If you are expanding it to 13mm, do you think it would be possible to fit the 7135 on there also?
I have been studying wights 15mm driver single sided FET+7135 that is sandable to 14mm, he used the SSU of course, and if you use the LFPAK33+0603 smd components+ the attiny13a-mmu i hope it could fit
The light i would like to use it in, is of course the Jexree Mini, for that it would have to be sandable to 12mm, and it would fit djozz Ultrafire LZZ-06 also.
Sorry djozz, i was wrong about the 11,6mm driver in the Jexree Mini, i must have mis calibrated my caliper, it is a 12mm driver.
One very nice thing about this MTN-12DD is that if & when RMM starts to sell these single sided 12mm fet drivers, those plus an XP-L on an 10mm sinkpad is a total drop in for the very nice 10440 host the 5$ Jexree Mini :bigsmile: Can you say ~1000 lumens at start from some very affordable parts
Richard you really should considering selling that combo as a quick and relatively easy modded light in your store, there are not many 10440 hosts that can take a DD driven XP-L but this one can, and i bet you can sell a bundle of them and with a sane shortish turbo timer they should be quite safe even.
I think that what would be more feasible on a 12mm would be pads where you could air wire a 7135 if desired instead of having it mount on the actual board. There isn't room for it on the board.
Ok, good to know and thanks for checking out if it worked
But pads is almost as good :bigsmile: there is more room to add height than building up the spring side with components, because with something like with wight’s fet+7135 12mm driver it leaves less than 1mm in the tube with the spring fully compressed.
If you can do a 12mm or 13mm sandable to 12mm with pads for airwireing the 7135, please do
As far as i understand, if we don’t install the 7135 it should work just like the MTN-12DD.
Exactly. I never liked having any components or having to jumper over stuff on the battery side. I also didn't like the compromise of the attiny10/PIC versions, but the LFPAK33+attiny13a-MMU are an awesome combination for a tiny driver like this.
Yeah i agree, i felt slightly uneasy about components sticking down in the tube & out from the exposed driver when they would change battery, my plan from early on was to find a tiny light i could mod to very bright, & do it so safe i could gift it to family members and not worry they short something on exposed components for example.
And a single sided driver makes it much more foolproof and it will look stock, before you turn it on that is
I will still probably build one Jexree Mini version with a attiny13a-ssu, just so i can more easy test various firmware set ups to see what i really like in a twisty with that much power.
You might want to add this one to the OP. Over the past few months, I've been slowly working on an update to the original BLF SRK FET driver (design by Mattaus; development ideas from Comfychair and many others).
Helios - That Roche F6 driver also seems to apply to the Roche AS31 as well. I got an AS31 and measured it out and seems to be a perfect fit, though the color LED's are not accomodated in the housing. Also the Roche F6 you can buy today seems to be under the Convoy label, and also has no holes for viewing the color LED's.
I built up one "Convoy" F6 already with this driver and it came out great! Problems were more with the host - the SS tail just cannot stay in. Also the F6 tailcap springs are uncoated steel - impervious to solder, so very difficult to wire bypass that spring.
Please provide the BLF thread links and parts list for the OP listing as well. I'm planning on building up a few more of these driver - Great Job by you and TK on this driver!!
Thanks for the added projects Helios. I, for one, definitely appreciate the 20mm triple. A quad stencil for the larger 31-2 mm Noctogon boards would also be nice to go with all the EEX6 builds.
I like those emails… mine are coming back from fab on the 19th and the 25th, but they are 4 layer panels. I’ve noticed they sometimes have slightly different dates.
+1. Oshpark has been great to work with and even though I could get boards made slightly cheaper overseas, their customer service is top notch and they've always been very helpful. In my opinion they're a company worth supporting.
Thanks.
I banged out a XP32 noctigon stencil.
You might notice the zip file is named 3x XP 31mm but it is for the XP32 & the outline is 32mm (not that the outline matters much for stencils). I’d reupload… but then I’d also want to take new screenshots. And I already spent some time fighting with oshpark’s automated design verifier. Forgot it demands bottom silkscreen, :~
plus bottom soldermask,
plus a drill. Even if you’re not using the bottom.
Still oshpark is the best, don’t get me wrong.
Thanks Tom.
I never made a thread for the Ferrero Rocher DD driver. I actually never even built one myself. Comfychair was looking for a Roche F6 DD driver & before I knew it, I started making one. Made me a little crazy in the end because of constraints I myself imposed upon the design. 0805 parts instead of 0603, two leds & mostly one sided (couldn’t ram it all into totally one sided). Didn’t mention the driver till it was nearly done.
Honestly the indicator leds don’t seem that useful to me. Since the window is/was on the back, you can’t see it while using the light. We already had LVP in firmware plus Toykeeper now made a battery check function for all lights. But the original Roche F6 had a indicator window! Didn’t want my driver to be missing something.
I think Comfy made a thread that has a parts list.
Your SS tail, I’d try a little epoxy just on one side of the SS tail. Let dry then file the epoxy till the tail fits in tightly. Spring does need to go!
for the very nice 10440 host the 5$ Jexree Mini :bigsmile: Can you say ~1000 lumens at start from some very affordable parts 
Over the past few months, I've been slowly working on an update to the original BLF SRK FET driver (design by Mattaus; development ideas from Comfychair and many others). 
We cant have to much of that.
but it is for the XP32 & the outline is 32mm (not that the outline matters much for stencils). I’d reupload… but then I’d also want to take new screenshots. And I already spent some time fighting with oshpark’s automated design verifier. Forgot it demands bottom silkscreen, :~
Even if you’re not using the bottom.
I actually never even built one myself. Comfychair was looking for a Roche F6 DD driver & before I knew it, I started making one. Made me a little crazy in the end because of constraints I myself imposed upon the design. 0805 parts instead of 0603, two leds & mostly one sided (couldn’t ram it all into totally one sided). Didn’t mention the driver till it was nearly done.