Hi, I was making some muntin stock for a cabinet, to hold some stained glass and thought I would post some photographs of how a Shaw guard system is used to safely machine the muntin stock on a shaper.
The completed muntin stock is 30mm wide X 20mm deep, with a 6mm wide X 14mm high rebate on both sides of the stock.
The cutter is a 125mm X 50mm carbide rebate head.
Here's a photo of the rebate head and safety bar installed. The safety bar prevents the workpiece from rotating into the cutter head.
Rebate cutter and safety bar.jpg
This is a photo of the safety bar illustrating how it supports the work piece.
Safety bar and work piece.jpg
This is a photo of the vertical hold down in the Shaw guard, it presses the work piece against the table.
Shaw guard hold down.jpg
This is a photo of the clear horizontal pressure bar/finger guard on the Shaw guard. It presses the work piece against the fence, and keeps your fingers out of the cutter area.
Clear Shaw guard.jpg
This photo is a side view of the Shaw guard showing both pressure bars in use.
Shaw guard side view.jpg
This is a photo of the completed muntin profile.
Completed muntin profile.jpg
Hope the above gives a good illustration of a typical modern shaper guard system...............Regards, Rod.