A dish with extruded hollow feet which I made earlier in the year was spoilt because the overhang sagged. I thought that if I used ridges, much like I tried with the stools, but this time in the form of a comb, it might give added strength. This die is made from aluminium (an old road sign in fact). The triangular wedges which I put in the picture are the baffles, which bolt inside the expansion box.
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