Maybe a JK latch? Need some help
If you want to use relays, this should work: -



simulate this circuit &ndash; Schematic created using CircuitLab
So when you press start and hold it, the supply is routed to the motor via the relay NC contact and the motor spins. If whilst holding the start button the reset button gets pressed momentarily, the relay latches the &quot;reset event&quot; because the relay contact then shorts out the reset button. And, at that very instant, the motor is disconnected from the supply.
Not until the start button is released can the relay/latch be unlatched and then, the whole cycle is back to the beginning.