Patent ID: 6877243

Claim:
A shape cutting system for cutting a material having a surface, the system comprising: a frame having a lower support surface, a blade adjustment assembly coupled to the frame, a blade assembly operatively connected to the frame, the blade assembly positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to the lower support surface of the frame, the blade assembly including a blade retainer and a blade operatively connected to the retainer, the retainer having a rigid collar, and the blade assembly rotatable about the longitudinal axis, and a blade adjustment assembly coupled to the frame and to the blade assembly, the blade adjustment assembly including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member to adjust the pressure exerted against the blade assembly.