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DIY Capacitive Discharge Welder - Build Video

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Upgrading the capacitors and boost converter on my battery tab welder for more power and faster charging.

New caps: 16X 89,000 micro Farad, 30 volt capacitors in parallel - up from a 1 Farad 16 volt single unit

New Voltage Booster: A higher current module for my Rube Goldberg style charging system which has a voltage booster then a constant current constant voltage buck converter.

It's a simple, single pulse, single shot design. Now, if I can keep my self from trying to design dual pulse circuitry I might actually be able to build some battery packs...


Check out some welds here:
https://www.youtube.com/watch?v=u6-HpR7Wfr8


Check out welder version 1 here:
https://www.youtube.com/watch?v=TNclCrfsgJQ



Word of the day: "Allright"


BE CAREFUL




Time Code Index:

Old vs New Voltage Booster
http://www.youtube.com/watch?v=OtCiorlYP1U&t=0m52s

Power Discussion Spreadsheet
http://www.youtube.com/watch?v=OtCiorlYP1U&t=1m42s

Capacitor Mock Up
http://www.youtube.com/watch?v=OtCiorlYP1U&t=2m34s

Copper Cutting
http://www.youtube.com/watch?v=OtCiorlYP1U&t=3m0s

Capacitor Configuration
http://www.youtube.com/watch?v=OtCiorlYP1U&t=3m49s

Charging System Mock Up
http://www.youtube.com/watch?v=OtCiorlYP1U&t=5m26s

Ebay Booster and Buck Converter
http://www.youtube.com/watch?v=OtCiorlYP1U&t=5m48s

Wiring Voltage Booster
http://www.youtube.com/watch?v=OtCiorlYP1U&t=7m55s

Boost to Buck Wiring
http://www.youtube.com/watch?v=OtCiorlYP1U&t=8m40s

Charging System Wired Up
http://www.youtube.com/watch?v=OtCiorlYP1U&t=9m25s

Charge/Discharge Test with old Capacitor
http://www.youtube.com/watch?v=OtCiorlYP1U&t=11m17s

Capacitor Charging and Electrode Connections
http://www.youtube.com/watch?v=OtCiorlYP1U&t=13m16s

Final Mock Up
http://www.youtube.com/watch?v=OtCiorlYP1U&t=14m31s

Silicon Controlled Rectifier (Switch) Gate Triggering
http://www.youtube.com/watch?v=OtCiorlYP1U&t=15m35s

Electrodes
http://www.youtube.com/watch?v=OtCiorlYP1U&t=16m7s

18650 Cells for Gate Triggering
http://www.youtube.com/watch?v=OtCiorlYP1U&t=17m17s

Three Wire Volt Meter
http://www.youtube.com/watch?v=OtCiorlYP1U&t=18m40s

Test! Charge/Discharge
http://www.youtube.com/watch?v=OtCiorlYP1U&t=19m46s
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