How-to guides

Short step-by-step guides for hobbyists and professionals, each linked to the matching calculator.

Cutting a thread on the lathe

Setting up, the thread dial, infeed and checking the fit.

Marking out a PCD

Bolt circles with dividers, a DRO or a rotary table.

More guides (tapping, ACME/trapezoidal threads, knurling) are planned.