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Author Topic: kWeld - "Next level" DIY battery spot welder  (Read 353790 times)

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Offline tatus1969Topic starter

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kWeld - "Next level" DIY battery spot welder
« on: June 13, 2017, 09:16:01 pm »
I have received parts for a small project that I haven't found realized in the way that I am attempting it. For today, just a picture. That AWG8 cable assembly took me two hours to finish :o

Any creative idea of what this is going to become in the end? ;)

« Last Edit: July 17, 2017, 03:57:12 pm by tatus1969 »
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Offline Paul Price

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Re: Guesses on what I am attempting here?
« Reply #1 on: June 13, 2017, 09:38:57 pm »
A waste of time.
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Offline Paul Price

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Re: Guesses on what I am attempting here?
« Reply #2 on: June 13, 2017, 09:41:52 pm »
2nd Guess: Remote voltage sensing also incorporating a fused power connection.
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Offline CM800

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Re: Guesses on what I am attempting here?
« Reply #3 on: June 13, 2017, 09:49:37 pm »
Depends... what is that black brick?

if it's a FET... coilgun! :D
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Offline Electro Detective

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Re: Guesses on what I am attempting here?
« Reply #4 on: June 13, 2017, 10:54:36 pm »
Some sort of payback device for a Neighbors From Hell electrical switchboard ?  >:D

 :popcorn:
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Online MK14

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Re: Guesses on what I am attempting here?
« Reply #5 on: June 13, 2017, 11:04:25 pm »
You using a PMSM servo motor, at 2,000 Watts (we are!), to stack an extra third road traffic cone, on top of two nicely stacked on top of each other ?
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Offline buck converter

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Re: Guesses on what I am attempting here?
« Reply #6 on: June 13, 2017, 11:23:34 pm »
welder?
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Offline Koen

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Re: Guesses on what I am attempting here?
« Reply #7 on: June 13, 2017, 11:29:19 pm »
A very-rugged armband for your smartphone ?
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Online MK14

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Re: Guesses on what I am attempting here?
« Reply #8 on: June 13, 2017, 11:35:04 pm »
48V, 40 Amp, Connector to a/the Motor (controller elsewhere), 2,000 Watt. With directional control, the black, four terminal block being some kind of powerful diode block/pack.
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Offline mjkuwp

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Re: Guesses on what I am attempting here?
« Reply #9 on: June 13, 2017, 11:52:52 pm »
To me it looks like a hookup for  a power meter, but that is not a creative idea on my part : (
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Offline StillTrying

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Re: Guesses on what I am attempting here?
« Reply #10 on: June 13, 2017, 11:53:19 pm »
Remote switch off.
Two pin power connector tester, because that looks like it would be the first part to blow!
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.  That took much longer than I thought it would.
 

Offline BrianHG

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Re: Guesses on what I am attempting here?
« Reply #11 on: June 14, 2017, 12:47:09 am »
A solar battery charger/inverter switch.
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Offline P90

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Re: Guesses on what I am attempting here?
« Reply #12 on: June 14, 2017, 12:58:12 am »
2 hours?
You're fired!   :-DD
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Offline Electro Detective

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Re: Guesses on what I am attempting here?
« Reply #13 on: June 14, 2017, 02:26:56 am »
Quote from: P90 on June 14, 2017, 12:58:12 am
2 hours?
You're fired!   :-DD

Time flies when you want to make sure it's done right  :-+

The picket lines will be in place tomorrow morning :rant: :box: :blah: :bullshit: :clap: unless he gets his job back   

Any cheap scab labor trying to get past may experience an accident    >:D

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Offline P90

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Re: Guesses on what I am attempting here?
« Reply #14 on: June 14, 2017, 02:39:10 am »
Quote from: Electro Detective on June 14, 2017, 02:26:56 am
Quote from: P90 on June 14, 2017, 12:58:12 am
2 hours?
You're fired!   :-DD

Time flies when you want to make sure it's done right  :-+

The picket lines will be in place tomorrow morning :rant: :box: :blah: :bullshit: :clap: unless he gets his job back   

Any cheap scab labor trying to get past may experience an accident    >:D


must be union... :palm:
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Offline macona

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Re: Guesses on what I am attempting here?
« Reply #15 on: June 14, 2017, 05:20:22 am »
I think I would be using anderson power poles instead of RC car connectors.

And 2 hours??? How?
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Offline tatus1969Topic starter

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Re: Guesses on what I am attempting here?
« Reply #16 on: June 14, 2017, 05:22:45 am »
Quote from: Electro Detective on June 13, 2017, 10:54:36 pm
Some sort of payback device for a Neighbors From Hell electrical switchboard ?  >:D

 :popcorn:
That must be really a switchboard right from hell if it uses Deans T connectors  >:D
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Offline tatus1969Topic starter

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Re: Guesses on what I am attempting here?
« Reply #17 on: June 14, 2017, 05:24:09 am »
Quote from: MK14 on June 13, 2017, 11:04:25 pm
You using a PMSM servo motor, at 2,000 Watts (we are!), to stack an extra third road traffic cone, on top of two nicely stacked on top of each other ?
:-DD you're well informed, but not even close ;)
edit: except for one part: resistance is supposed to be futile in this case as well 8)
« Last Edit: June 14, 2017, 07:22:07 am by tatus1969 »
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Offline tatus1969Topic starter

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Re: Guesses on what I am attempting here?
« Reply #18 on: June 14, 2017, 05:26:13 am »
Quote from: macona on June 14, 2017, 05:20:22 am
I think I would be using anderson power poles instead of RC car connectors.

And 2 hours??? How?
The connector scares worries me a bit too, but the counterpart is already there...
« Last Edit: June 17, 2017, 11:00:52 am by tatus1969 »
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Offline tatus1969Topic starter

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Re: Guesses on what I am attempting here?
« Reply #19 on: June 14, 2017, 05:33:24 am »
Quote from: P90 on June 14, 2017, 12:58:12 am
2 hours?
You're fired!   :-DD
I should have quit that job because of poor working conditions! The crimp tool didn't take the AWG8 without adding a hammer, the soldering iron didn't like that cross section either, and where's my electronics side cutter???

*cough* almost forgot that my boss is again me in this case ::) At least I am happy that I have found a proper space for my hobby now :)
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Offline tautech

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Re: Guesses on what I am attempting here?
« Reply #20 on: June 14, 2017, 05:54:41 am »
Run isolator for charging your electric scooter conversion.
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Offline tatus1969Topic starter

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Re: Guesses on what I am attempting here?
« Reply #21 on: June 14, 2017, 06:51:17 am »
spoiler alert: the correct anwer was already given :clap:
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Offline CM800

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Re: Guesses on what I am attempting here?
« Reply #22 on: June 14, 2017, 09:19:57 am »
 At least share what silicon it is...

I stand by coilgun.

http://4hv.org/e107_plugins/forum/forum_viewtopic.php?147269
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Offline tatus1969Topic starter

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Re: Guesses on what I am attempting here?
« Reply #23 on: June 14, 2017, 10:13:43 am »
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Offline technix

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Re: Guesses on what I am attempting here?
« Reply #24 on: June 14, 2017, 11:16:28 am »
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