"Leon" wrote in message

Space balls will keep the panel centered however you still have the
problem
of the panel moving front to back and you see a gap at the front. Cut
thin
long shims to slide into the slot behind the panel.

If you've ever used properly sized twine, it will also keep the panel from
moving front to back ... I know, I didn't believe it either.

That said, I've also used plane shavings for shims on the backside, and as
far as I know they are still doing the job years later.

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Last update: 12/13/05