new
Last post

Pages

nzoomed
Offline
Last seen: 10 hours 47 min ago
Joined: 08/01/2019 - 03:32
Posts: 87
Location: New Zealand
Loneoceans GXB172 Driver Group Buy

Hello BFL community,
Firstly I would like to thank Loneoceans for assisting me with putting together the build information required for manufacturing.

As many here are aware, there is a demand for this driver from the community and myself, so I have been exploring the possibility of getting a bulk order of the 17mm version made in China and arranging a group buy for the BLF community.
Being an open source project, I have no intention on selling for profit, but rather to give everyone the best possible price.

To help me out, I would like community feedback on any preferences anyone would like, for example, what colour solder mask does everyone prefer?
I would like it to stand out different to other drivers out there and be more recognizable. Loneoceans suggested to me to go with matt black, but im open to what the majority would like.

To cut cost and make things simpler, I have opted to go in with the standard configuration and use the larger 7070 series inductor.
Im assuming this will be what most people want in a convoy build. For other hosts and/or lower current drive, others may opt to switch for a 7030 series inductor.

This driver does have limitations if not constructed correctly as described in the notes, so I ask that everybody reads the notes and instructions in the links below.
https://www.loneoceans.com/labs/gxb172/ http://budgetlightforum.com/node/59137
For this reason its also recommended to upgrade the host to the FET tailswitch see here http://budgetlightforum.com/node/59550

Being much more simple to assemble, im not currently looking at producing these unless demand is there to get some fabricated.

I have no idea on total costs yet, but initial cost of the boards and assembly without the component price for 100 boards is currently $534 USD.

Other costs to consider will be customs/import fees/tax upon receiving at the border once I get them shipped to me, international shipping to each buyer and associated paypal fees.
The manufacturer can program the micro controller, but if its too costly, I will look at doing this myself, as I will likely have to test each board before shipping out anyway, and could do this at the same time.

But its safe to say that buying multiple boards will make the cost per board cheaper.

Im considering an initial order of 100 boards, but if there shows to be more demand, I can increase the order and that will likely lower the unit cost further.
For now im looking at doing the 17mm to begin with but will consider doing a run of 20mm in the future if this is a success and there is enough demand for it.

Feel free to ask any questions. Smile

UPDATE:
Current quote for 100 boards is about $3004USD once shipping and taxes are taken into account, so we are looking around $30USD per board plus shipping to each buyer.

Edited by: nzoomed on 01/10/2020 - 21:56
Skylight
Skylight's picture
Offline
Last seen: 1 day 57 min ago
Joined: 10/01/2018 - 04:49
Posts: 488
Location: Europe

Nice suggestion!

Depending on the final price, I would be interested in two pieces.

id30209
id30209's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 05/17/2018 - 12:20
Posts: 728
Location: Croatia

In for 17mm and 20mm

WTB Titanium 4sevens Quarks & Jetbeam TCR1

nzoomed
Offline
Last seen: 10 hours 47 min ago
Joined: 08/01/2019 - 03:32
Posts: 87
Location: New Zealand
id30209 wrote:

In for 17mm and 20mm

OK, I should point out I dont have any plans to do 20mm at present, but will look into this if there is enough demand, we will need the same upfront costs to do a seperate batch in 20mm.

id30209
id30209's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 05/17/2018 - 12:20
Posts: 728
Location: Croatia

No problem. I'll take 2 anyhow Smile

WTB Titanium 4sevens Quarks & Jetbeam TCR1

KnHawke
KnHawke's picture
Offline
Last seen: 5 days 19 hours ago
Joined: 08/21/2019 - 21:28
Posts: 71
Location: MI,USA

SomBitch!
If I knew it was going to be that low… woulda done this earlier Wink
Since you’re only doing the 17mm, I guess I shall wait for when/if you are going to do the 20mm version. (I’d likely be be asking for at least 6)

nzoomed
Offline
Last seen: 10 hours 47 min ago
Joined: 08/01/2019 - 03:32
Posts: 87
Location: New Zealand
KnHawke wrote:
SomBitch! If I knew it was going to be that low… woulda done this earlier Wink Since you’re only doing the 17mm, I guess I shall wait for when/if you are going to do the 20mm version. (I’d likely be be asking for at least 6)

If anyone wants the 20mm also, I guess there is no harm in saying, so I can evaluate demand if nothing else.
I would expect that costs will be the same or similar for the 20mm version.
Ive updated the thread to reflect this, as I totally overlooked the 20mm version. Silly

id30209
id30209's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 05/17/2018 - 12:20
Posts: 728
Location: Croatia

Yeah, 2 of each then HEHE

WTB Titanium 4sevens Quarks & Jetbeam TCR1

skinny_tie
skinny_tie's picture
Offline
Last seen: 7 hours 46 sec ago
Joined: 09/23/2017 - 03:14
Posts: 354
Location: Australia

Thanks for organising this nzoomed!

