Cleaning up the edge

After the PVC is stretched over the mold to form the flare, the outside edge will be somewhat irregular. A router can be used to trim back to a good edge.

When cutting the disks for the mold, an extra three were cut to make this plug assembly which, when slid into the port and clamped provides support and a pivot point for the circle cutter.

The port will now be a perfect fit when rebated into the front panel

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