Set a Smith machine bar at shoulder height and step back so it rests on your front shoulders with a clean (overhand) grip. Keep your chest up and core braced, then lower into a squat by bending at the hips and knees while maintaining an upright torso. Descend until your thighs are around parallel to the floor, then drive through your heels to return to standing with control.
Log your smith front squat clean grip sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.