Cheapest DIY Spot Welder I Could Make

Watch this video for a step by step: https://youtu.be/nUR-giwn4z0

spot welder:
alumina copper spot welding rod: https://ebay.to/2V4OzZ6
spot welder pcb: https://ebay.to/2SMkQCq
foot pedal switch: https://ebay.to/2HM6MYr
buy an old microwave off kajiji or thrift store 800watts is good
amazon or local hardware store for wire. 2.5meters ish

4 LEDs (green-red-green-red) labeled from left to right represent
POWER 电源
STATUS 状态
FOOT PEDAL 脚踏
TRIGGER 触发

Referral links: (helps me buy and test it all this stuff lol)

USB output Tester: https://ebay.to/2Xb5pWB
best USB phone charger 24v QC3.0 Dual USB 5-29.4vdc: https://ebay.to/2JBEn72
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lii-500: https://ebay.to/2IVSjsu
opus: https://ebay.to/2ZXCdnE
tp4056: https://ebay.to/2Jg5inz
mini volt meter: https://ebay.to/324t4vJ
HW-586 battery tester: https://ebay.to/2KMAttQ
hw-586 case: https://ebay.to/2FH0CXb
ZB206: https://ebay.to/2YW1gaD
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spot welder:
alumina copper spot welding rod: https://ebay.to/2V4OzZ6
spot welder pcb: https://ebay.to/2SMkQCq
foot pedal switch: https://ebay.to/2HM6MYr
buy an old microwave off kajiji or thrift store 800watts is good
amazon or local hardware store for wire. each wire 2.5m long
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House Lighting system parts:
12-24vdc LED lights: https://ebay.to/2THFfcK
big waterproof dpdt switch: https://ebay.to/2Yofm4i
2k Pot+cap: https://ebay.to/2XgyxvO
5.5$ 12x var pots: https://ebay.to/2RJ6t2U
5$ 9x var pots with caps: https://ebay.to/2FBsifZ
5$ 200W 8A buck converter 6-40V to 1.2-36V: https://ebay.to/31Z7icx
diodes: https://ebay.to/306dWfx
terminal connectors: https://ebay.to/2Cfjny4
resistor set: https://ebay.to/2QKAGMM
Fuse holder: https://ebay.to/2XCeH2i
fuse kit: https://ebay.to/2X9OVhh
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7s 24v BMS Balancing boards:
63$ 60A-60A 60mA Bluetooth: https://bit.ly/2xhWurS
32$ 60A-30A 60mA on/of sw: https://ebay.to/2IYekXp
10$ garbage 20A 80mA no temp shut of: https://ebay.to/2RN7ZU7
160$ SBMS0 200mA: electrodacus.com
kickstarter.com/projects/electrodacus/solar-bms-and-digital-mppt-for-pv-electricty-and-h
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3.5$ 4s 40A 100mA: https://ebay.to/2LrBVkV
3.7$ 3s 40A 100mA: https://ebay.to/2XyPnKx
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Wall chargers:
29$ 4A charger: https://ebay.to/2Jcb0XR
37$ 5A charger: https://ebay.to/2YpfcKe
42$ 7A charger: https://ebay.to/2XHNRFK
64$ 10A waterproof: https://ebay.to/2LuPekH
78$ 15A: https://ebay.to/2IXfcvq
ISDT T8 BattGo 1-8s 30A balancer: https://ebay.to/2M0kuIz

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18650 holder 4x: https://ebay.to/2YpCpvG
4x1 screws: https://amzn.to/2Yl5cB0
Fuse wire 30 AWG Tinned Cu 28$ 3140'x0.0100" https://amzn.to/2NmxXwz
dc breakers (20,30,40,50...100Amp): https://ebay.to/2TPWLM2
Cable lugs 8awg 5/16": https://ebay.to/2ssDGUd
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2,3,4,5 or 6p tabbing wire: https://ebay.to/2XB6Ulf
18650 spacers pack: https://ebay.to/2FDOZQA
1m pvc heat shrink 150mm 4x? spacers: https://ebay.to/2ZWKFUk
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12vdc desktop computer ATX power supply: https://ebay.to/2VT1bTZ
buck to 12vdc converter: https://ebay.to/2sqBg8Y
5$ 200W 8A buck converter 6-40V to 1.2-36V: https://ebay.to/31Z7icx
11$ 300w 20A buck: https://ebay.to/2FI0iqU
19$ 6A buck boost 10-40 to 0-38v: https://ebay.to/2QLUpvJ
7$ 15A 400w boost converter: https://ebay.to/2Rp82WK
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14$ 5A MPPT CC/CV buck converter 6-36v to 1.25-32v: https://ebay.to/2O17l4O
50$ mpt-7210A mppt boost: https://ebay.to/2KOwnS2
20$ pwm 20A 29.4v solar charge controller: https://ebay.to/2xn7a8J
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A/C power supply:
Male Power Socket 10A 250V 3Pin IEC320 C14 Inlet: https://ebay.to/2XDwgPb
110ac to dc power supplies: https://ebay.to/2HNiRN9
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DIY SOLAR PANEL PARTS:
60 cell panels are best for 7s 29.4v systems
urethane @ lowes: https://bit.ly/2RcHL9n
45v 10A Schottky Diode 10SQ045:https://ebay.to/2JbE5Tb
0.37w 78x26mm: https://bit.ly/2sI7LiX
0.43w 52x52mm https://bit.ly/2CFQ87P
0.66w 78x52mm https://bit.ly/2FO2lM3
1.75w 156mmx62.4mm: https://bit.ly/2RHDMGE
2.55w 156x104MM: https://bit.ly/2UiqAFl
4.38w 156×156mm: https://bit.ly/2FJy7d0
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photo resistor kit: https://ebay.to/2Nj8K6j
5x 5K Potentiometer 15mm ON OFF Switch: https://ebay.to/2RuLHaf
2$ 5x DPDT on/off/on clip-in: https://ebay.to/2Yvcm68
2.4$ 5x DPDT on/off/on screw-in: https://ebay.to/2xk5Bbo
2$ 20x SPDT micro switch: https://ebay.to/2HaUyr6
2$ 5x SPDT switch: https://ebay.to/2FGOJQW
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Dremel saw blades: https://www.banggood.com/custlink/KGK...
Dremel discs: https://www.banggood.com/custlink/Gv3...
Dremel guide: https://www.banggood.com/custlink/v3m... and https://ebay.to/2V4OULm