I’m definitely interested in one driver, possibly more depending on cost. I’d be interested in a FET tailswitch too.

I haven’t actually got a plan for the driver. I’d love to hear what other people are planning to do with them.

id30209
id30209's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 05/17/2018 - 12:20
Posts: 728
Location: Croatia

skinny_tie wrote:
I’d love to hear what other people are planning to do with them.

 

I have coming in mail several XHP35HI in 90CRI version and FT40 (XHP70.2 dedommed 12V HI CRI version) 

Smile

WTB Titanium 4sevens Quarks & Jetbeam TCR1

1stein
1stein's picture
Online
Last seen: 2 min 3 sec ago
Joined: 12/24/2017 - 16:25
Posts: 677
Location: Poland

In for 2× 17mm + 2× 20mm
or
3× 17mm (if 20mm not available)

Plans? Plenty.

Edit: at price ~30$ I’ll take just half of it

aswang
Offline
Last seen: 4 hours 5 min ago
Joined: 07/17/2018 - 07:53
Posts: 268
Location: Philippines

In for 2 × 17mm and interested in 2 × 20mm.

rngwn
rngwn's picture
Offline
Last seen: 6 hours 31 sec ago
Joined: 05/17/2018 - 03:44
Posts: 351
Location: 暖武里,泰国

In for 2× 20mm depending on price.

Edit: Consider this as a “soft” interest. I’m still weighting options.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

flightless22
flightless22's picture
Offline
Last seen: 2 hours 16 min ago
Joined: 11/19/2018 - 12:07
Posts: 237
Location: California

I’m interested in 2, more if they are inexpensive. I would like 20mm version as well.

id30209 wrote:

I have coming in mail several XHP35HI in 90CRI version and FT40 (XHP70.2 dedommed 12V HI CRI version)

FT40? Do you mean GT-FC40?

rngwn
rngwn's picture
Offline
Last seen: 6 hours 31 sec ago
Joined: 05/17/2018 - 03:44
Posts: 351
Location: 暖武里,泰国

I think he mean the FC-40, yes.

 

Searching for High CRI leds since 2010...

 

Has finally gotten to the bottom after 10 years of delving deep into that rabbit hole of them high CRI lights...

 

High CRI, high quality lights doesn't need to be expensive, or is it?

 

id30209
id30209's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 05/17/2018 - 12:20
Posts: 728
Location: Croatia

rngwn wrote:
I think he mean the FC-40, yes.

 

LOOOOL

YES!!!! 

Thx Rgwn hahahahaha

WTB Titanium 4sevens Quarks & Jetbeam TCR1

Skylight
Skylight's picture
Offline
Last seen: 1 day 57 min ago
Joined: 10/01/2018 - 04:49
Posts: 488
Location: Europe

I would need one 20mm boost driver for the MantaRay C8.2 with a XHP70.2.

One 17mm boost driver would go in a Convoy S2+ with a XHP50.2 and maybe one in a Convoy C8+ with a XHP35.

contactcr
Offline
Last seen: 3 hours 29 min ago
Joined: 05/19/2017 - 18:52
Posts: 2915
Location: US

I would be in for one. If it could be modified for 9V so I could use it on a triple in series I would be in for a second one.

id30209
id30209's picture
Offline
Last seen: 8 hours 15 min ago
Joined: 05/17/2018 - 12:20
Posts: 728
Location: Croatia

Hm, 9V...damn that sounds interesting...

WTB Titanium 4sevens Quarks & Jetbeam TCR1

tekwyzrd
tekwyzrd's picture
Offline
Last seen: 26 min 29 sec ago
Joined: 11/14/2015 - 01:15
Posts: 1178
Location: Northeastern Ohio

interested in 2 each of the 17mm and 20mm but that depends on the final price

Nothing travels faster than the speed of light with the possible exception of bad news, which obeys its own special laws. – Douglas Adams

mattlward
mattlward's picture
Offline
Last seen: 1 day 21 hours ago
Joined: 06/19/2015 - 09:20
Posts: 2818
Location: Illinois, USA

I would be interested in at least 2 of each, if 22mm came along I would not be unhappy. If you decide to do the fet tail boards, 4 or 5 of them as well.

