At 16:43 18 February 2009, Andy wrote:
On Feb 18, 7:03=A0am, JJ Sinclair wrote:
I use hole-saws in a drill press (drilling from the
rear)

Why drill from the rear? I was so sure that cutting and drilling from
the front would be better that I cut a wood spacer to fit inside my 28
panel so it was properly supported. It was much easier to measure
and mark the open face than it would have been to work under the lip.
What did I miss?

Maybe I'm mixing up front and rear. I'm assuming the front face of my
panel faces aft, or to the rear of the glider.

Andy
andy; cut holes from the side that you look at,while flying ( the
molded/finished side) and be sure to lay out the inst. mounting holes from
the centre that the hole saw will use. the back of the panel will be rough
and uneven, set up the hole saw so that the drill goes into your wood
block to act as a pilot hole.I use hole saws that have a single carbide
cutting tool and only cut inst holes with them. Paul