These instructions will show how to adjust the air pressure on the head in order to cut dense material.

The Variable Pressure Optimization (VPO) Feature allows the user to compensate for dense and extra dense matboard. Not all CMC models have this feature.

The head air regulator is located on the left side of the head and controls the pressure of the foot block against the matboard as it is cutting.  

The minimum operating air pressure is 35 psi.

The maximum air pressure should be less than 60 psi to avoid crushing the matboard.   

The software will prompt for a head pressure change only if the current mat is a different setting than the previously cut mat. If the settings are the same as the previously cut mat, the CMC will skip the following instructions and proceed to cut the mat.

Select the desired layer on the Cutting Preview.

Click the Cut Speeds button to open the Cut Speeds Screen.

Check the Dense checkbox for dense matboard and click OK.

Click on the Blade Depth button to open the Blade Depth screen.

Change the Blade Depth to the appropriate setting for this matboard.

Click OK.

The Cutting Preview displays the selection of matboard. Dense Material is displayed at the bottom of the screen and the dense layer is highlighted with an asterisk to indicate that this layer is dense.

Click Cut to cut the mat and Align the Head if requested.

The Head plunges at the home position and applies the current pressure. It then displays a prompt to adjust the head pressure to the high setting. 

Pull out the air regulator pressure knob by pulling it to the left.

Turn the air regulator pressure knob clockwise until the marker on the gauge is at the high setting, as indicated by the bracket to the right of the air pressure gauge.

Make sure the gauge does not go above 60 psi.

Set it by pushing the air regulator pressure knob back in.

Click OK to cut the mat with this setting.