Roche F6 hacking

Surface mount right angle switch: http://www.digikey.com/product-detail/en/TL3330AF260QG/EG4389CT-ND/1426859

The TIR I used is made to fit the XML without a spacer as well, it's just that adding a ~.030" spacer gives a bit tighter beam.

So I somehow managed to create a 70N02 Roche driver awhile ago. Even though I haven’t really found myself interested in straight DD yet and I don’t have an Roche F6. :smiley:
Still interested in one Comfychair?

this?
http://www.digikey.com/product-search/en?WT.z_header=search_go&lang=en&site=us&keywords=P10880S-ND&x=0&y=0
Well cut off the push button part to fit

They have that lbr at adafruit for that switch
B3F-31XX Omron switch

IRLM2502 would be better, smaller footprint

Joke? There should be no footprint issues, this is a 20mm 2-sided driver. 70N02 fits on a 17mm driver, surely it must fit on a 20mm driver even with a small microswitch added? The IRLM2502 is has vastly inferior RDS (on). It’s a “baby” FET.

You just put the MCU and most support items on the bottom and the FET on top.

The 20DD is just a 17DD, with a bigger OD. Plenty of room for the switch without changing anything or moving parts to the battery side.

Warhawk, that switch is far too big, it needs to be one of the 'half height' rectangular switches, specifically the one I linked to or one of the same package size/format. The driver compartment on the F6 is extremely tight and the switch fits into a little machined pocket in the side wall. It has to be the same outline as the one on the original driver.

The stock driver isn't that bad really, it just has some annoying quirks. Could be better (can't everything be better?).

It only has 3 modes but they are nicely spaced, the low is sufficiently low, but a long-press-for-on/off UI really should have memory, otherwise what's the point? It always turns on in high mode whether that's what you want or not. The long press duration is reasonable, unlike the DQG 26650 (three seconds?? you gotta be kidding me! It's easier to turn that one off by unscrewing the battery tube, truly annoying.). And the output is pretty good too - it doesn't lag far behind a Convoy S3 using a 17DD & the same 10* TIR. It's driven hard enough it'll get HOT if you run it a while. The low voltage warning LED is interesting, I guess, but is it practical to look down at the light every so often to see if the LED's flashing red at you? There are better ways to handle it, in the firmware.

The biggest improvement by far is adding the TIR, the driver would just be a bonus.

Mine has mode memory. Is there any ‘easy’ mod I can do to make it just that little better

In what respect?

Just abit brighter. I could start with copper wick on the tailcap?

The tailcap is pressed in, there is not cap to unscrew…you could knock out the plug…but getting it back in without a press might be difficult

hmm…this driver looks like a buck circuit (the big coil gives it away), might be able to resistor mod it, also it has mode memory ONLY if you leave it in the mode you want for a few seconds…if you change modes then shut it off quickly it starts back up in next mode memory…a flaw in the programming

Only other way to increase power would be to get custom hardware builds…I believe people are working on them

Here ya go

DrJones custom driver

My 70N02 Roche driver is done. Actually done awhile ago.

??

Well, its done. Just not sure if it might be a little tight for some. Goals were to fit as much on the top as possible (so it can just be reflowed on a hotplate), use an ebay switch (so that no one is forced to do a mouser / digikey order just for a switch), stick to 0603 0805 & include indicator leds.
Lost interest in trying anything different.

~ Edit~
0805. Would have been easy if I used 0603 instead.

Would you be willing to put the IRML2502 on it…not as beefy as the 70N02 on it…plus do you really need 12A on a single emitter?

Besides 4~A would be ALOT for this setup…not a whole lot of meat there to soak up that heat…with the ATtiny and 4-5 modes lower than wide open would definitely make it alot more versatile? Star or minimo or (Tom E Omni Mech build of luxdrv[well…I dubbed it OMNI MECH because it has 25 different variants in it])

People seem to like the 70N02.
I wasn’t really planing to use this driver myself.

Isn’t the point of DD drivers to make crazy hot rod lights? Turbo timeout and modes to make it reasonable for normal use.

I don’t know. Ask the hot rodders. :smiley: I haven’t really got into such overdriven lights myself. Yet.

To answer your last post Helios:

Yes, why not?, Yes and yes. In time you will :-)

Thank you for making that effort on the drivers. You guys are so damn talented!

Mine does not have any sort of memory at all ever, no matter what.

If the sense resistor is bridged it defaults to a single high mode only. On/off still works, but short presses no longer do anything.

Mine does even if you switch off straight back on. Was yours from the recent weekly promo thread?
be interesting to hear what others have

Mine's from FT, ordered mid-April. http://www.fasttech.com/products/1658300

Long press for on/off, always starts on high mode, quick double click while on gives strobe, single click alternates from strobe to SOS, long press returns to non-blinky modes.