Smoke Stopper for 3 cell li-po aircraft
Description
PDFA gadget to prevent exploding batteries when testing 12v circuits such as a quadcopter.
Reduces allowed current to circuit from about 0.5 amps to 2.5 amps. This one has a shut off switch and LED power indicator.
Print instructions
Category: Electronics Summary
A gadget to prevent exploding batteries when testing 12v circuits such as a quadcopter.
Reduces allowed current to circuit from about 0.5 amps to 2.5 amps. This one has a shut off switch and LED power indicator.
Print Settings
Printer:
xyz da-vinci 2.0a (no longer have this printer)
Rafts:
No
</div>Supports:Yes
Resolution:
0.2mm
</div>Infill:100% (solid)
Notes:
I use ABS due to the bulb getting warm. PLA may melt. I included the cad files. Also, keep orientation as given in the STL's.
assembly and such
The part with the bulb socket is often fragile. Remove supports carefully. It may break!
You will also need opposing XT60 connectors, superglue, some wire, a small 3Amp switch, soldering iron, a 2-filament automotive bulb, copper tape, and other tools such as wire strippers, etc.
- glue xt60's battery side into the rectangular hole on the bulb holder
- glue a piece of copper tape on the inside of the bottom flap, folded around back.
- glue a piece of copper tape on the inside of the cylinder part of the socket, folded around back.
- adjust copper tape so they do not touch
- mount the switch
- solder a wire; bridging both "-" terminals of the xt60's with the plugs facing away, and twisted 90 degrees to fit the back hole on the case.
- solder a wire from the positive battery side xt60 to the bulb bottom.
- solder a wire from the bulb shield (top) to the middle pin of the SPDT switch.
- solder the other positive to the bottom pin of the switch.
- solder a leg of the 1K ohm resistor to the output side xt60s' "+" terminal.
- solder the other leg of the 1K ohm resistor to the long leg (anode) of a 5mm high brightness LED
- solder the other leg of the LED to the "-"s.
- !!! test it with bulb just in case! !!! (LED should light when switch is on and its working)
- glue the socket into the housing (wires in side and output side xt60 poking through)
- reinforce the xt60's with more glue
test again just in case 😉
note: LED may go out if a short occurs on the output, but the bulb should light in stead of blowing up your battery. 👍a video of my dad explaining the smoke stoppper
video being updated.
Tags
Model origin
The author marked this model as their own original creation. Imported from Thingiverse.
