The part between the formula and the project
Guides
These guides explain how to use the numbers without losing track of what they represent.
Measure From One Datum
Prevent repeated layout errors from accumulating.
Equal Spacing Without Carrying the Error
Lay out repeated parts from one fixed edge.
Rounding Workshop Measurements
Keep useful precision without pretending the tool is more accurate than it is.
Estimating Materials and Waste
Add a realistic allowance without hiding the base requirement.
Using Electrical Calculators Safely
Understand the limits of Ohm’s law and impedance calculations.