EDC rotation:
FW1A, LH351D 4000k (second favorite)
FW3A, LH351D 3500k
FW3A, SST20 FD2 4000k
FW3A, Nichia 4000k sw40 r9080 (favorite light!)
FW3A, Cree XP-L Hi 5A3
Emisar D4V2, SST20 4000k
S2+, XM-L2 T6 4C

pc_light
pc_light's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 03/24/2017 - 16:19
Posts: 360
Location: United States

Always admired Loneoceans’s designs, would like to try one please.

Seeking the light.

nzoomed
Offline
Last seen: 10 hours 47 min ago
Joined: 08/01/2019 - 03:32
Posts: 87
Location: New Zealand

skinny_tie wrote:
Thanks for organising this nzoomed!

I’m definitely interested in one driver, possibly more depending on cost. I’d be interested in a FET tailswitch too.

I haven’t actually got a plan for the driver. I’d love to hear what other people are planning to do with them.

Been thinking about the tailswitch and will likely get a bunch of the boards made, and perhaps a small lot of the pogo programmer boards too, but I will leave it up to everyone to build them. They are not too difficult to assemble and is a good way for those to get used to SMD work Wink

nzoomed
Offline
Last seen: 10 hours 47 min ago
Joined: 08/01/2019 - 03:32
Posts: 87
Location: New Zealand

contactcr wrote:
I would be in for one. If it could be modified for 9V so I could use it on a triple in series I would be in for a second one.

Well if its possible to run in 12V, im assuming this would be possible to modify for 9V also. Loneoceans may be able to provide more details on this.
Scallywag
Scallywag's picture
Offline
Last seen: 20 hours 7 min ago
Joined: 01/11/2018 - 22:23
Posts: 845
Location: Ohio, United States

Interested in two (of each, if you do 20mm).

EDC Rotation: ZL SC62 | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 
EagTac D25C Ti | DQG Slim AA Ti | UF-T1 by CRX | Olight S1 | Klarus Mini One Ti
L6 XHP70.2 P2 4000K FET+7135 | Jaxman M8 | MF02 | Jaxman Z1 CULNM1.TG | Blue S2+ w/ ML Special
In-progress: Supfire M6 3xXHP50.2 
Others: Nitecore EC23 | Nebo Twyst | Streamlight ProTac 1AA | TerraLux LightStar 100

nzoomed
Offline
Last seen: 10 hours 47 min ago
Joined: 08/01/2019 - 03:32
Posts: 87
Location: New Zealand
Scallywag wrote:
Interested in two (of each, if you do 20mm).

Since there is alot of interest in the 20mm version, I may as well ask the manufacturer how much more it would cost if they can do half the batch in 20mm, since its the same components, it wont be too difficult for them to do both runs together, but will still be seperate cost for another pcb design, stencils, etc so not too sure what saving there would be at this stage.

e1000
Offline
Last seen: 4 days 4 hours ago
Joined: 04/07/2018 - 19:57
Posts: 194
Location: LA, CA

Count me in for 4 of the 17mm’s.

KawiBoy1428
KawiBoy1428's picture
Online
Last seen: 9 min 32 sec ago
Joined: 04/11/2014 - 18:05
Posts: 3953
Location: The Motor City

Interested in 2 of each… thanks for doing this! Thumbs Up

KB1428 “Live Life WOT

Nicko69
Offline
Last seen: 15 hours 8 min ago
Joined: 03/27/2018 - 21:29
Posts: 62
Location: Australia

Interested. 1 × 17. 1 × 20.

moderator007
moderator007's picture
Offline
Last seen: 17 hours 12 min ago
Joined: 12/23/2012 - 04:47
Posts: 3237
Location: North Carolina

Changing R13, the 0402 resistor to 120k should give you 9v operation.
Sense resistor R1 would probably need to be changed also to some where in the 15mohm range.
.

“Though she be but little, she is Fierce”

808Hi
Offline
Last seen: 5 hours 54 min ago
Joined: 01/21/2018 - 04:30
Posts: 297
Location: Hawaii

Interested in 2 of each. Thanks

Pages