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tools in the catalog
Excel calculators with the formulas already built and verified, ready-to-use templates, and clear CAD guides. Made for students and working engineers.
Type any part made by a mechanical process, from a gear to an engine block to a turbine blade, and get the full route to make it: the primary process, then every step that follows, with the real tolerances, tooling and costs.
Open the process finder →Every tool starts from a real problem, not a template. Here's what that means in practice.
Every formula is checked against known values before it ships. No broken references, no guesswork.
Yellow input cells, a "Start Here" tab, and a clean layout. You enter numbers; the tool does the rest.
Built by an IE student who kept rebuilding the same calculators, refined into tools anyone in the field can use.
From OEE dashboards to interview prep, organized the way industrial engineering actually breaks down.
The tools that apply across the widest range of IE work and coursework.
Break equipment losses into Availability x Performance x Quality, auto-calculated with a trend chart.
All 14 GD&T symbols, datums, and modifiers explained plainly.
Beat the ATS filter, then win the human reader. Includes a full worked example.
Full critical-path network analysis, plus resource loading to spot overallocation.
Standard FMEA layout with automatic RPN scoring and the full 1-10 scoring reference.
Cp, Cpk, DPMO and a working I-MR control chart. Process capability without the textbook headache.
Twelve formulas engineers get wrong, each one shown beside the method that is actually right, with the gap between them in money or units. Thirteen tabs, live numbers you can change, nothing locked and nothing hidden.
Send me the workbookEvery core industrial-engineering formula, from queueing and inventory to quality, OEE, economics, statistics and line balancing, on clean, exam-ready sheets, with every symbol explained.
Send me the cheat sheetIndustrial engineering explained properly, by me and by guest writers.
A meter measures kilowatt-hours. A billing engine turns them into money. A payment system moves it. What breaks when one of the three fails.
OEE multiplies Availability, Performance and Quality instead of averaging them. The math, a worked shift, and why uptime hides most of your losses.
The blog is open to guest writers. You keep the byline, you get a link back to you, and you get a certificate of appreciation.
Read the blog