01 — Journal
01 / 02
Notes from the drawing board.
Short, practical articles on the decisions that make parts manufacturable. Written by the engineers who make them, for the teams who have to live with them.
02 — Latest
02 / 02
All articles
Tolerancing
7 min read
Reading a tolerance stack before it reads you
Four parts, four reasonable tolerances and one gap that can close completely. A worked example of worst-case and statistical stack-ups.
Enclosures
8 min read
Designing an IP67 gasket path that survives assembly
A seal is only as good as its worst corner. How we size grooves, choose compression and keep the gasket in place on the line.
Electronics
5 min read
Board first, box second
Why we start an enclosure from the circuit board, its connectors and its antenna, and only then draw the plastic around it.
Design for manufacture
6 min read
Snap-fits that still click after a thousand cycles
The cantilever snap is the cheapest fastener there is, as long as you respect the strain limit of the plastic.
Process
4 min read
What a revision log tells a supplier
A clear revision history is the cheapest way to get comparable quotes and fewer surprises at the first article.