Stand on the foot platform of a bench press machine configured for calf raises with the lever or bar in a comfortable position. Place the balls of your feet on the edge of the platform with heels hanging off, then press down through your toes to raise your heels as high as possible. Pause and squeeze the calves at the top, then slowly lower your heels back toward the floor to feel a stretch in your calves before repeating.
Log your lever calf raise (bench press machine) sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.