Ves misjudged his own strength. He accidentally launched a stronger punch than he intended. The brief spike of pain that resulted from his ill-advised action temporarily scattered his concentration and scrambled his thoughts.
Still, he didn't punch himself that hard. He quickly regained his wits as the spike of pain quickly faded into the background.
"Right. My mech design is almost complete! I just need to put the finishing touches on it before I can proceed to the next phase."
The false inspired state that he had managed to induce on himself was a little different this time.
Part of it was because he didn't make use of his regular tool this time. The Hammer of Brilliance was specifically designed to accommodate and channel Vulcan's strength.