Browser-based calculators and reference tables for mechanical engineers
Practical, browser-based tools built from real engineering work — no login, no installation, no nonsense. Covers structural calculations (beams, bolts, welds), material databases (ČSN / EN / DIN / AISI cross-references), geometric norms (ISO tolerances, fits, surface roughness), and fastener reference tables per EC3 / DIN / VDI.