Setting the punch gauge for the first marking. As the ribs are over 3.25mm thick I will do this in 3 stages, 2.75mm, 2.1mm and 1.8mm

the marks from the sharpened nail are quite visable

with a toothed blade in the plane now comes teh long slow job of thinning the rib and constant checking for even thickness

this is how I mounted the rib whilst planing, being careful to keep the surface clean

feeler gauges and a micrometer work well for setting the punch clearance

the sharpened nail works really well in scribing the wood

one rib wow 1.7mm thick and only three left to go

all the ribs are now done and ready for cutting and bending. One thing I found hard was getting the scraper to cut cleanly over such a wide area.

The corner blocks are marked for carving the area where the ribs will be glued on

staring to carve the shape of the corner block. I was surprised how easy it to carve the spruce

the inner parts of right side corner blocks are roughly cut