Tony Shen
Dowel Pin Hole Sizing
Dowel pins are useful for locating a part into a repeatable, fixed position. They are often used to align parts that need to be more precise than simply lining up screws, as screw holes generally are used for fastening, and not precise alignment. However, pinned joints are not as precise as kinematic couplings, which are used for more precision and repeatability in the optics field and other high tolerance applications. Pinned joints are tolerant to within 1 μm, with a very l