Changes

* You can make a simple device yourself for cutting circular segments. Fix a drawing-pin at the center of the required circle on the working table with a piece of tape. Fix the workpiece onto the pin and turn the workpiece around the pin (Fig. 7).

* You can make a simple device yourself for cutting circular segments. Fix a drawing-pin at the center of the required circle on the working table with a piece of tape. Fix the workpiece onto the pin and turn the workpiece around the pin (Fig. 7).

[[File:Foam7.png|400px|none]]

[[File:Foam7.png|400px|none]]

* The cutting wire normally breaks above the guide bushing. Insert the wire a few inches further in the lower wire guide and fasten it again at regular intervals to prevent the wire from breaking.

* The cutting wire normally breaks above the guide bushing. Insert the wire a few inches further in the lower wire guide and fasten it again at regular intervals to prevent the wire from breaking. If the wire breaks, loosen the clamping knob and remove the broken piece. Then loosen the spool screw, pull out more wire and place it into the wire hole. Re-tighten all of the screws.

==Maintenance==

==Maintenance==