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In Case You Missed it

The Home Machinist (Part 11)

In our continuing series, author Bob Fritz explains how to use a boring head to drill odd-size or big holes. Hint 1: The bigger the hole, the slower the going. Hint 2: The traveling rest, which moves with the cutting tool, braces the material in two directions to minimize flexing.

Air Power

The art of porting cylinder heads, whether by hand or by CNC machine, is a valuable part of blueprinting detailed engine builds or overhauls, and surprisingly subtle changes can determine how efficiently the engine will breathe.

Home Shop Machinist

Basic mold making.

Kit Stuff

Drawing on experience; by cartoonist Robrucha.