$(foreach t,$(KNIFEBLOCK_TEMPLATES), \
knifeblock-knives-t$k$t.dxf))
-knifeblock-knives-templates: $(KNIFEBLOCK_TEMPLATE_FILES)
+knifeblock-knives-templates knifeblock.stl: $(KNIFEBLOCK_TEMPLATE_FILES)
knifeblock-knives-t%.dxf: knifeblock-knives-filter knifeblock-knives-trace.fig
./$< $* <$(filter %.fig, $^) >$@.tmp.fig