I'm thinking of adding 2 snap vents in the side windows. Anyone cut them out before? Looks like 3-1/2" diameter they cut at the factory in the skylights but not sure if a regular hole saw works or something special to keep from cracking?
I'm thinking of adding 2 snap vents in the side windows. Anyone cut them out before? Looks like 3-1/2" diameter they cut at the factory in the skylights but not sure if a regular hole saw works or something special to keep from cracking?
I added them in a Citabria and used a regular hole saw with a center guide bit. Started it on one side went about half way through then finished it from the other side. Need to go real slow so that the plexi won't heat up and start to get sticky. Worked great. We added two of them. Have never put them on the sides though.
Buy a metal hole saw (not wood, because you want the fine teeth of a metal saw) the size you need and use high speed and very light pressure. Saw thru half of one side of the plexiglass and then finish the hole from the opposite side.
Steve Dentz
N419LD
Carnation, WA
Be sure to check clearance when the window is open against the bottom of the wing
I fabricate windshields for the Highlander Aircraft I would not recommend going slow speed when using a hole saw on plexiglass, at a minimum use medium high. Reason is the teeth have a tendency to catch if too slow and will cause the saw to walk around and not cut a clean hole, it'll also cause micro cracks which will eventually turn into a visible crack. As long as you have light pressure and cut from both sides you won't get any melting. Finish off the hole edges with 400-600 sand paper
Steve Dentz
N419LD
Carnation, WA