frontbackslop = 0.25;
+knifewidthslop = 1.6;
+
screwbackdepth = 6.0 - 1.0;
screwdia = 4.0 + 0.5;
screwcsinkdia = 9.8 + 1.0;
// computed
-function width(k) = widths[k];
+function width(k) = widths[k] + knifewidthslop;
side = minsidein + screwcsinkdia + minsideout;
totaldepth = front + maxhandledepth + back;