Sliding Crosscut Sled

I designed this crosscut sled based on the one by Jere Cary in his book "Building Your Own Kitchen Cabinets". It features a Plexiglas dust shield above the blade and a blade guard at the back, two features I thought to be very important for my own safety. Later I added a replaceable zero clearance insert.

Attached below is a SketchUp model of my sled, should you care to download it for your own use.