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Posted

I am starting to build the Caldercraft HM Brig Badger, and would  appreciate any suggestions on how to follow the instructions to taper the keel from 5 mm at the fore end of the bearding line to 3 mm at the stern, taking off equal amounts of material from both sides. How precise does this have to be at the stern and going forward to the fore end of the bearding line?

Posted

Andy,  
Is this a keel or is it the slotted backbone usually used in kits to hold the bulkheads?   Tapering a keel can be done by drawing a fine pencil line long the centerline of the top or bottom of the keel then marking the 3mm (1.5mm from the center line), drawing a line to the 5mm wide point then tapering with plane, chisels, file, or sanding.  The tapering should be done before the rabbet is made.   I prefer planes and/or sanding but that is just my own personal choice.  If it is the slotted centerboard that you are referring to, I am sorry I have no idea on tapering this other than sanding as I assume it is plywood.

Allan

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