- Initial fairing- Either by hand plane, hand sanding, ROS with 80 grit paper. Whatever you feel comfortable with. The key here is to take the high spots where the planks meet and knock them down to make the hull initially fair.
- Filling- It's inevitable that there will be a need to fill somewhere on the hull. I did the filling after the initial fairing for a couple of reasons. First, by completing the initial fairing, I can better assess the spots that need filling. Second, I am going to sand the hull at least two more times and will be able to clean up anything that needs it on the next couple of sandings.
- Second sanding- Again with 80 grit. I know this sounds a bit aggressive, but the filler from step 2. is epoxy mixed with sanding dust (wood flour) and that stuff is hard to sand. I go aggressive to clean that up. However, care needs to be taken in order to not create dips and gouges with the power sander.
- Wet the hull- This is done to raise the grain of the wood fibers that may have been mushed down during the sanding processes. It also will highlight the spots where you still have glue that needs to be cleaned up. If you don't get all the glue/epoxy off the hull before 'glassing, those areas will show as light or blotchy. The way I see it, if something is avoidable, avoid it.
- Final sanding- This sanding is accomplished with 120 grit after the hull is completely dried out from the 4th step. This will prepare the hull for the 'glass and also knock off the raised fibers from the wet the hull step above. Once this step is complete, the hull is ready for 'glass and epoxy.
Wednesday, March 4, 2009
Let the fairing begin!
With the stems shaped roughly, it's time to cut the sheer of the hull. The sheer is the line of the top of the canoe as it sits in the water that gives the canoe it's familiar shape. Cutting the sheer is pretty straightforward:Start by placing a batten along the sheer from the station molds and use that to draw a line to be cut to.
Remove the batten and use a utility knife to cut to the sheer line. Be sure to cut this a little proud, as you will place the inwales a little below there and trim the hull to match and ensure a smooth joint.
You can see the fairing of the outer stem as well as the dowels sticking out of their holes. They will be cut flush once the epoxy sets.
Another view of the stem.
The fairing process is fairly involved and takes a bit of time. Steps to be followed from initial fairing to ready for glass are as follows: