Microwave Oven Ammo Box Spot Welder, DIY build for 18650 battery tab welding

Files and info for the spot welder project these will get updated as when new features are added to the design.

Files for the Arduino Uno:

arduino-firmware-for-spot-welder-v1-01

STL files for the 3D printed case:

Spot-welder-lcd-switch-mount-stl

Spot-welder-lcd-switch-frame-stl

Video part 1

Video part 2

LCD – https://amzn.to/2JyW4Xm

Arduino Uno – https://amzn.to/2I0t5LU

SSR – https://amzn.to/33zr0Op

if you want to help and support further projects have a look at the latest wish list https://www.amazon.co.uk/hz/wishlist/…

18650 Discharge tester

Circuit below for the discharge tester, this is to be repeated for each channel (adc to 15 etc)

connection circuit for load resistor and MOSFET for discharging a single 18650 Li-Ion cell, this can be repeated on all of the Arduino ADC channels and MOSFET control pins to build the 16 channel version etc
 

Arduino mega Code download

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