Delcam CRISPIN LastMaker - 3D Last Engineering and Grading CAD software Use accurate 3D digital lasts that you can modify quickly and simply for design purposes. This means you no longer have to wait for your last to be modified by hand, but can instead make any changes digitally to begin your design sooner. All modifications are based on accurate measurements so you can guarantee precision at all times. Lasts can be stored in a searchable library to make finding the one you want quick and easy.