Resistance welding from a transformer from a microwave part 2

Hello everybody . Yesterday I received an automation unit at 100 amperes and finally brought everything together.
So the welding itself.

Pedal

The digital welding unit, the green knob is the welding time in seconds and the red knob is the amperage.

Connection diagram

Ready welding first experience ... I think I need to sharpen sharpen the electrodes I try on dead batteries.


Actually, the time cuts off very precisely up to 50 seconds
Thank you all for your attention.