I have one of these welders and I'm very happy with it. Very well made and it works great with my Turningy lipo nanotech 5ah battery.

Decent approach in term of invention way! That's really cool

I like how we are dealing with energies instead of pulse times, as well as having the circuit's own resistance measured and used in self-calibration. Will look into this further :)

WOW!  A very elegant design.  A little pricey, but a very nice piece of kit.

This is the best diy implementation of a spot welder i've seen so far, the software with calibration and measurement features is like a cherry on top, really nice.

A very neat tidy and functional unit . . . . I like !

When it all begun.

Still haven't actually used mine for what I bought it for ( replacing the 18650s of my Philips Robust Collection HR1379/00 Hand Blender ) but just viewing this video again after watching the reviews of more recent - made in China - spot-welders really calms my soul about buying this Kit back then 😗

It's very nicely designed and constructed. The part I like the best are the large, clean, shiny bus bars on the PCB connecting the mosfets. It's a work of art!

Well done

I want one............ The best I have seen so far. Great design and features.

Very cool,great work!

That is beautiful. Nice work.

Fascinating and at the same time well documented, excellent engineering both electronic and mechanical....I have subscribed............

Excellent and clever design and logic. Chapeau.

I have been looking at getting a small spot DYI spot welder for a while. I really like this one. I'm heading to the store now. Great design and explanation.

This is very impressive

I admire your ingenuity and business sense.  Good luck!  I hope you sale a ton of them.

That looks fantastic . Very portable  , adjustable and easy to use ! I want one !

Perfect tool!