Aulakiria wrote: ↑
Jan 26, 2018 5:45 pm
Is the left side of the picture (minus the battery) properly spot welded?
no it's not. it looks quite ok, but you can remove it by lifting the nickle.
The right side of the picture (plus on the battery) appears to be in the wrong position.
Make sure that both electrodes are located on the battery terminals (metal part).
yes. sorry for the misleading picture. the welds are from a earlier test. the only relevant part is the negative pole of the left battery.
What kind of battery did you use?
Battery performance is important.
i tried different ones. i have 3s 40c 2.650mAh. 2 in parallel. probably the adapter is too weak? 12awg from battery to adapter. then 2x 14awg to xt60. and 10awg between xt60 and xt90 at the welder.
i also tried a 4s 3.850mAh (charged to 15v only) with xt90 directly soldered to the battery wires.
the result didn't really change.
if i set it to 2x and 16ms i can get welds that stick a bit better. not what they need to be yet.