:wave::wave:
Wow, this thread has gotten quite the numbers of views!
Anyways, it's been a few weeks and I wouldn't want to withhold the latest "upgrades"
I've been cramming into my little tinkerbox.
First of all, it now has a 25Ohm potentiometer so I can go all "smooth operator" on
the the current adjustments. Very nice!
It's getting a little crowded in here! I wonder how this spark-magnet doesn't short out itself randomly.:shhh:
A second LM317 in parallel, for that extra oomph:eg:
One is adjusted by 3 of the DIP-switches, the other by that 25Ohm potentiometer which has been tuned with ~4Ohm in parallel and ~0.6Ohm in series.
Can I haz, plz: tripod mount, active cooling and power-on LED (just in case you miss the
other blue light)
No, I don't yet have a thermostat switch for the fan, it's boringly manual on/off.
I have yet to perform a relentless high current torture, but preliminary empiric data
suggests a cooling effect of promising proportions.
_______________________
In progress:
The next problem now is, 2x18650 is not enough voltage to consistently
push more than ~1.5A for any period of time greater than just a few minutes.:undecided:
So instead of putting a 3rd battery in series, I'll put another pair in parallel.:evil:
That should even out the load and generally just provide better autonomy as well.
Eventually:
-When I'm happy with the internals (yeah, one day when a pig grows wings
)
it will get a nice,
intact "bonnet/hood" with a bigger heatsink as well.
-Also I'm likely to shamelessly steal
Markus' idea with the meter.:bowdown:
Although I'm just gonna gut an extra 5$ multimeter I have lying around, slacking off.