electric motorcycle battery pack rebuild

so looks like the smoke stayed in.  all new 14x 48v 40Ah lithium cells, and a new charge balancer board.  i couldnt find one that does 250amps, so i put the 50amp board to the charger, and tapped the cuttoff fet gates to the original 250A board to the motor.  way more kick in the pants than i am comfortable on 2  wheels with.  quantya.

sneaky boat from china

these cells are 40Ah each, and supposedly the factory had to custom make them in this size again.  would make a nice pack for a portable TIG welder, but instead i reubuilt this pack for an electric motorcycle.  full testing tomorrow, but for now, it looks like i did it not wrong. :)

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AF6MQ CWIR reloaded video

i stopped bringing any Fire to BinkyMan in 2007.  i’m very pleased to have a chance to fire up an old project this weekend, “AF6MQ CWIR”.  here’s the controls and solenoid on the bench all rewired and ready to be boxed.  type a letter, and the flame will go “poof” in morse code.  here’s a link to the original version for the crucibles legendary Fire Arts Festival (RIP).

and another try to link the youtubez….

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RTL-SDR, dump1090, VirtualRadar, and Sofia

having a lot of fun watching the air traffic.  i loaded dump1090 onto a debian machine, plugged in an RTL-SDR usb dongle, a hacked coax 1/4 wave vertical, and bam, we got all sorts of fun info about the planes flying over.  here’s the raw dump from dump1090

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then, using mono to run VirtualRadar, can see from other machines browser live updating with tracks, and net lookups of the tail numbers.  i can only “see” about 10-30 miles out, so very lucky to be looking at it just the right time…..

n747na

…..and then along comes SOFIA, the NASA flying telescope.  Yes, they open a door on the side, the back section is de-pressurized, so to have a clear view of the heavens.  the Ultimate Convertible, no?

and a double check against the pro’s,

fradar

so, who read all the way down here, and want’s to hear about the CHP Ghost C-130 flying circles over Folsom Lake?

 

 

electric motorcycle battery pack dissection

48V at 40Ah, this is quite the LiPo battery pack.  well, it was, before it self-discharged.  looks like about $1K to replace all those magic baggies, last picture can see the magic smoke has leaked out and left an aromatic grunge behind.   at least the BMS has a clever tab attachment setup.  searching for LiFe replacement options.  anyone recommend source for 20-40Ah that would fit roughly 210x210x150mm form factor?  only one cell has 2V on it, the others 0.2V at most, so no youtube pack puncture fun here.

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need bigger brain

re-purposed capsule board for the brain, and we have, unicorn farts!  the 256bytes of ram is limiting me from doing a proper dual-frame display array for smooth x-fades, so, morning we bust out an at90usb1287 for the job.  BIGGER BRAINZ !!!

#10 will be for show/sale this sunday at 5-Months-Gallery show.

this Sunday, Dec 6, 2015, 12:00pm – 6:00pm.

989 Mission St at 6th, San Francisco, Earth.

crackbook event link https://www.facebook.com/events/1678312035718085/

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Fuzzy Booth

here’s some pics back thru the crackbook of the Fuzzy Booth in action.  hoping someone caught some video, it’s mo betta animatin i tell ya…

3 separate data lines, dozen+ patterns in each, about half of those being sound reactive.  no bad for 8mhz, all dem squirrels caging as fast as they can…..

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used capacitors

i do a lot of parts salvaging from discarded electronics.  occasionally, i harvest some organ from a corpse that was weak or diseased and i did not know.  it’s kinda fun when the smoke gets out of these bad parts.   i’ve replaced the cap now with a new stock one, and it boots and runs.  the button however is not working, likely popped the input line to the brain.

oh well, at least i can repair what i make…..

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